Enterprise Bargaining and Acquisition Strategy in Australia

Enterprise bargaining is sometimes treated as a matter to be addressed by human resources after a transaction has completed. In acquisitions involving an Australian workforce, that approach can be costly.

An enterprise agreement may determine much more than an employee’s base wage. It can regulate allowances, overtime, rostering, consultation, redundancy, redeployment, outsourcing, labour hire, dispute resolution, mobility and the implementation of major workplace change. Collectively, these obligations can affect the target’s operating costs, the purchaser’s integration timetable and the extent to which anticipated transaction synergies can realistically be achieved.

Enterprise bargaining should therefore be treated as a central component of legal due diligence and acquisition strategy. A purchaser must understand not only what an enterprise agreement says, but also:

• which employees and work it covers;
• whether the agreement will remain with the target or transfer to the purchaser;
• whether bargaining for a replacement agreement has commenced;
• whether the workforce is unionised or industrially active;
• whether the agreement constrains restructuring;
• whether the target has complied with its obligations; and
• what lawful pathways are available for varying, replacing or terminating the agreement.

This article examines those issues under the Fair Work Act 2009 (Cth) (FW Act). It reflects the legislation and regulatory framework applicable as at 29 July 2026.

1. Enterprise agreements as transaction instruments

An enterprise agreement is a statutory industrial instrument made between one or more employers and their employees. Depending on the bargaining stream, it may be a single-enterprise agreement or a form of multi-enterprise agreement.

An enterprise agreement does not operate merely as a private contract. It must be approved by the Fair Work Commission (FWC), and contravention of an applicable enterprise agreement may attract statutory consequences under the FW Act.

Before approving an agreement, the FWC must be satisfied that the employees genuinely agreed to it, that the agreement does not unlawfully exclude the National Employment Standards and that the agreement passes the better off overall test, commonly known as the BOOT. The BOOT requires a comparison between the agreement and the relevant modern award, considered across the reasonably foreseeable working arrangements to which the agreement may apply.

Where an enterprise agreement applies to particular employment, the relevant modern award will generally not apply to that employment during the agreement’s operation. The modern award nevertheless remains important as the benchmark for the BOOT, while the National Employment Standards continue to operate as statutory minimum standards.

This means that a purchaser cannot properly assess the target’s employment cost base merely by reviewing modern award classifications or standard-form employment contracts. The enterprise agreement itself, together with its incorporated policies, side arrangements and established practices, must be examined.

2. Approval, genuine agreement and the employee cohort

The integrity of the agreement-making process may also be relevant to acquisition due diligence.

In One Key Workforce Pty Ltd v Construction, Forestry, Mining and Energy Union, the Full Court considered an enterprise agreement made with a small number of employees before the employer deployed a substantially larger workforce across different locations and occupations. The case highlighted the risks associated with agreements made using an employee cohort that does not genuinely represent the employees whom the agreement is intended to cover.

The current FW Act requires the FWC, when determining whether employees genuinely agreed to an agreement, to consider whether the employees who voted had a sufficient interest in its terms and were sufficiently representative of those who would be covered. The legislation expressly refers to One Key Workforce as relevant to that inquiry.

For an acquirer, the existence of an approved agreement does not necessarily eliminate all historical risk. Due diligence should investigate:

• when the agreement was made;
• how many employees voted;
• the classifications and locations of those employees;
• whether the business materially changed after approval;
• whether undertakings were given to secure approval;
• whether there have been disputes about coverage; and
• whether the target is relying on an agreement outside the operational circumstances in which it was made.

This is particularly important where an agreement appears to have been made before a major expansion, restructuring, greenfield operation or outsourcing arrangement.

3. Nominal expiry does not mean actual expiry

A recurring acquisition risk is the assumption that an enterprise agreement ceases to operate on its nominal expiry date.

It does not.

An enterprise agreement generally continues to operate after its nominal expiry date until it is replaced by another agreement or terminated in accordance with the FW Act. The passing of the nominal expiry date may permit bargaining for a replacement agreement and may enliven an application for termination, but it does not itself release the employer from the agreement’s obligations.

Accordingly, a financial model that assumes an expired agreement can be disregarded from completion is likely to be unreliable. Wage rates, redundancy benefits, consultation requirements and other conditions may continue indefinitely unless and until a lawful replacement or termination occurs.

The distinction between an agreement’s nominal expiry date and the end of its legal operation should therefore be expressly reflected in:

• the valuation model;
• employee liability calculations;
• integration planning;
• the purchase agreement warranties;
• any completion conditions; and
• the purchaser’s post-completion bargaining strategy.

4. The transaction structure is critical

The effect of an acquisition on an enterprise agreement depends substantially on how the transaction is structured.

Share acquisitions

In a conventional share acquisition, the purchaser acquires the shares in the target company. The company remains the legal employer before and after completion.

Because the employing entity does not change, the acquisition ordinarily does not involve the termination of employment by an old employer followed by employment with a new employer. The target’s enterprise agreements therefore generally continue to apply in the ordinary way.

The practical result is that a purchaser acquiring the shares in a company ordinarily acquires the company together with its existing industrial framework. A change in ownership does not, by itself, permit the purchaser to disregard or replace the target’s enterprise agreements.

This conclusion follows from the statutory transfer-of-business provisions, which require, among other matters, the termination of employment with an old employer and the employee’s employment by a new employer within three months. Those elements will not ordinarily be present in a pure share sale because the employing company remains unchanged.

Asset and business acquisitions

The position may be different in an asset or business sale where the purchaser offers employment to some or all of the vendor’s employees.

Under section 311 of the FW Act, a transfer of business may occur where:

1. the employee’s employment with the old employer terminates;
2. the employee becomes employed by the new employer within three months;
3. the employee performs substantially the same work for the new employer; and
4. there is the necessary connection between the old and new employers.

The required connection may arise through an arrangement for the beneficial use of assets, outsourcing, insourcing or an association between the employers.

Where the statutory requirements are met, an enterprise agreement that covered the employee in relation to the transferring work may become a transferable instrument. It can then cover the transferring employee and the new employer in relation to that work.

The transfer provisions are employee- and work-specific. They should not be reduced to a general proposition that every enterprise agreement affecting the vendor automatically binds the purchaser in all respects. The transaction structure, the identity of transferring employees, the work they will perform and the connection between the employers must each be analysed.

5. FWC orders concerning transferred instruments

The FWC has power under section 318 of the FW Act to make orders altering the effect of a transferable instrument.

Depending on the circumstances, the FWC may order that:

• a particular transferable instrument will not cover the new employer and transferring employees;
• an enterprise agreement that already covers the new employer will apply to the transferring employees;
• the transferable instrument will cover, or will not cover, particular employees; or
• the instrument’s coverage will otherwise be modified.

In deciding whether to make an order, the FWC may consider the views of the relevant employers, employees and organisations; whether employees would be disadvantaged; the nominal expiry date of the instrument; the effect on productivity; and whether the new employer would incur significant economic disadvantage.

A section 318 strategy may therefore be relevant where a purchaser already has its own enterprise agreement and wants incoming employees to move onto the purchaser’s existing employment framework.

However, an order should not be assumed. The purchaser will generally need evidence addressing employee disadvantage, operational consequences, the parties’ views and the broader statutory considerations. The application should also be planned early enough to align with transaction and employee-communication timetables.

6. Enterprise agreement due diligence

Enterprise agreement due diligence should be both legal and operational. Simply obtaining a copy of the agreement is not sufficient.

Coverage mapping

The purchaser should identify:

• every enterprise agreement, workplace determination, award and other industrial instrument that may apply;
• the employing entity bound by each instrument;
• the employees, classifications, occupations, sites and work covered;
• employees who may be incorrectly treated as award-free or agreement-free;
• whether different instruments apply at different locations; and
• whether any instrument may transfer under Part 2-8 of the FW Act.

Coverage should be tested against what employees actually do, rather than relying solely on job titles or payroll descriptions.

Economic obligations

The purchaser should model the total cost of obligations including:

• current wage rates and scheduled increases;
• classification progression;
• overtime and penalty rates;
• shift allowances;
• annualised wage arrangements;
• bonuses and productivity payments;
• leave benefits exceeding the National Employment Standards;
• superannuation obligations;
• redundancy and retrenchment benefits;
• income protection or insurance contributions;
• travel, meal, tool and site allowances; and
• “no disadvantage”, salary-maintenance or grandfathering provisions.

A wage schedule should also be checked against actual payroll data. The existence of compliant written terms does not establish that employees have been paid correctly.

Operational restrictions

Particular attention should be given to clauses dealing with:

• consultation before major workplace change;
• changes to rosters or ordinary hours;
• redundancy selection;
• redeployment;
• relocation and mobility;
• introduction of new technology;
• outsourcing and contracting;
• use of labour hire;
• workforce ratios or minimum staffing;
• conversion of casual or temporary workers;
• dispute resolution;
• rights of union delegates; and
• restrictions on forced redundancy.

These provisions may affect whether a proposed integration measure can be implemented, how long it will take and whether consultation must occur before a final decision is made.

Bargaining and industrial history

The purchaser should determine whether:

• bargaining has commenced;
• notices of employee representational rights have been issued;
• bargaining representatives have been appointed;
• a majority support determination or scope order has been sought;
• bargaining orders are in force;
• employees have voted on a proposed agreement;
• protected industrial action has been authorised or threatened;
• the FWC is dealing with an agreement-related dispute;
• unions have made written claims or commitments;
• the employer has given informal assurances outside the agreement; or
• there is a history of industrial action, stoppages or access disputes.

An agreement may appear financially manageable when viewed in isolation but present a substantially greater risk if it is approaching renegotiation in a highly organised workplace.

7. Good faith bargaining and acquisition planning

Section 228 of the FW Act prescribes good faith bargaining requirements. Bargaining representatives must, among other things:

• attend and participate in meetings at reasonable times;
• disclose relevant information, other than confidential or commercially sensitive information;
• respond to proposals in a timely way;
• genuinely consider proposals and give reasons for their responses;
• refrain from capricious or unfair conduct that undermines bargaining; and
• recognise and bargain with the other bargaining representatives.

The obligation to bargain in good faith does not require a party to make concessions or reach agreement. That limitation appears expressly in section 228 and is consistent with the reasoning considered in Endeavour Coal Pty Ltd v Association of Professional Engineers, Scientists and Managers, Australia.

For transaction purposes, this has several consequences.

First, an acquirer should not assume that it can immediately dictate a replacement agreement after completion. Bargaining requires a lawful process and genuine engagement with employee representatives.

Secondly, the purchaser should understand any bargaining position adopted by the vendor before completion. Statements, offers, undertakings and draft clauses exchanged during bargaining can influence workforce expectations and the industrial environment inherited by the purchaser.

Thirdly, transaction confidentiality must be managed carefully. The obligation to disclose relevant information does not extend to confidential or commercially sensitive information, but the employer must still navigate consultation, bargaining and disclosure requirements in a manner that does not amount to capricious or unfair conduct.

8. Post-acquisition restructuring

An enterprise agreement can materially constrain the timing and method of restructuring.

A purchaser may intend to consolidate sites, change reporting lines, alter rosters, outsource functions, introduce common technology or remove duplicated positions. Even where the purchaser has a valid commercial rationale, the enterprise agreement may require consultation with affected employees and their representatives before implementation.

A compliant integration plan should therefore identify:

1. whether the proposed change triggers a consultation clause;
2. when consultation must begin;
3. what information must be supplied;
4. whether employee or union representatives may participate;
5. whether alternatives must be considered;
6. whether the agreement imposes additional redundancy or redeployment requirements; and
7. whether a dispute resolution procedure may delay implementation.

Consultation should be genuine. A process commenced only after an irreversible decision has been made may expose the employer to allegations that the consultation obligation was not properly performed.

Where multiple workforces are being combined, immediate harmonisation may not be legally or commercially achievable. A staged integration may be preferable, with existing arrangements preserved while a replacement agreement is negotiated.

9. Varying or replacing an enterprise agreement

The principal mechanisms for changing an existing enterprise agreement are variation, replacement and, in narrower circumstances, termination.

An enterprise agreement cannot ordinarily be rewritten unilaterally by the employer. A variation generally requires an employee approval process and FWC approval. Similarly, a replacement agreement must be negotiated, voted on and approved in accordance with the FW Act.

A purchaser considering a replacement agreement should evaluate:

• the appropriate employee cohort;
• the relevant modern award comparators;
• the cost of passing the BOOT;
• whether different legacy workforces should bargain together;
• whether employees have common interests;
• the role of bargaining representatives;
• the risk of protected industrial action;
• the treatment of accrued or grandfathered benefits; and
• whether transitional arrangements are required.

The commercial objective should not necessarily be to reduce every condition to the statutory minimum. A replacement agreement may be more likely to secure employee approval where it combines operational flexibility with identifiable employee benefits, transparent transition arrangements and credible productivity measures.

10. Terminating agreements after nominal expiry

The decision of the FWC Full Bench in Re Aurizon Operations Ltd and the subsequent Full Court decision in Communications, Electrical, Electronic, Energy, Information, Postal, Plumbing and Allied Services Union of Australia v Aurizon Operations Ltd were highly influential under the former statutory regime.

Under that regime, the FWC could terminate an agreement after its nominal expiry date where termination was not contrary to the public interest and was appropriate in all the circumstances. Aurizon demonstrated that termination could, in some cases, be used to remove legacy restrictions and return employees to the applicable award and statutory safety net.

However, Aurizon should not be presented as stating the current legal test.

Section 226 was materially amended by the Fair Work Legislation Amendment (Secure Jobs, Better Pay) Act 2022 (Cth). Under the current provision, the FWC must be satisfied of one of the specified statutory grounds, including that:

• continued operation of the agreement would be unfair to the employees covered by it;
• the agreement does not, and is not likely to, cover any employees; or
• continued operation would pose a significant threat to the viability of the business, termination would be likely to reduce potential job losses and the required protections concerning termination entitlements are provided.

The FWC must also be satisfied that termination is appropriate in all the circumstances.

The current test is therefore significantly more protective of employees than the framework applied in Aurizon. Termination is no longer properly characterised as a routine post-acquisition method of resetting employment conditions to award minima.

A purchaser should consequently avoid including speculative savings from agreement termination in its base acquisition model. Any potential termination strategy should be treated as contingent, evidence-dependent and legally uncertain.

11. Multi-employer bargaining

The expansion of multi-employer bargaining has added another layer of transaction risk.

The FW Act now contains supported bargaining and single-interest employer bargaining streams. A supported bargaining authorisation may be made where it is appropriate for the relevant employers and employees to bargain together, having regard to matters including their common interests, the prevailing pay and conditions within the relevant industry or sector, and whether the employers have clearly identifiable common interests.

The single-interest employer framework may also permit employees across multiple employers to bargain together where the statutory requirements are met. Relevant considerations include common interests between employers, the nature of their operations and whether the employers are reasonably comparable.

For an acquirer, the practical consequences may include:

• reduced freedom to negotiate business-specific conditions;
• exposure to coordinated claims across an industry or sector;
• bargaining timetables influenced by other employers;
• increased union coordination;
• broader industrial action risks;
• less control over the timing of a replacement agreement; and
• difficulties separating the target from a broader bargaining group.

In a share acquisition, the target’s participation in an existing multi-employer bargaining process will generally continue because the employing entity remains unchanged. In an asset acquisition, the purchaser must consider both the transfer-of-business provisions and whether the relevant employees or operations fall within an existing or proposed multi-employer bargaining framework.

Sector-level industrial intelligence is therefore increasingly important, particularly in industries with comparable employers, government funding, common workforce classifications or historically limited enterprise-level bargaining power.

12. Transaction pricing and contractual protection

Enterprise bargaining risk should be reflected in both valuation and transaction documentation.

Pricing

The purchaser’s financial model should account for:

• scheduled wage increases;
• the cost of enterprise agreement benefits;
• potential backpay exposure;
• redundancy and redeployment costs;
• bargaining-related professional costs;
• possible industrial disruption;
• delays to restructuring;
• employee retention payments; and
• the cost of maintaining parallel employment structures.

Cost synergies should be separated into:

1. synergies available immediately at completion;
2. synergies requiring consultation or operational change;
3. synergies dependent on employee agreement or FWC approval; and
4. speculative synergies dependent on replacement or termination of an enterprise agreement.

Only the first category should ordinarily be treated as legally unconditional.

Warranties and indemnities

The acquisition agreement should be considered for warranties addressing whether:

• all enterprise agreements and industrial instruments have been disclosed;
• the disclosed instruments are the only instruments applying to employees;
• the target has complied with those instruments;
• all wages and entitlements have been paid;
• there are no undisclosed side agreements or assurances;
• no bargaining process has commenced other than as disclosed;
• no industrial action has been threatened or authorised;
• there are no current FWC proceedings or industrial disputes;
• no commitments have been made concerning future wage increases; and
• employee and payroll information supplied to the purchaser is accurate.

Specific indemnities may be appropriate for historical underpayments, enterprise agreement contraventions, payroll errors or undisclosed industrial claims.

Pre-completion covenants

The purchaser may also seek covenants preventing the target from, without consent:

• commencing bargaining;
• issuing a proposed agreement for employee approval;
• varying an existing agreement;
• agreeing to material wage increases;
• changing employment classifications;
• settling significant industrial disputes;
• making material representations to employees or unions; or
• entering side arrangements affecting employment conditions.

Those protections must be drafted and exercised carefully. The purchaser should avoid assuming operational control before completion or interfering with the vendor’s independent legal obligations.

13. Enterprise agreements and merger control

Enterprise bargaining may also intersect with Australian merger regulation, although the relationship requires careful analysis.

Australia’s mandatory and suspensory merger control regime commenced on 1 January 2026. Acquisitions meeting the applicable notification requirements must be notified to the Australian Competition and Consumer Commission (ACCC) and cannot proceed until the statutory process permits completion. The ACCC assesses whether an acquisition would be likely to substantially lessen competition and, where relevant, considers claimed public benefits.

Employment costs and enterprise agreement obligations may influence the commercial attractiveness of a transaction. However, a private reduction in labour costs is not automatically a competition-law efficiency.

The ACCC’s Merger Assessment Guidelines distinguish between efficiencies that improve competition and purely pecuniary gains. To carry material weight, an efficiency should generally be merger-specific, verifiable and capable of improving the merged firm’s ability or incentive to compete. A reduction in input prices produced merely through increased bargaining power is not necessarily treated as an economic efficiency. The ACCC may also consider whether a merger reduces competition on the acquisition side of a market, including competition for important inputs.

Labour can, in principle, be analysed as an input. Accordingly, a merger that materially reduces competition between employers for particular categories of workers may raise different questions from a merger that creates genuine productivity improvements.

The proper competition-law analysis should therefore distinguish between:

• productivity gains arising from improved systems or removal of duplication;
• lower costs resulting in more competitive prices or improved services;
• transfers of value from employees or other input suppliers to the merged firm;
• increased employer bargaining power; and
• broader public benefits capable of substantiation.

The ACCC requires robust evidence for claimed public benefits and may consider the extent to which benefits are passed through to customers or the wider community.

Enterprise bargaining will not determine merger clearance in most transactions. Nevertheless, in concentrated, labour-intensive or highly specialised industries, the employment strategy should be coordinated with the merger analysis rather than treated as an unrelated workstream.

14. A practical acquisition strategy

A disciplined approach can be divided into five stages.

Stage one: identify

The purchaser should identify all industrial instruments, affected employees, relevant awards, bargaining processes and union relationships at an early stage.

Stage two: quantify

The purchaser should translate the legal obligations into financial assumptions, including wage escalation, redundancy exposure, integration delays and compliance liabilities.

Stage three: structure

The transaction team should determine whether a share sale, asset sale or alternative structure produces different transfer-of-business consequences. Where appropriate, the possibility of an application under section 318 should be considered.

Stage four: protect

The acquisition agreement should contain appropriate disclosure requirements, warranties, covenants, conditions and indemnities addressing the identified industrial risks.

Stage five: engage and integrate

The purchaser should adopt a communications and bargaining strategy that complies with consultation obligations, preserves workforce stability and provides a realistic pathway towards the desired operating model.

Conclusion

Enterprise bargaining is not merely an employment-law issue arising after completion. It can influence valuation, transaction structure, regulatory strategy, contractual protection and the timetable for achieving integration benefits.

The most significant legal and commercial conclusions are these:

First, enterprise agreements continue beyond their nominal expiry dates until lawfully replaced or terminated.

Secondly, the transaction structure matters. In a share acquisition, the employing entity and its enterprise agreements ordinarily remain in place. In an asset or business acquisition, the statutory transfer-of-business provisions may cause an enterprise agreement to follow transferring employees and bind the new employer in relation to the transferring work.

Thirdly, post-acquisition restructuring must account for consultation, redundancy, redeployment, rostering, outsourcing and dispute-resolution provisions contained in the applicable agreement.

Fourthly, the modern section 226 termination regime is substantially narrower than the regime considered in Aurizon. A purchaser should not assume that an expired agreement can be terminated merely to obtain lower labour costs or greater flexibility.

Fifthly, multi-employer bargaining may expose a target to sector-wide negotiations and coordinated industrial activity, limiting the purchaser’s ability to develop entirely bespoke employment arrangements.

Finally, workforce savings should not automatically be characterised as merger efficiencies. Private cost reductions, increased buyer power and genuine competition-enhancing efficiencies are distinct concepts under the ACCC’s merger framework.

Effective acquisition strategy therefore requires enterprise agreement issues to be examined early, priced conservatively and integrated with the legal, financial and operational design of the transaction. Where the workforce is material to the value of the business, industrial due diligence is not supplementary to the deal. It is part of the deal itself.