What Is A Commission Agreement? (2026 Updated)

Commission can be a great way to grow sales without locking yourself into fixed costs - whether you’re paying a staff member a percentage of revenue, bringing on a contractor to win new clients, or partnering with an affiliate who promotes your products online.

But commission arrangements can also create confusion quickly. What counts as a “sale”? When is commission actually earned? What happens if the customer cancels, asks for a refund, or pays late? And if you’re using commission to incentivise a worker, are they an employee (with employee entitlements) or an independent contractor?

A well-drafted Commission Agreement helps you set expectations early and reduce the risk of disputes later. In this guide, we’ll walk you through what a commission agreement is, when you should use one in Australia, what key clauses to include, and what common traps to avoid in 2026.

What Is A Commission Agreement?

A commission agreement is a contract where you pay someone commission - usually a percentage of sales, revenue, profit, or another measurable outcome - in exchange for them generating that outcome for your business.

Commission is commonly used in sales-driven roles, but it also shows up in areas like recruitment, real estate, marketing, online referrals, and business development.

How Commission Agreements Work In Practice

A typical commission arrangement sets out:

• Who earns commission (for example, an employee sales representative, contractor, consultant, or affiliate)
• What triggers commission (for example, signing a new client, receiving payment from the client, or delivering a completed job)
• How commission is calculated (percentage, fixed amount per sale, tiered rates, bonuses, or a hybrid model)
• When commission is paid (weekly, monthly, after invoices are paid, or at another defined point)

Importantly, a commission agreement shouldn’t just say “you’ll receive 10% commission”. The legal and commercial risk often sits in the detail: what the 10% applies to, when it’s earned, and what adjustments apply if something changes.

Is A Commission Agreement Legally Binding In Australia?

Generally, yes - a commission agreement can be legally binding if it has the usual elements of an enforceable contract (such as offer, acceptance, and an intention to create legal relations).

This is the same underlying concept as any commercial arrangement. If you want a plain-English breakdown of what typically makes an agreement enforceable, what makes a contract legally binding is a helpful reference point.

That said, “legally binding” doesn’t always mean “clear” or “enforceable in the way you expect”. If key terms are vague (for example, “commission is payable on all sales”), you can end up with costly disagreements about what was intended.

When Should You Use A Commission Agreement (And Who Is It For)?

You should consider using a commission agreement whenever:

• someone is expected to generate revenue or leads for your business, and their pay depends (fully or partly) on performance
• you want a clear written record of how commission is earned and calculated
• the arrangement could continue over time, involve ongoing accounts, or include repeat customers
• you want to protect your business against disputes about clawbacks, refunds, cancellations, and timing

Commission agreements are common in both employment and contractor setups - but the legal approach can differ depending on the relationship.

Commission For Employees

If the person earning commission is your employee, commission terms often sit inside the employment contract or in a separate commission schedule/policy referenced by the contract.

Because employees have minimum legal entitlements under the Fair Work framework, the commission structure needs to be set up carefully (particularly if commission forms a large part of “total remuneration”). In many cases, you may want an Employment Contract plus a clear commission clause or attachment, so the overall relationship is properly documented.

Some businesses also use a standalone commission document for employees where the commission model changes from time to time. If that’s you, you’ll want to ensure the documents work together and don’t accidentally contradict each other.

Commission For Contractors (Including Sales Agents)

Independent contractors (including sales agents and consultants) are often paid commission under a services arrangement.

In this context, it’s usually important to document:

• the scope of services (what they are doing to generate sales)
• how they interact with your customers (and whether they can bind you to deals)
• who owns leads, customer data, proposals, and sales materials
• what happens after termination (for example, is commission payable on renewals?)

Depending on your setup, this can sit within a broader Service Agreement with a commission schedule, or a dedicated commission-specific contract.

Commission For Affiliates, Referrers, And Partnerships

If you run an online business (or any business with referral channels), you might pay commission to affiliates or referrers who send traffic or leads your way. This is still a commission arrangement - but it usually needs additional terms around:

• marketing and promotion rules (including what they can and can’t say)
• brand use (logos, product photos, business name)
• tracking and attribution (cookies, unique codes, last-click vs first-click)
• fraud prevention (fake leads, self-referrals, misleading promotion)

The practical lesson here is that “commission” is a payment method - but your agreement should still match the business model and the risk profile of the relationship.

What Should A Commission Agreement Include?

There’s no one-size-fits-all commission agreement, but in 2026 most Australian businesses benefit from covering the following key areas clearly and in writing.

If you want a tailored document built for Australian businesses, a Commission Agreement is usually the cleanest way to record the commission rules without relying on informal emails or inconsistent spreadsheets.

1. The Parties And The Relationship

Start with the basics: who are the parties, and what is the legal relationship?

• Is it an employment relationship or a contractor relationship?
• Is the person acting as your agent (able to represent you) or simply referring leads?
• Are they exclusive to you, or can they work with competitors?

This matters because it affects tax, control, expectations, and how disputes are resolved.

2. How Commission Is Earned (The Trigger Event)

This is often the most important clause in the whole agreement. You want to be very specific about the “trigger” for commission.

Common commission trigger options include:

• On signing: commission is earned when the client signs a contract
• On invoicing: commission is earned when the invoice is issued
• On payment received: commission is earned only after the customer pays you
• On delivery/completion: commission is earned after the service is delivered or the project is completed

Choosing the wrong trigger can cause cash flow issues. For example, paying commission on signing might be risky if customers can later cancel or fail to pay.

3. How Commission Is Calculated

You’ll want to define the commission base and the rate:

• Commission rate: percentage or fixed amount
• Commission base: gross sales, net sales, profit, margin, or revenue excluding GST
• Adjustments: discounts, credits, refunds, chargebacks, shipping, or third-party costs

This is where a lot of “it depends” needs to be turned into something measurable.

4. Payment Timing And Administration

Even when commission is earned, it doesn’t always mean it’s payable immediately. A good agreement sets out:

• the payment frequency (for example, monthly in arrears)
• reporting and reconciliation (how you calculate and confirm commission)
• record-keeping (what data is used and who has access)
• error handling (what happens if commission is miscalculated)

You may also want to align commission payments with your invoicing process. For example, if customers often pay late, having clear invoice payment terms can reduce disputes about whether commission should have been paid yet.

5. Cancellations, Refunds, Clawbacks, And Non-Payment

This is the part that many businesses overlook - until the first refund happens.

Consider spelling out:

• what happens if a customer cancels before delivery
• what happens if you issue a refund (full or partial)
• whether you can claw back commission already paid
• what happens if the customer never pays you
• how long after a sale a clawback can apply

If you sell to consumers, your refunds and returns process also needs to align with the Australian Consumer Law (ACL). This is especially important if you advertise strong “no refund” messaging that might not hold up in practice.

6. Performance, Targets, And Tiered Rates (If You Use Them)

Some businesses use tiered commission rates, accelerators, or bonuses - for example, 5% commission up to $20,000 in monthly sales, then 8% above that amount.

These models can work well, but they need careful drafting so everyone understands:

• what counts toward a target
• whether targets reset each month/quarter/year
• how disputes over attribution are handled (especially in team sales environments)

If you’re designing or reviewing a more complex structure, it can be useful to sense-check your approach against common Australian models for bonus and commission structures.

7. Confidentiality, IP, And Customer Ownership

Commission-based roles often involve access to high-value information: pricing, lead lists, customer contacts, proposals, and internal processes.

Your agreement should address:

• Confidentiality: what information must be kept confidential and for how long
• Intellectual property (IP): who owns sales scripts, templates, pitch decks, and marketing materials created during the relationship
• Customer ownership: whether the customer relationship belongs to your business (usually yes) and what happens when the relationship ends

8. Term, Termination, And Post-Termination Commission

You should be very clear about what happens when the arrangement ends.

Key questions include:

• Can either party terminate, and on what notice?
• Is commission payable on deals that were “in progress” at termination?
• Is commission payable on renewals, extensions, or repeat purchases after termination?
• Do any obligations continue (confidentiality, return of property, non-solicitation)?

This is where a lot of commission disputes arise - because people may assume they are owed commission for a long “tail” of revenue even when the agreement doesn’t clearly say so.

Common Commission Agreement Risks (And How To Avoid Them)

Commission can be commercially powerful, but it tends to magnify misunderstandings. Here are some of the most common risks we see, and how you can reduce them.

Vague Definitions Of “Sale” Or “Revenue”

Commission disputes often start with a simple question: “What exactly is a sale?”

For example, does commission apply to:

• GST-inclusive or GST-exclusive amounts?
• shipping, set-up fees, or ongoing subscriptions?
• discounted deals or bundled packages?
• change requests and variations?

A good agreement defines the commission base and gives worked examples where helpful.

Commission Promises Made In Emails Or Chats

Another common risk is making promises informally (for example, over email, Slack, or text) that don’t match the written agreement.

If your agreement says one thing, but a manager’s email says another, you can end up arguing about what terms apply - and whether a “side promise” created a binding variation.

If you need to change commission rates or rules, it’s often safer to do it in writing in a controlled way (for example, a written variation signed by both parties).

Employee Vs Contractor Misclassification

In Australia, calling someone a “contractor” doesn’t automatically make them one. If you treat them like an employee in practice, you can face legal and tax risks, including underpayment claims and superannuation issues.

Commission-heavy roles are sometimes particularly exposed to this risk, because businesses want the flexibility of a contractor while still controlling the person like an employee.

As a practical step, make sure you match the documents to the real arrangement (and consider getting advice early if you’re not sure).

Not Aligning Commission With Your Customer Contracts

Your commission terms should “fit” with your customer-facing terms.

For example:

• If your customer can cancel within a certain period, what happens to commission paid?
• If your customer contract allows refunds or credits, is commission adjusted?
• If a customer pays late, does the salesperson still get paid on time?

This is why commission agreements often work best when paired with clear customer terms and a consistent invoicing process.

Attribution Disputes (Who Gets The Commission?)

In team environments, attribution can get messy fast - particularly where one person generates the lead, another closes, and another manages the account.

If attribution is likely to be an issue in your business, consider including rules about:

• lead ownership (for example, “first contact” vs “who closes”)
• split commissions
• house accounts
• manager discretion (and any limits on that discretion)

The goal is to reduce “he said / she said” disputes and protect your sales culture.

Key Takeaways

• A Commission Agreement is a contract that sets out how someone earns commission for generating sales, revenue, leads, or other outcomes for your business.
• Commission can apply to employees, contractors, sales agents, affiliates, and referrers - but the agreement should match the relationship and your business model.
• The most important clauses usually cover how commission is earned (the trigger), how it’s calculated (the commission base), and when it’s paid.
• Clear rules for refunds, cancellations, clawbacks, and non-payment can prevent the most common commission disputes.
• Commission arrangements work best when they align with your customer contracts, invoicing process, and (where relevant) your employment documents.
• Getting the structure and wording right early can protect cash flow, support performance incentives, and reduce legal risk as you scale.

If you’d like help putting a commission structure in place or updating an existing commission agreement for 2026, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.