Set-Off Clauses In Employment Contracts And Commercial Agreements

If you run a small business, cash flow is everything. When money is moving in both directions between you and someone else (an employee, contractor, supplier or customer), it’s common to ask a practical question: can we just net this off?

That’s exactly what a set-off clause is designed to help you do. In the right circumstances, it can let you reduce (or “set off”) what you owe someone by what they owe you.

But set-off can be tricky in Australia. The wording matters, the surrounding law matters, and the context matters (especially in employment, where minimum entitlements can’t be signed away and pay can’t be reduced unless the law allows it).

Below, we’ll walk through what a set off clause is, how set off clauses work in employment contracts and commercial agreements, common drafting pitfalls, and practical tips to use set-off clauses in a way that actually helps your business manage risk. This article is general information only and isn’t legal advice.

What Is A Set Off Clause?

A set off clause is a contract term that allows one party to reduce a payment they would otherwise need to make, by subtracting an amount the other party owes them.

In plain terms, it’s a “netting” mechanism. Instead of paying $10,000 and separately chasing $2,000 that you’re owed, set-off aims to let you pay $8,000 (or potentially withhold $2,000) and treat the difference as settled.

How Set-Off Works In Practice

Set-off usually comes up when there are mutual debts (each party owes the other something). For example:

• Employment: you owe wages or a bonus, but the employee owes you money for a clear overpayment or an agreed repayment arrangement (depending on the facts, the contract, and what the Fair Work Act allows).
• Supply agreements: you owe an invoice to a supplier, but the supplier owes you a credit, rebate, or refund for defective stock.
• Service agreements: you owe a contractor for milestones, but the contractor owes you liquidated damages or the cost of rectification (if the contract allows it).

Set-Off vs Deductions vs Withholding

Business owners often use these terms interchangeably, but they can play out differently:

• Set-off is about netting two obligations against each other (you pay the difference).
• Deductions (especially from wages) can be heavily regulated and may require a specific legal basis and, in many cases, the employee’s written authorisation.
• Withholding is usually a contractual remedy where you hold back payment until a dispute is resolved or obligations are met (again, only if the contract permits it). In employment, “withholding” pay can be particularly risky and may be unlawful if it results in an underpayment of minimum entitlements.

The right approach depends on your situation and the agreement you’re using. If you’re already reviewing your contracts generally, it can also be worth checking related payment protections like Set-Off Clauses and how they interact with other remedies.

Why Small Businesses Use Set Off Clauses (And When They’re Useful)

Set off clauses are popular because they can reduce disputes and make payment administration easier. For small businesses, they’re often used to protect cash flow and reduce the time spent chasing debts.

Common benefits include:

• Reducing bad debt risk: if you can legally net amounts, you may be less exposed if the other party stops paying or becomes insolvent.
• Speed and simplicity: netting can be faster than paying in full and then starting recovery action.
• Commercial leverage: set-off can give you a practical lever to resolve disagreements (but it must be used carefully so you don’t trigger a breach).
• Cleaner accounting: fewer “back and forth” transactions can make reconciliation easier.

When Set-Off Clauses Matter Most

Set-off becomes especially important where:

• you have ongoing relationships (regular supply, repeat contractors, ongoing employment);
• payments happen frequently (weekly wages, monthly retainers, rolling invoices);
• there’s a real chance of counterclaims (quality disputes, delays, returned goods, refunds); or
• you’re operating with tight margins and one unpaid amount would materially affect cash flow.

That said, set-off is not a “one clause fixes everything” tool. If you want a set-off clause to be enforceable and commercially workable, it needs to be drafted to suit the agreement and the specific risk you’re trying to manage.

Set Off Clause In Employment Contracts: What You Can (And Can’t) Do

A set-off clause in an employment contract often comes up when there’s an overpayment, an advance, or some other amount you want to recover from an employee.

However, employment is one of the most sensitive areas for set-off in Australia. Even if an employee “agrees”, you can’t contract out of minimum legal entitlements. In many cases, reducing an employee’s pay to recover money will be treated as a deduction, which is only lawful if it fits within the Fair Work Act and any applicable award/enterprise agreement requirements.

Common Employment Scenarios Where Set-Off Is Discussed

• Overpayment of wages (payroll error, duplicated payment, incorrect classification).
• Leave overpayments (for example, annual leave taken in advance where the employee leaves before accruing it).
• Training costs or advances (only in limited circumstances and often controversial).
• Company property not returned (devices, keys, uniforms) - in practice, businesses often need to pursue return of property or recovery as a separate process rather than automatically taking it from wages.
• Damage or loss - this is where employers can get into trouble quickly if they make automatic deductions or “self-assess” the value of the loss.

If you’re putting employment arrangements in place, it’s usually best to have a properly drafted Employment Contract (and then ensure your payroll practices match what the contract says in real life).

Why Employment Set-Off Is More Restricted

In employment, there are overlapping rules that can limit set-off in practice, including:

• Minimum entitlements under the National Employment Standards (NES) and applicable modern awards/enterprise agreements.
• Rules about deductions from pay (these often require the deduction to be authorised in writing and, in many cases, to be principally for the employee’s benefit, with some limited exceptions).
• Final pay timing requirements, which can be award-specific and strict.

As a business owner, the risk is that an overly broad set-off clause is used like a “permission slip” to deduct whatever you think is fair. That can lead to underpayment disputes, Fair Work claims, or allegations that deductions were unlawful.

A Practical Approach: Set-Off For Overpayments (With Guardrails)

Set-off in employment is often most defensible when it’s narrowly used for clear, quantifiable overpayments and repaid in a controlled way (and only in a way that remains lawful and doesn’t take pay below minimum entitlements).

If you’re dealing with an overpayment issue right now, it can also help to understand your options around employee overpayment, because the “right” recovery method depends on how the overpayment happened, the employee’s circumstances, and what your contract/policies say.

In many cases, the safer path is:

• confirm the amount and explain it in writing;
• propose a repayment plan (rather than a one-off large deduction);
• get written agreement where required; and
• ensure the employee still receives at least their minimum lawful entitlements each pay cycle.

Set-Off Clauses And “All-In” Salaries

Some businesses also use set-off language to say a salary “includes” certain entitlements (like overtime, allowances, or penalty rates) and that the salary can be applied towards (or “set off” against) those entitlements.

This is a high-risk area if it’s not structured properly, because a salary arrangement can still result in underpayment if the employee’s award entitlements exceed what they were paid.

If you’re paying above-award or trying to simplify payroll, set-off wording needs to be very carefully drafted and matched to the employee’s actual working patterns, classification, and applicable award terms.

Set-Off Clauses In Commercial Agreements: How They Usually Work

In commercial contracts, set-off clauses are more common and (generally) easier to use than in employment, because parties have more freedom to negotiate risk allocation.

That doesn’t mean “anything goes”. A set-off clause can still cause serious disputes if it’s unclear, too broad, or used aggressively.

Where You’ll Commonly See Set-Off Clauses

• Terms of trade / credit terms: allowing you to set off credits, returns, rebates, or claims against amounts you owe.
• Supply agreements: netting amounts for rejected goods, warranty claims, or agreed chargebacks.
• Service agreements: netting amounts for rectification, re-performance, or service level failures.
• Construction and projects: set-off against progress claims, variations, backcharges, and defects costs (often heavily negotiated).

If you use standard customer or supplier arrangements, set-off is usually built into broader payment and dispute provisions. That’s one reason many businesses choose to formalise the relationship in a tailored Service Agreement rather than relying on informal emails and invoices.

Set-Off Can Be Mutual Or One-Way

A key drafting question is whether set-off is:

• Mutual: either party can set off what they owe against what they’re owed; or
• One-way: only one party (often the customer or principal) can set off.

One-way set-off clauses are common where one party wants stronger leverage (for example, a principal dealing with multiple subcontractors). However, these clauses can be negotiated heavily, and in some situations they can attract scrutiny under unfair contract terms (UCT) rules if the agreement is a standard form contract and the other party is a “small business” under the relevant definitions.

Watch For “No Set-Off” Clauses

Sometimes, you’ll see the opposite: a clause that says payments must be made “without set-off” or “free of deductions”.

This is common where a supplier or contractor wants certainty of payment and wants disputes handled separately. If you sign a “no set-off” clause and later deduct anyway, you may be in breach (even if you feel morally justified).

This is why it’s important to review set-off provisions before a dispute arises, when you still have leverage to negotiate reasonable terms.

How To Draft A Set Off Clause That Actually Helps You

A set off clause shouldn’t just say “we can set off anything we like”. If it’s too vague, it may not work when you need it most (and it may increase the risk of a dispute).

Instead, aim for clarity: what can be set off, when, how, and with what notice.

Key Elements To Consider Including

• Scope: what kinds of amounts can be set off (invoices, overpayments, credits, damages, indemnities, costs)?
• Connection: does the set-off have to relate to the same contract, or can it relate to any dealings between the parties?
• Due and payable: can you only set off amounts that are already due, or can you set off estimated/anticipated losses?
• Process: do you need to provide written notice before setting off?
• Dispute handling: what happens if the other party disputes the set-off (for example, escalation steps or timeframes)?
• Limits: are there caps (especially relevant in employment and consumer-facing contexts)?

Be Careful With “Cross-Contract” Set-Off

Some clauses try to allow set-off across multiple contracts (for example, you set off an amount owed under Contract A against an invoice under Contract B).

This can be commercially useful if you have multiple engagements running at once, but it can also be a flashpoint for disputes because the other party may argue you’re withholding payment under one contract for an unrelated issue.

If you want cross-contract set-off, it should be drafted deliberately and consistently across your documentation (not hidden in one document and missing from others).

Make Sure The Set-Off Clause Aligns With Your Payment Mechanics

A set-off clause often interacts with:

• invoice and payment timeframes;
• credit note processes;
• quality assurance / acceptance steps;
• termination and final account provisions; and
• security or guarantees (if any).

If your contract has a tight payment clause but a vague set-off clause, you may end up with an argument about whether you were entitled to delay payment or reduce it. A clean, consistent contract structure reduces that risk.

Employment Contracts Need Extra Care

If you’re considering set-off language for payroll, keep it narrow and practical. In many cases, what you really need is:

• a clear overpayment recovery mechanism;
• clear authority around repayments (where lawful); and
• well-documented pay components (salary, allowances, bonuses, commissions, reimbursement rules).

It can also help to have policies that align with your contracts, particularly where employees use company property or incur expenses. Depending on your setup, a broader employment documentation suite may be appropriate.

Common Mistakes With Set Off Clauses (And How To Avoid Them)

Set-off disputes often happen because a clause is used as a blunt tool in a stressful moment. Most issues are avoidable with clearer drafting and better internal processes.

1. Using Set-Off As A Substitute For A Dispute Process

If there’s a genuine dispute about performance or quality, set-off can escalate the conflict quickly.

Where possible, your agreement should include a simple dispute process (for example: notice, meeting within X days, escalation, then mediation). Set-off can still exist, but the process should encourage early communication rather than surprise deductions.

2. Trying To Set Off Unliquidated Or Unproven Claims

In commercial agreements, parties often try to set off “estimated losses” or “anticipated damages”. This is where you’ll see arguments about whether the amount was actually owed or whether it was just an allegation.

A more workable approach is to:

• limit set-off to amounts that are agreed or finally determined; or
• allow temporary withholding only where there’s a clear contractual basis and a defined resolution pathway.

3. Overly Broad Employment Set-Off Wording

A clause that says you can deduct “any losses” from wages is a red flag.

Even if the intention is to protect the business, broad deductions can create underpayment risk and may not be enforceable or lawful in practice. If you’re trying to manage things like property return or expense claims, it’s often better to deal with those topics in dedicated provisions rather than relying on a broad set-off statement.

4. Forgetting About Unfair Contract Terms (UCT) Risk

If you use standard form agreements with other small businesses, set-off clauses that are one-sided, non-negotiable, or allow you to set off for almost anything (with no notice) can increase UCT risk.

This doesn’t mean you can’t protect yourself. It just means the clause should be balanced and transparent, and the agreement should include reasonable processes.

5. Not Matching The Clause To Your Real-World Process

A set-off clause only helps if your team can apply it consistently.

For example, if your contract requires written notice before set-off, but your accounts team applies set-off informally with no record, you may end up with an avoidable dispute about whether the set-off was valid.

Good contract drafting goes hand-in-hand with a simple internal workflow: who approves set-off, what evidence is required, and how it’s documented.

Key Takeaways

• A set off clause is a contract term that lets you reduce what you owe someone by what they owe you, so you pay (or receive) the net amount.
• Set off clauses can be very useful for small businesses managing cash flow, especially in ongoing relationships with regular invoicing or payments.
• Employment set-off is more restricted than commercial set-off. A clause in an employment contract won’t override minimum entitlements or make an otherwise unlawful wage deduction lawful.
• Commercial set-off clauses should clearly define scope, process, notice requirements, and how disputes will be handled to avoid payment standoffs.
• Overly broad set-off clauses can backfire (including under unfair contract terms risk in some standard form small business contracts).
• Practical, tailored drafting usually works better than “catch-all” wording, especially when you need the clause to stand up in a real dispute.

If you’d like help drafting or reviewing a set off clause for your employment contracts or commercial agreements, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.