1. Introduction

When buyers evaluate a business, attention naturally gravitates to revenue, assets, contracts and goodwill. Yet some of the largest hidden liabilities in any acquisition sit within the workforce. Unpaid entitlements, historical underpayments, misclassified contractors, unresolved disputes and non-compliant employment arrangements can quietly erode the value of a business — and, in many cases, they follow the buyer through to completion and beyond.

Employee liabilities are not merely a human resources concern. They directly affect the purchase price, the buyer’s future profitability, and the level of risk assumed on completion. A business that looks profitable on paper may be carrying significant accrued leave, superannuation shortfalls, redundancy exposure, or underpayment liabilities that are not obvious from the financial statements alone. Identifying these risks before completion is one of the most important tasks a buyer undertakes.

A recurring and costly misconception is that employment obligations only pass to a buyer if the parties intend them to. Australian employment law does not work that way. Depending on how the transaction is structured, significant obligations can transfer automatically — including recognition of prior service, accrued leave and even the coverage of an enterprise agreement — regardless of what the parties would prefer. Understanding when and how this happens is central to protecting the buyer.

Every acquisition is different, and the employment consequences depend heavily on how the deal is structured. The four most common structures are:

• an asset sale (buying the assets and, often, the business as a going concern);
• a share sale (buying the shares in the company that employs the staff);
• a business merger (combining two workforces into one operation); and
• an internal restructure (moving employees between related entities within a corporate group).

This guide works through the full lifecycle of employment risk in a business acquisition — from early due diligence, through the specific legal issues that arise, to the contractual protections and post-completion steps that help a buyer manage what it inherits. It is written for business readers, not lawyers, and explains the key legal concepts in plain English.

2. Understanding the Different Types of Business Acquisitions

Because the employment consequences differ so significantly, the first question any buyer should ask is: how is this deal being structured? The answer shapes almost everything that follows — which liabilities transfer, whether employees continue automatically, whether prior service is recognised, and what protections need to be negotiated in the sale agreement.

Share sale

In a share sale, the buyer purchases the shares in the company that owns and operates the business. The employer does not change — it remains the same legal entity, simply under new ownership. This has important consequences for employees and for the buyer:

• The employer remains the same legal entity.
• Employees generally continue in their roles uninterrupted, with no break in service.
• Existing employment contracts remain in force on their existing terms.
• Historical liabilities remain with the company — they do not disappear on sale.
• The buyer effectively inherits all of the company’s employment risks, because it now owns the entity that carries them.

The critical point for a buyer is that a share sale is an inheritance of the whole history of the business. Because the employing entity is unchanged, the buyer steps into every past and present employment liability the company holds. These commonly include:

• accrued leave liabilities (annual leave, long service leave and, where relevant, personal leave records);
• historical underpayments of wages, penalties, allowances or superannuation;
• work health and safety (WHS) breaches, notices or prosecutions;
• discrimination, harassment or general protections claims;
• workers compensation history and any adverse claims record affecting premiums; and
• existing or threatened disputes, investigations and litigation.

Because these risks are absorbed through the company itself, share-sale buyers rely heavily on due diligence and on warranties and indemnities in the sale agreement to protect against liabilities they did not create.

Asset sale

In an asset sale, the buyer purchases selected assets of the business — which may include equipment, stock, goodwill, customer contracts and premises — rather than the shares in the company. The employing entity does not come with the assets. This changes the position for employees significantly:

• Employees are not automatically transferred to the buyer.
• The buyer chooses whether to offer employment to some, all or none of the seller’s staff.
• The seller usually terminates the employment of the relevant employees on or before completion.
• Complex rules apply to the recognition of an employee’s prior service if they move to the buyer.

Buyers sometimes assume that an asset sale allows them to leave employment liabilities entirely behind. That is only partly true. While the buyer does not automatically inherit the seller’s employees, the “transfer of business” rules in the Fair Work Act 2009 (Cth) can still require the buyer to recognise prior service and preserve certain entitlements where it re-employs the seller’s staff. The key concepts that arise are:

• Fair Work Act transfer of business provisions (Part 2-8), which can carry service and industrial instruments across to a new employer;
• recognition of service for entitlements such as leave and redundancy, where a connection between the old and new employer exists;
• associated entities, where the old and new employers are related — in which case prior service must generally be recognised; and
• redundancy exposure, because the manner in which the seller terminates staff (and whether the buyer makes offers) affects who bears the cost of redundancy pay.

These rules are addressed in detail in the dedicated Transfer of Business section below, because they are the single most misunderstood area of employment risk in asset sales.

Business merger

A merger combines two operating businesses into one. Even where the corporate mechanics are handled cleanly, mergers create distinct workforce risks that flow from integrating two sets of people, roles, contracts and cultures:

• integration of two workforces with different pay structures, policies and expectations;
• duplicated positions, where both businesses have people performing the same role;
• consultation obligations under modern awards and enterprise agreements when major workplace change is proposed;
• potential redundancies arising from duplication or restructure; and
• enterprise agreement complications, where each business brings a different agreement (or none) into the combined operation.

Internal restructure

An internal restructure moves employees between related entities within the same corporate group — for example, transferring staff from one subsidiary to another before or after a transaction. Because the entities are usually associated, prior service and accrued entitlements must generally be recognised, and the movement of staff can itself trigger transfer of business rules. Restructures are frequently used to “clean up” a group before sale, but they should be documented carefully: an internal transfer that is handled poorly can create the very underpayment, service-recognition and redundancy issues the group was trying to avoid.

Comparing the structures at a glance

The following comparison summarises how the key employment consequences differ across structures. It is presented in prose rather than a table so it can be copied and reused easily.

Who is the employer after completion? In a share sale, the same company continues as employer under new ownership. In an asset sale, the buyer (a different entity) becomes the employer only for those employees it chooses to re-employ. In a merger, the surviving or combined entity becomes the employer. In an internal restructure, a related group entity becomes the employer.

Do employees transfer automatically? Yes in a share sale — nothing changes for the employee. No in an asset sale — employees must be offered and accept new employment. In mergers and restructures it depends on the mechanism used, but employee movement is usually deliberate rather than automatic.

Is prior service recognised? Always in a share sale, because service is unbroken. In an asset sale, service is recognised where the transfer of business rules apply or the parties are associated entities — and can be broken (for some entitlements) where the buyer expressly declines to recognise it and the employers are not associated. In restructures between associated entities, service is generally recognised.

What happens to historical liabilities? In a share sale they remain with the company and pass to the buyer in substance. In an asset sale they generally remain with the seller, except where transfer of business rules preserve specific entitlements. This difference is why asset sales are often preferred by buyers seeking to limit exposure — though, as explained below, the protection is not absolute.

3. Why Employment Due Diligence Matters

Employment due diligence is the process of investigating the target’s workforce arrangements before completion so that the buyer understands exactly what it is acquiring. Its purpose is to replace assumptions with evidence — and to price and allocate risk accordingly. Effective due diligence identifies:

• hidden liabilities — accrued leave, underpayments, superannuation shortfalls and unresolved claims that may not appear in the headline financials;
• future costs — upcoming pay increases, casual conversion obligations, redundancy exposure and remediation of non-compliant practices;
• compliance risks — award and enterprise agreement breaches, sham contracting, superannuation and WHS non-compliance;
• operational risks — dependence on a small number of key people, thin succession planning, and workforce instability; and
• cultural risks — disengagement, high turnover, unresolved grievances and integration challenges.

The findings of due diligence do not simply sit in a report — they drive the commercial and legal terms of the deal. In particular, employment due diligence directly affects:

• the purchase price, which may be reduced to reflect quantified liabilities such as accrued leave or underpayment remediation;
• warranty negotiations, as the buyer seeks assurances about compliance and the absence of undisclosed claims;
• indemnities, which shift specific identified risks (for example, historical underpayments) back to the seller; and
• completion conditions, which may require the seller to rectify problems, pay out entitlements, or resolve disputes before the deal completes.

Example — due diligence changing the deal

During due diligence, a buyer’s advisers discover that the target has been paying salaried staff a flat annual salary without checking it against the applicable modern award. A rough reconciliation suggests a shortfall in overtime and penalty entitlements over several years. The finding does not end the deal — but it leads to a price reduction, a specific indemnity for pre-completion underpayments, and a completion condition requiring the seller to commission a full back-pay reconciliation.

4. Employment Documents Buyers Should Review

Thorough due diligence depends on obtaining and reviewing the right documents. The following is a comprehensive list of the employment records a buyer should request, together with what to look for in each.

Employment contracts

Request contracts across every category of worker — permanent (full-time and part-time), casual, fixed-term and executive — and check that they actually exist and match current practice. Look for out-of-date contracts, missing agreements, and terms that are inconsistent with the applicable award or enterprise agreement.

Contractor agreements

Review each independent contractor arrangement carefully, because contractors are a frequent source of hidden liability. In particular, examine:

• restraints of trade and their scope;
• bonuses, incentives and commission arrangements;
• confidentiality obligations;
• intellectual property (IP) ownership and assignment;
• notice periods; and
• termination rights and how the relationship can be ended.

As discussed later, the substance of the relationship — not the label in the contract — determines whether a “contractor” is in truth an employee.

Position descriptions

Position descriptions help confirm what employees actually do, which is essential for correct award classification. Review the stated duties, key performance indicators (KPIs), and the award coverage that flows from the real nature of the role.

Policies and procedures

Workplace policies reveal how the business manages its legal obligations. Review policies covering leave, performance management, bullying, harassment, flexible work, WHS, privacy and social media use. Missing or outdated policies can indicate broader compliance gaps and increase exposure to claims.

Payroll records

Payroll data is where underpayment risk is usually found. Review wages, superannuation, allowances, penalty rates, overtime and bonuses, and reconcile them against award or enterprise agreement minimums. Small, systematic errors can compound into very large liabilities across a workforce and over several years.

Leave records

Accrued leave is a real and often substantial liability. Review annual leave, personal/carer’s leave, long service leave and any purchased leave balances. Long service leave in particular can represent a significant accrued cost that is easy to overlook.

Timesheets

Where employees are paid by reference to hours worked, timesheets are critical evidence. Review recorded hours, overtime and break compliance. Timesheets can also be pivotal evidence in contractor misclassification and underpayment questions — and their absence is itself a red flag.

Organisational chart

An organisational chart shows reporting lines, identifies key personnel and reveals the overall structure of the workforce. It helps a buyer understand where the business is dependent on particular individuals and where duplication or restructure may be necessary after completion.

5. Employee Entitlements Buyers Must Understand

Employee entitlements are governed primarily by the National Employment Standards (NES) in the Fair Work Act 2009 (Cth), together with applicable modern awards, enterprise agreements and State and Territory legislation. Each entitlement carries its own acquisition risk, so each is addressed separately below rather than lumped together.

Annual leave

Full-time and part-time employees accrue paid annual leave under the NES (generally four weeks per year, or five for certain shift workers). Accrued but untaken annual leave is a liability that either transfers with the employee (share sale, or asset sale where service is recognised) or must be paid out on termination. A buyer should quantify the total accrued balance across the workforce and confirm who is responsible for it on completion.

Long service leave

Long service leave is governed largely by State and Territory legislation (for example, the Long Service Leave Act 1955 (NSW)), with entitlements accruing over lengthy periods of continuous service. It is one of the most commonly overlooked liabilities in an acquisition because it accrues slowly and may not be fully provisioned. Where prior service is recognised, long-serving employees can bring substantial accrued or pro-rata entitlements across to the buyer.

Personal/carer’s leave

Employees are entitled to paid personal/carer’s leave under the NES (generally ten days per year for full-time employees, accruing progressively). While it is usually not paid out on termination, buyers should still review balances and ensure records are accurate, as they affect ongoing costs and, where service is recognised, continue with the employee.

Parental leave

The NES provides eligible employees with unpaid parental leave and a right to request an extension, alongside government-funded paid parental leave. A buyer should identify employees who are on, or entitled to take, parental leave, because they carry return-to-work rights and cannot be treated adversely because of their leave. This affects workforce planning and any proposed restructure.

Community service leave

The NES provides for community service leave, most notably jury service and eligible emergency management activities. While usually modest in cost, it is a genuine entitlement that continues with the workforce and should not be overlooked in compliance reviews.

Public holidays

Employees are entitled to be absent on public holidays and, where they work, to the penalty rates set by the applicable award or agreement. Buyers should confirm that public holiday pay and substitution arrangements have been handled correctly, as errors here are a common source of underpayment.

Notice of termination

The NES prescribes minimum periods of notice of termination (s 117 of the Fair Work Act 2009 (Cth)), which increase with length of service, with an additional week for older long-serving employees. Contracts frequently provide for longer notice. In an asset sale, where the seller terminates staff, notice obligations must be met correctly; and any post-completion terminations by the buyer must comply with both the NES and the relevant contract.

Redundancy pay

Redundancy pay under the NES (s 119 of the Fair Work Act 2009 (Cth)) is scaled by length of service. Redundancy is a central acquisition risk: in an asset sale, if the buyer does not offer employment on terms that recognise service, the seller may owe redundancy pay; and if the buyer restructures after completion, it may owe redundancy pay itself. Buyers should model potential redundancy costs before committing to a price.

Superannuation

Employers must pay the Superannuation Guarantee under the Superannuation Guarantee (Administration) Act 1992 (Cth). Superannuation shortfalls are a serious and enduring liability: unpaid or underpaid super attracts the superannuation guarantee charge, interest and administrative penalties, and directors can face personal liability through director penalty notices. Buyers should verify that superannuation has been paid correctly and on time, including on allowances and overtime where required.

Bonuses

Review whether bonuses are discretionary or contractual. Contractual or established bonus arrangements can create binding obligations that continue with employees and must be honoured. Ambiguous bonus clauses are a frequent source of dispute after a change of ownership.

Commissions

Commission arrangements — common for sales staff — should be reviewed for how and when commission is earned, whether it survives termination, and how it is calculated. Poorly drafted commission terms can generate claims for unpaid commission on deals in the pipeline at the time of sale.

Share schemes

Employee share and option schemes can be significantly affected by a change of control. Review the scheme rules for vesting, acceleration and treatment on sale, as these can create substantial value transfers or unexpected obligations on completion.

Deferred remuneration

Deferred remuneration arrangements — such as retention payments, deferred bonuses or long-term incentives — may crystallise on a change of control or continue as ongoing commitments. Identify each arrangement and confirm who bears the cost and when it falls due.

Incentive plans

Broader incentive plans (team incentives, profit-share and similar) should be reviewed for their terms, cost and enforceability. Buyers need to understand which incentives they are committing to continue and which can be varied or discontinued lawfully.

6. Underpayment Risks

Underpayment is one of the most significant and financially damaging employment risks in any acquisition. Because it often results from systemic errors repeated across a workforce over years, liabilities can be large, and — in a share sale — they pass to the buyer with the company. Even in an asset sale, reputational and practical consequences can follow the business. Key sources of underpayment include:

• award compliance — failing to apply the correct modern award, classification or rate;
• enterprise agreement compliance — not meeting the terms of an applicable enterprise agreement;
• minimum wages — paying below the applicable minimum;
• penalty rates — not paying weekend, evening, shift or public holiday penalties correctly;
• allowances — omitting award allowances (tools, travel, first aid, meal and similar);
• overtime — failing to pay overtime for hours worked beyond ordinary hours;
• annualised salaries — flat salaries that do not, on reconciliation, cover all award entitlements (a very common issue);
• casual loading — not paying the correct casual loading, or paying a loading that does not offset relevant entitlements;
• misclassification — classifying employees at the wrong award level;
• payroll errors — systemic configuration errors in payroll systems; and
• superannuation underpayments — unpaid or under-calculated super, which frequently accompanies wage underpayments.

The consequences of underpayment are serious and cumulative. They can include Fair Work Ombudsman investigations and enforcement action, orders for back-pay across the affected workforce, significant civil penalties (including for accessorial liability of individuals involved), and interest on unpaid amounts. Recent reforms have also introduced criminal consequences for intentional wage underpayment in the most serious cases, which buyers should factor into their assessment. Given the pace of change in this area, the current penalty regime should be verified before publication and before relying on it in a transaction.

Example — underpayment discovered after settlement

A café purchaser completes an asset purchase and re-employs the seller’s staff. Months later, a payroll review reveals that weekend and public holiday penalty rates under the Restaurant Industry Award were never applied. Because the buyer continued the same payroll practices, it now faces its own back-pay exposure going forward — and wishes it had commissioned an award reconciliation, and negotiated an underpayment indemnity, before completion.

7. Contractor vs Employee Risks

Businesses frequently engage workers as “independent contractors” who are, in law, employees. Misclassification is a major acquisition risk because it can retrospectively expose the business to unpaid entitlements. Key issues include:

Sham contracting

The Fair Work Act 2009 (Cth) prohibits sham contracting — misrepresenting an employment relationship as an independent contracting arrangement (see, broadly, ss 357–359). Penalties apply, and recent reforms have adjusted the employer’s defence, making it harder to avoid liability. A history of sham contracting is a serious red flag.

How the courts assess contractor status

Whether a worker is an employee or a genuine independent contractor turns on the totality of the relationship. In its 2022 decisions in Construction, Forestry, Maritime, Mining and Energy Union v Personnel Contracting Pty Ltd [2022] HCA 1 and ZG Operations Australia Pty Ltd v Jamsek [2022] HCA 2, the High Court emphasised that where there is a comprehensive written contract, the characterisation of the relationship is determined primarily by the rights and obligations set out in that contract — not simply by how the parties later conducted themselves. This makes the terms of contractor agreements even more important to review during due diligence, while the substance of the arrangement still matters where the contract is incomplete or a sham. (As this is a developing area, the current state of the law and any subsequent legislative change should be verified before publication.)

Employee-like workers

Recent reforms have introduced protections for certain “employee-like” workers, particularly in the gig economy and road transport sectors, allowing minimum standards to be set for some workers who are not traditional employees. Buyers in affected industries should assess whether these provisions apply to the target’s workforce.

Potential liabilities from misclassification

If contractors are later found to be employees, the business can be exposed to a range of retrospective liabilities, including:

• unpaid leave entitlements (annual, personal and long service leave);
• unpaid superannuation;
• PAYG withholding obligations;
• payroll tax;
• workers compensation coverage and premium adjustments; and
• award-based entitlements such as penalty rates and allowances.

Example — contractors reclassified as employees

A logistics business engages a group of drivers as “contractors” who work set shifts, wear the company uniform and use company systems. After completion, several claim they were employees. If that is established, the buyer (in a share sale) faces backdated leave, superannuation and possibly award entitlements — a liability that careful due diligence and a specific indemnity could have addressed.

8. Casual Employment Risks

Casual employment is another area of significant, and frequently changing, risk. The main issues are:

Misclassification and “permanent casual” claims

A worker engaged and paid as a casual may, in substance, be a permanent employee if their work is regular, systematic and ongoing with a firm advance commitment to continuing work. Such “permanent casual” situations can give rise to claims for entitlements (such as leave) that casuals do not receive, notwithstanding that casual loading has been paid.

Casual conversion

Eligible casual employees may have a right to move to permanent employment. The legislative framework for casual conversion — including the statutory definition of a casual employee and the process by which conversion or “employee choice” occurs — has been substantially reshaped by recent reforms. Buyers should confirm the target’s compliance with current casual definition, notification and conversion obligations.

Recent legislative reforms

The casual employment landscape was significantly altered by the recent “Closing Loopholes” reforms and by the High Court’s decision in WorkPac Pty Ltd v Rossato [2021] HCA 23, which addressed the characterisation of casual employment and the interaction between casual loading and other entitlements. Because this area continues to evolve, the precise current position on the casual definition, conversion pathways and loading offset should be verified before relying on it in a transaction or in publication.

9. Modern Awards and Enterprise Agreements

Modern awards and enterprise agreements set minimum terms and conditions above the NES, and getting them wrong is a leading cause of underpayment and dispute. Buyers should understand:

Award coverage

Most employees are covered by a modern award, which sets minimum rates, classifications, penalties, overtime and allowances for their industry or occupation. A buyer must confirm which awards apply, that employees are correctly classified, and that pay practices meet award minimums.

Enterprise agreements

An enterprise agreement is a collective agreement approved by the Fair Work Commission that applies in place of the relevant award (while still meeting the better-off-overall test). Enterprise agreements are critically important in acquisitions because, under the transfer of business rules, an agreement can transfer to a new employer along with transferring employees — binding a buyer that may not have negotiated or intended it. Buyers must identify every enterprise agreement in force and understand its terms, nominal expiry and coverage.

Individual flexibility arrangements

Awards and enterprise agreements permit individual flexibility arrangements (IFAs), which vary the application of certain terms for individual employees. Review any IFAs to confirm they were validly made and that employees remain better off overall.

Common mistakes and interaction with contracts

A frequent error is drafting employment contracts as though the award does not exist — for example, setting a flat salary without confirming it satisfies all award entitlements once penalties, overtime and allowances are counted. A contract cannot displace the underlying award or enterprise agreement; the award floor always applies. Buyers should check that contracts and industrial instruments work together correctly.

10. Transfer of Business Rules

The transfer of business provisions in Part 2-8 of the Fair Work Act 2009 (Cth) are the most important — and most misunderstood — employment rules in an asset sale. They can compel a buyer to recognise prior service and to be bound by the seller’s industrial instruments, even where the buyer would prefer a clean start.

When a transfer of business occurs

Broadly, a transfer of business occurs where: an employee’s employment with the old employer ends; within three months the employee becomes employed by the new employer; the employee performs the same or substantially the same work; and there is a “connection” between the old and new employer. That connection can arise through a transfer of assets, an outsourcing or insourcing arrangement, or because the employers are associated entities.

Transfer of instruments and recognition of service

Where a transfer of business occurs, “transferable instruments” — such as enterprise agreements, certain workplace determinations and IFAs — can carry across and continue to cover transferring employees in the new business. In addition, the buyer must generally recognise the employee’s prior service for the purpose of NES entitlements. This has direct financial consequences:

• recognition of leave — accrued personal/carer’s leave and continuity for annual leave and long service leave purposes generally carry across;
• recognition of service — length of service is preserved, affecting notice, redundancy and long service leave; and
• recognition for redundancy — where service is recognised, past service counts towards future redundancy pay the buyer may owe.

When service is not recognised

For some entitlements, a non-associated new employer can decline to recognise prior service if it tells the employee in writing before employment starts that prior service will not be recognised (this applies to annual leave and, in limited circumstances, redundancy and unfair dismissal qualifying periods — but not, for example, to long service leave, which is governed by separate State and Territory laws). Where the old and new employers are associated entities, however, service must be recognised and this option is not available. The precise operation of these rules is technical, and legal advice should be obtained on the specific facts.

Practical examples

Example — associated entities and recognition of service

A group restructures by moving staff from Subsidiary A to Subsidiary B before selling Subsidiary B. Because A and B are associated entities, the employees’ prior service must be recognised. When the buyer later restructures, those employees’ full service — including their years with Subsidiary A — counts towards redundancy pay.

Example — asset sale with re-employment

A purchaser buys the assets of a manufacturing business and offers employment to most of the seller’s staff, who perform the same work. This is a transfer of business. The seller’s enterprise agreement transfers with the employees and binds the buyer, and prior service is recognised for leave and redundancy — outcomes the buyer had not anticipated and which materially affected its labour costs.

11. Existing Employment Disputes

Pending or threatened disputes are a direct liability and can significantly affect valuation, because they carry uncertain cost, management distraction and reputational risk. In a share sale, they pass to the buyer with the company; even in an asset sale, some claims can follow the business or the individuals involved. A buyer should investigate whether there are any:

• unfair dismissal claims;
• general protections (adverse action) claims;
• discrimination complaints;
• stop-bullying applications;
• workers compensation disputes;
• sexual harassment claims;
• wage theft or underpayment investigations;
• Fair Work Ombudsman investigations;
• Australian Human Rights Commission (or State equivalent) complaints;
• court or tribunal proceedings; and
• union disputes or industrial action.

Pending litigation affects valuation because it represents a contingent liability of uncertain size and outcome. Buyers should require full disclosure of all claims, investigations and complaints, quantify the likely exposure, and address it through price adjustment, specific indemnities or completion conditions requiring resolution before the deal completes.

12. Work Health and Safety Risks

Work health and safety obligations arise under the harmonised Work Health and Safety Acts (and the separate regimes in Victoria and Western Australia). WHS liabilities can be serious — including significant penalties and, in the gravest cases, prosecution of the business and of officers. Buyers should review:

• outstanding improvement and prohibition notices;
• any current or past prosecutions or enforceable undertakings;
• incident history and recorded near misses;
• the adequacy of safety management systems and procedures;
• training records and competency requirements;
• psychosocial hazards and how they are managed (an area of growing regulatory focus);
• workers compensation premiums and claims experience; and
• return-to-work obligations for injured employees.

WHS due diligence is also personal for buyers who will become officers of the business: officers have a positive duty to exercise due diligence to ensure the business complies with its WHS obligations, and that duty begins immediately on taking control.

13. Key Employees

Much of a business’s value can reside in a small number of people — directors, executives, senior managers, top sales performers, technical specialists and client relationship managers. Losing them shortly after completion can destroy value quickly. Buyers should assess and plan for:

• retention — who is critical, and how likely are they to stay after a change of ownership;
• incentives — retention bonuses, equity or other arrangements to keep key people engaged through transition;
• knowledge transfer — ensuring critical knowledge is documented and not locked in one person’s head;
• restraints — whether enforceable non-compete and non-solicitation clauses protect the business if key people leave; and
• succession planning — depth behind each key role to reduce single-person dependency.

Example — a key employee leaves on completion

A buyer acquires a professional services firm whose revenue is concentrated in relationships held by one senior client manager. That manager resigns days after completion and, without an enforceable restraint, begins servicing former clients. A meaningful share of the goodwill the buyer paid for walks out the door — a risk that could have been managed through retention arrangements and properly drafted restraints identified in due diligence.

14. Employee Retention Risks

Beyond a handful of key people, the broader workforce also poses retention risk. A change of ownership creates uncertainty, and uncertainty drives attrition. To protect workforce stability, buyers should consider:

• managing staff uncertainty proactively rather than letting rumour fill the vacuum;
• the risk of losing talent to competitors during the transition;
• a clear and timely communication strategy for employees;
• retention bonuses or incentives for critical staff;
• issuing new or updated contracts where appropriate; and
• integration planning that gives employees clarity about their roles and future.

15. Redundancy Risks

Redundancies frequently arise in acquisitions — through asset sales where not all staff are offered employment, through mergers where roles are duplicated, or through post-completion restructures. Getting the process wrong exposes a buyer to unfair dismissal and other claims. Buyers should understand:

• when redundancies become necessary — identifying genuine redundancies arising from operational change;
• consultation obligations — modern awards and enterprise agreements require consultation about major workplace change, and failure to consult can undermine a claim that a dismissal was a genuine redundancy;
• redeployment — the obligation to consider whether an affected employee can reasonably be redeployed within the business or an associated entity;
• the small business exemption — businesses with fewer than 15 employees are generally not required to pay NES redundancy pay, though other obligations still apply;
• award and enterprise agreement obligations — which may impose additional redundancy terms above the NES; and
• redundancy calculations — correctly calculating NES redundancy pay by reference to recognised service, including service that transferred under the transfer of business rules.

16. Immigration and Visa Issues

Where the workforce includes visa holders, immigration compliance under the Migration Act 1958 (Cth) becomes a live risk. Employing a person without the right to work — or in breach of visa conditions — exposes the business to penalties. Buyers should review:

• which employees are visa holders and the type of visa held;
• each worker’s work rights and any conditions or restrictions;
• sponsorship obligations the business has undertaken as an approved sponsor;
• the relevant visa subclasses and their requirements; and
• what happens to employer sponsorship on a change of ownership, and whether sponsorship or nominations need to be transferred, re-lodged or renewed.

In an asset sale in particular, a change of employing entity can affect existing sponsorship arrangements, so specialist immigration advice is often warranted where sponsored workers are involved.

17. Privacy and Employee Records

Acquisitions involve the transfer and handling of large volumes of personal information about employees. The Privacy Act 1988 (Cth) governs how personal information is collected, used, disclosed and secured. Key points for buyers:

• Privacy Act obligations apply to the handling of personal information during and after the transaction, including in due diligence.
• The employee records exemption means that, in many cases, an organisation’s handling of its current and former employees’ records in the employment context is exempt from some Privacy Act obligations — but the exemption is limited, does not cover everything (for example, prospective employees or certain uses), and is the subject of ongoing reform proposals, so it should not be over-relied upon.
• Transfer of employee records should be handled lawfully and securely as part of completion.
• Cybersecurity and data security must be assessed, as poor data handling creates both privacy exposure and operational risk.
• Confidential information held about employees and third parties must be protected throughout the process.

Because privacy law in this area is under review, buyers should confirm the current position, particularly regarding the scope of the employee records exemption.

18. Intellectual Property and Confidential Information

A significant part of many businesses’ value lies in intellectual property created by employees and contractors. Buyers must confirm that the business actually owns what it thinks it owns. Review:

• IP ownership clauses in employment and contractor agreements, ensuring IP created in the course of engagement is assigned to the business (this cannot be assumed, particularly for contractors);
• moral rights consents, which address the personal rights of creators that survive assignment;
• confidentiality obligations that protect the business’s know-how during and after employment;
• trade secrets and how they are safeguarded;
• inventions and whether ownership of employee inventions is properly captured; and
• software ownership — a particular risk where developers or contractors created key code without a clear written assignment.

A common gap is that contractors, unlike employees, generally retain ownership of IP they create unless the contract expressly assigns it. Where key IP was developed by contractors, the buyer should verify that valid assignments exist — and require them to be obtained before completion if they do not.

19. Restraint of Trade Issues

Restraints of trade protect a business against key people leaving and then competing or taking clients and staff with them — exactly the scenario that most threatens the goodwill a buyer pays for. Buyers should review:

• non-compete clauses that restrict a departing person from competing for a period and within an area;
• non-solicitation clauses that restrict soliciting clients, suppliers or staff;
• confidentiality clauses that protect sensitive information after departure;
• enforceability — restraints are presumptively void and enforceable only to the extent reasonably necessary to protect a legitimate business interest, so overly broad restraints may fail; and
• senior employees — restraints matter most for the very people whose departure would cause the greatest damage.

Buyers should assess whether existing restraints are likely to be enforceable and, where the protection is critical, put fresh, properly tailored restraints in place as part of the transaction. Note that restraint law is under active policy review, so the enforceability position should be verified as at the date of the transaction.

20. Cultural and Integration Risks

Cultural risk is frequently overlooked, yet it can determine whether an acquisition succeeds. A business can be legally compliant and still lose value if its people are disengaged or its culture is toxic. Buyers should consider:

• the quality and stability of leadership;
• staff turnover trends and what they reveal;
• employee engagement and morale;
• how performance management is handled;
• outstanding grievances and how they have been dealt with;
• any workplace investigations, current or recent;
• psychosocial safety and the presence of psychosocial hazards; and
• how two cultures will integrate where the acquisition combines workforces.

21. Purchase Agreement Protections

Due diligence identifies risk; the sale agreement is where risk is allocated. Lawyers use a familiar toolkit to manage employment exposure, and buyers should ensure each of the following is used appropriately:

• representations and warranties — contractual assurances from the seller (for example, that employees are correctly classified, that there are no undisclosed underpayments, superannuation is paid up to date, and there are no undisclosed claims). A breach gives the buyer a claim for damages;
• disclosure schedules — the seller’s formal disclosures against the warranties, which qualify them; buyers must scrutinise what is disclosed, because a disclosed problem is generally a problem the buyer accepts;
• indemnities — promises to reimburse the buyer dollar-for-dollar for specified liabilities, avoiding the hurdles of a damages claim;
• specific employment indemnities — targeted indemnities for identified risks such as historical underpayments, superannuation shortfalls, contractor misclassification or a particular dispute;
• retention or escrow amounts — part of the price held back or in escrow to meet claims that emerge after completion;
• price adjustments — reducing the price to reflect quantified liabilities such as accrued leave;
• completion conditions — requirements the seller must satisfy before completion, such as paying out entitlements, terminating or transferring employees correctly, resolving a dispute, or providing accurate payroll and employment records; and
• obligations regarding employees and records — express obligations on the seller to deal with staff lawfully (correct notice, entitlements and transfers) and to hand over complete and accurate employment records.

22. Post-Completion Employment Issues

The buyer’s employment obligations do not end at completion — in many ways they begin there. A disciplined post-completion program reduces the risk of inheriting or creating new liabilities. Buyers should:

• issue new employment contracts where required — particularly in an asset sale, where the buyer is a new employer and needs its own compliant contracts;
• confirm recognised service — accurately record each employee’s recognised start date and service history for leave, notice and redundancy purposes;
• review award classifications — confirm every employee is correctly classified and paid at or above the applicable minimum;
• harmonise policies — bring inherited staff onto consistent, up-to-date workplace policies;
• integrate payroll systems — configure payroll correctly to avoid repeating the seller’s errors;
• address WHS issues — rectify outstanding safety matters promptly, given officers’ immediate duties;
• communicate clearly with employees — reduce uncertainty and protect retention;
• retain key staff — implement the retention arrangements planned during due diligence;
• manage any redundancies lawfully — with proper consultation, redeployment consideration and correct payments; and
• conduct a post-completion compliance audit — a structured review of pay, classification, superannuation and records to catch problems early.

Where appropriate, buyers may also set clear performance expectations and, for genuinely new employees, use lawful probation arrangements — bearing in mind that in a transfer of business, prior service is recognised and cannot simply be reset by imposing a new probationary period.

23. Industry-Specific Employment Risks

The intensity and nature of employment risk vary by industry. While the principles in this guide apply across the board, buyers should tailor their due diligence to the sector, for example:

• Construction — heavy award and enterprise agreement coverage, subcontracting chains, security-of-payment and WHS exposure;
• Healthcare — complex awards, shift and penalty arrangements, credentialing, and workforce shortages;
• Hospitality — high casual usage, penalty-rate complexity and a strong record of award underpayment risk;
• Professional services — value concentrated in key people, restraints and client relationships;
• Technology — IP ownership, contractor engagement and equity/incentive schemes;
• Manufacturing — enterprise agreements, shift work, WHS and workers compensation exposure;
• Retail — large casual workforces, award classification and penalty-rate compliance; and
• Labour hire — licensing requirements in several jurisdictions, on-hire arrangements and heightened misclassification and underpayment risk.

24. Common Mistakes Buyers Make

Many employment problems in acquisitions are avoidable. The most common mistakes buyers make include:

• assuming employees automatically transfer (they do not, in an asset sale);
• not reviewing employment contracts, or assuming they are compliant;
• ignoring payroll compliance and award reconciliation;
• missing award coverage or classification issues;
• failing to identify historical underpayments;
• overlooking enterprise agreements that transfer with the business;
• assuming “contractors” are genuine contractors without testing the relationship;
• forgetting long service leave liabilities that accrue quietly over years;
• not reviewing WHS history, notices and claims experience;
• ignoring cultural issues, engagement and turnover;
• not budgeting for redundancy costs; and
• assuming the purchase price already accounts for employment liabilities, without quantifying them or securing warranties and indemnities.

25. Practical Due Diligence Checklist

The following checklist provides a practical framework for a buyer’s employment due diligence. It is presented as text so it can be copied and adapted for each transaction.

Workforce overview

• a complete employee list;
• employment status of each person (permanent, casual, fixed-term, contractor);
• start dates and recognised service;
• positions and reporting lines; and
• salaries and total remuneration.

Contracts

• employment agreements for all categories of staff;
• contractor agreements; and
• executive and senior management contracts.

Payroll

• award and enterprise agreement compliance and classifications;
• superannuation payments and timeliness;
• leave balances (annual, personal, long service, purchased);
• overtime, penalties and allowances; and
• bonus, commission and incentive arrangements.

Compliance

• applicable modern awards;
• enterprise agreements and their expiry;
• workplace policies and procedures;
• WHS systems, notices and records; and
• privacy and data-handling practices.

Disputes

• current and threatened claims;
• investigations (internal and regulatory);
• complaints and grievances; and
• workers compensation claims and history.

Financial liabilities

• accrued leave (including long service leave);
• potential redundancy costs;
• bonuses, commissions and incentives; and
• superannuation shortfalls.

Post-completion planning

• integration plan;
• staff communications strategy;
• key employee retention; and
• payroll and systems transition.

26. Frequently Asked Questions

Do employees automatically transfer when I buy a business?

It depends on the structure. In a share sale, the employer is unchanged, so employees continue automatically. In an asset sale, employees do not transfer automatically — the buyer chooses who to offer employment to — but the transfer of business rules can still require recognition of prior service and can carry an enterprise agreement across.

Do I inherit unpaid wages?

In a share sale, yes — the liability sits in the company you are buying. In an asset sale, the liability generally stays with the seller, but the practical and reputational consequences can follow the business, and ongoing non-compliant practices become your problem going forward. Warranties and indemnities are used to allocate this risk.

What happens to annual leave?

Accrued annual leave continues with employees whose service is recognised, and is otherwise paid out on termination. Buyers should quantify accrued leave and agree who bears it — often through a price adjustment.

Who pays long service leave?

Long service leave accrues under State and Territory law and is often overlooked. Where prior service is recognised, the accrued and future entitlement effectively becomes the buyer’s cost. It should be quantified and addressed in the price or by indemnity.

Can I dismiss employees after settlement?

Only in accordance with the law. Terminations must comply with the NES, the contract, and unfair dismissal and general protections laws, and genuine redundancies require proper consultation and redeployment consideration. Prior recognised service counts, and cannot be reset simply because ownership has changed.

Do I need to offer the same employment conditions?

In an asset sale you are generally free to offer new terms, subject to the award or enterprise agreement floor and the transfer of business rules. However, offering less favourable terms can trigger the seller’s redundancy obligations and affect whether staff accept employment.

What if employees refuse to transfer?

In an asset sale, employees are not obliged to accept the buyer’s offer. If they do not, their employment with the seller ends and the seller must meet notice and any redundancy obligations. This is why the treatment of non-transferring staff should be dealt with clearly in the sale agreement.

Are contractors included?

Contractors are not employees, so they are not covered by the employee transfer rules — but if they are misclassified and are really employees, they carry employee liabilities. Review contractor arrangements carefully and consider whether they need to be re-engaged by the buyer.

What if the seller has underpaid staff?

Quantify the exposure and address it through a price reduction, a specific underpayment indemnity, and (ideally) a completion condition requiring the seller to remediate. In a share sale in particular, the liability will otherwise become yours.

Do enterprise agreements continue after the sale?

They can. Under the transfer of business rules, an enterprise agreement can transfer to a new employer and continue to cover transferring employees. Identify every agreement in force and understand how it will apply after completion.

27. When to Obtain Legal Advice

Legal advice is valuable in any acquisition, but it is particularly important where:

• the transaction involves employees covered by modern awards or enterprise agreements;
• there are pending or threatened employment disputes;
• the business uses contractors or labour hire arrangements;
• redundancies or restructures are anticipated;
• there are key employees whose retention is critical; and
• employment warranties and indemnities are being negotiated.

28. Conclusion

Employment liabilities can materially affect both the value and the ultimate success of a business acquisition. They are often invisible on the surface — accrued long service leave, historical underpayments, misclassified contractors, transferring enterprise agreements, unresolved disputes and dependence on a handful of key people — and they can pass to a buyer whether or not the parties intended it.

The good news is that these risks can almost always be identified and managed. Thorough employment due diligence surfaces the issues; the right transaction structure shapes what transfers; carefully drafted warranties, indemnities, price adjustments and completion conditions allocate the risk; and a disciplined post-completion program prevents inherited problems from becoming the buyer’s own. The buyers who fare best are those who treat the workforce as a core part of due diligence rather than an afterthought.

How OpenLegal can help

At OpenLegal, we advise buyers, investors, directors and founders on the employment dimensions of business acquisitions — from due diligence and transaction structuring to the warranties, indemnities and completion conditions that protect you, and the steps you need to take after completion. If you are considering acquiring a business, speak with us before you sign a business sale agreement or complete the transaction. Getting employment risk right early is far cheaper than fixing it later.

Contact OpenLegal to arrange a consultation. Level 28, 161 Castlereagh Street, Sydney NSW. Visit openlegal.com.au to learn more.

Disclaimer

This article provides general information only and is not legal advice. Employment obligations vary depending on the transaction structure and the specific facts of each matter, and the law in this area changes frequently. Legal authorities and legislative provisions referred to in this article should be verified as current before being relied upon. You should obtain tailored legal advice before making decisions about a business acquisition. Liability limited by a scheme approved under Professional Standards Legislation.

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