Commission-Based Contracts In NZ: What Business Owners Need To Know

Commission-based pay can be a great way to grow sales without locking your business into fixed labour costs. But if you don’t set it up properly, it can also lead to disputes, unhappy team members, messy payroll issues, and (in the worst case) legal risk that outweighs the upside.

In New Zealand, commission-based contracts usually sit inside an employment agreement (for employees) or a contractor agreement (for independent contractors). Either way, the key is clarity: how commission is earned, calculated, paid, and what happens when things change.

Below, we’ll walk you through what a commission-based contract is, what you need to include, the legal risks to watch for, and how to set your business up with a structure that actually supports growth.

What Is A Commission-Based Contract (And When Should You Use One)?

A commission-based contract is an arrangement where some (or all) of a person’s pay is linked to performance-most commonly sales revenue, profit, margin, or completed deals.

From a small business owner’s perspective, commission can help you:

• Incentivise sales behaviour (especially in roles with direct customer conversion).
• Control fixed overheads by aligning pay with income generated.
• Reward high performers in a transparent, scalable way.
• Recruit competitively when you can’t always match a big base salary.

Common NZ roles where commission-based contracts come up include:

• Sales representatives and business development managers
• Recruitment and placement roles
• Real-estate-adjacent service businesses (lead generation, marketing, referral networks)
• Account managers and customer success roles with upsell targets
• Franchise or licensing sales teams

That said, commission structures aren’t “set and forget”. The more your business changes (new products, pricing, discounting, refunds, team changes), the more important it is that your commission terms are drafted to handle real-life scenarios.

Employee Vs Contractor: Which Type Of Commission Arrangement Are You Setting Up?

Before you draft commission-based contracts, you’ll want to get clear on whether the person is genuinely an employee or an independent contractor. This matters because:

• employees are covered by employment laws and minimum entitlements
• contractors typically negotiate commercial terms and manage their own tax/ACC arrangements
• getting the classification wrong can create backpay and compliance risk

If you’re engaging someone as an employee, commission is usually written into an Employment Contract as part of the remuneration clause (or as a separate commission schedule incorporated into the agreement).

If you’re engaging an independent contractor, commission (or success fees) should be set out in a tailored Contractor Agreement. Even then, the relationship must match the contract in practice (for example, control, integration into your business, and independence are all relevant).

Why This Distinction Matters For Commission

Commission-based arrangements can blur the lines between “employee” and “contractor”, especially if someone is working full-time for you, using your systems, representing your brand, and being managed like staff. If they’re really an employee in substance, calling them a contractor won’t necessarily protect your business.

If you’re not sure which category applies, it’s worth getting advice early-fixing classification issues later is usually far more expensive than setting it up properly from day one.

How Commission-Based Contracts Should Be Structured In NZ

The best commission-based contracts aren’t the ones with the fanciest percentages-they’re the ones that remove ambiguity. When your commission terms are clear, you reduce disputes, protect cashflow, and make it easier to manage performance conversations.

Here are the key building blocks most NZ businesses should consider.

1) Define Exactly What “Commission” Is

Your contract should spell out what the commission is based on, for example:

• Revenue (gross sales amount)
• Profit (net profit after costs)
• Margin (e.g. gross margin percentage)
• Units sold, subscriptions started, or deals closed
• Collections (only paid once the client actually pays you)

Be careful with vague phrases like “commission on sales”. In practice, disputes usually come from edge cases-discounts, refunds, partial payments, delayed invoices, or bundled products.

2) Set Out When Commission Is Earned (The Trigger Event)

One of the most important clauses is the “trigger” for earning commission. Common triggers include:

• when the customer signs a contract
• when the customer pays the invoice (or when payment clears)
• when the product/service is delivered
• when the customer’s cancellation period ends

There’s no one-size-fits-all answer here. If your business has refunds, chargebacks, or customers who pay late, a “paid invoice” trigger can protect your cashflow better than a “signed deal” trigger.

3) Explain How Commission Is Calculated (Including GST)

Commission clauses should make it easy for someone to calculate their pay without guessing. That usually means defining:

• the commission rate (or tiered rates)
• what amounts are included/excluded (delivery fees, setup fees, add-ons)
• whether commission is calculated inclusive or exclusive of GST
• how discounts impact commission
• how returns, refunds, or credits impact commission (including clawbacks)

Tip: if you allow your team to apply discretionary discounts, you’ll want your commission model and your discount policy to “talk to each other”-otherwise you can accidentally incentivise heavy discounting just to close deals.

4) Confirm When Commission Is Paid (Pay Cycle + Reporting)

Even if commission is earned at one point, you can agree it’s paid later (for example, monthly in arrears once you’ve reconciled invoices and refunds). Your commission-based contracts should cover:

• commission pay frequency (weekly/fortnightly/monthly)
• cut-off dates for each commission period
• how you’ll provide commission statements (and what detail is included)
• the process for raising disputes about calculations (including timeframes)

From a business owner’s perspective, clear reporting reduces “he said/she said” situations and keeps your payroll process predictable.

5) Handle Team Sales, Shared Accounts, And Split Commissions

If more than one person can touch a deal (lead gen, closer, account manager, renewal specialist), you need rules for split commissions. If you don’t write it down, you’ll end up mediating internal conflict-usually at the exact time you’re trying to grow.

Common approaches include:

• fixed split percentages by role
• split based on stage ownership (lead vs close)
• house accounts vs personal accounts (and what happens when accounts are reassigned)

Key Legal Issues To Watch With Commission-Based Pay

Commission-based contracts are commercial tools-but they still sit within NZ legal obligations. The risks tend to appear when a commission plan is:

• unclear or inconsistently applied
• changed without proper process
• structured in a way that conflicts with minimum entitlements
• not aligned with how you market or sell to customers

Minimum Entitlements And “Commission-Only” Arrangements

If the person is an employee, you generally can’t contract out of minimum employment standards. For many businesses, the practical lesson is: if you’re paying commission-only (or a very low base), you need to be very careful that pay arrangements still meet minimum legal requirements across the pay period, including minimum wage compliance and any relevant obligations around recording hours and wages.

If you’re thinking about a commission-only model, it’s worth getting tailored advice so the structure aligns with your role expectations, hours of work, and the way you measure performance.

Misleading Incentives And Sales Conduct

If your commission structure indirectly encourages misleading sales conduct, your business can wear the legal and reputational fallout. In New Zealand, sales and advertising practices are regulated, including under the Fair Trading Act 1986. That’s why it’s smart to align commission incentives with compliant sales behaviour (not just raw volume).

Privacy And Tracking Sales Performance

Most commission plans rely on tracking leads, calls, conversions, and customer accounts. If you’re collecting personal information about customers (or monitoring staff activity using systems), you should consider your privacy compliance under the Privacy Act 2020. In many cases, having a clear Privacy Policy and internal rules around system access and monitoring will support a smoother rollout.

Restraints And Protecting Customer Relationships

If you’re investing in training, handing over warm leads, or giving access to pricing and customer lists, you may want to protect that value through well-drafted restraint clauses (where enforceable). Commission-heavy roles often carry higher risk here because the person’s value is directly tied to relationships and pipelines.

If restraints are relevant, they should be drafted carefully to match the role and business interest you’re protecting-generic “one size fits all” restraints are often hard to enforce.

What Clauses Should You Include In Commission-Based Contracts?

A strong commission-based contract usually includes more than just the commission percentage. The “support” clauses matter because they deal with the messy parts of real business.

Depending on your setup, you may want to include clauses addressing:

Commission Plan Status And Variation Rights

Businesses evolve-pricing changes, products change, and targets change. But changing commission is a common flashpoint.

Your contract should be clear about:

• whether the commission plan is contractual or a policy you can update
• how changes will be communicated
• when changes take effect (and whether they apply to pipeline deals)
• any consultation steps (especially for employees)

If you’re dealing with employees, you should be cautious about “we can change this anytime” clauses. In employment relationships, process and good faith matter, and in many cases you’ll need genuine consultation and agreement to vary commission terms, so it’s better to build a practical variation mechanism than rely on broad discretion.

Leads, Pipelines, And Ownership Of Accounts

To avoid internal disputes, clarify:

• how leads are assigned
• what counts as “originated” by the salesperson vs allocated by the business
• what happens when a lead goes cold then restarts later
• who owns the account relationship (and what happens on internal transfer)

Refunds, Chargebacks, And Clawbacks

If your customers can refund, cancel, downgrade, or charge back, you’ll want to address whether:

• commission is reversed if revenue is reversed
• clawbacks are immediate or offset against future commission
• there is a time limit (e.g. clawbacks only within 30/60/90 days)

This is one of those areas where a quick clause can save a big argument later.

Termination, Notice, And Final Commission Payments

When someone leaves, commission questions come up fast: What about deals in the pipeline? What about invoices not yet paid? What about renewals and trailing commission?

Your contract should cover:

• whether commission is payable after termination (and on what conditions)
• how you handle “in progress” deals
• timing for final reconciliation and payment
• what happens if the employee is paid payment in lieu of notice (and how that interacts with commission periods)

Clarity here protects you as the business owner and avoids disputes during an already sensitive time.

Confidentiality And Intellectual Property

Commission-based roles often involve sales scripts, proposals, pricing models, and customer lists. Your contract should include confidentiality terms and (where relevant) IP ownership language-especially if the person is producing materials your business relies on.

Dispute Resolution (So Issues Don’t Escalate)

Even well-run commission plans sometimes end in disagreements about calculations. A dispute resolution clause can require the parties to raise issues promptly and attempt to resolve them before things escalate.

If your commission plan is complex, it can also be helpful to define what records will be used to settle calculations (for example, your CRM records, invoice system, or written approvals).

Practical Steps To Implement Commission-Based Contracts In Your Business

Once you’ve decided commission is right for the role, you’ll want an implementation process that’s consistent and defensible.

Step 1: Map Your Sales Process First

Before drafting terms, document how a deal moves through your business. For example:

• Where do leads come from?
• Who qualifies them?
• Who closes?
• What systems record the deal stage?
• When do you invoice and collect payment?

A commission plan should fit your actual sales reality-otherwise it creates loopholes and confusion.

Step 2: Decide What Behaviours You Want To Incentivise

If you only reward “closing”, you may encourage fast deals that churn or refund. If you reward “paid revenue”, you may encourage better-quality deals but slow down motivation if your payment cycles are long.

Many businesses use a mix, such as:

• a small amount on signing
• a larger amount on payment
• a retention bonus after a set period

Step 3: Put The Commission Terms In Writing (And Keep Them In One Source Of Truth)

Commission-based contracts should be written clearly and kept consistent across:

• the employment/contractor agreement
• any commission plan document or schedule
• offer letters and role ads
• internal policies and payroll practices

If you’re also scaling the business with new team members or investors, it can help to tidy up your core governance documents too, like a Company Constitution or Shareholders Agreement, so the business is structured for growth and key decision-making is clear.

Step 4: Train Your Managers On How To Apply The Plan

A commission plan that’s applied inconsistently is a fast track to disputes. Make sure anyone approving discounts, reallocating accounts, or signing off commission understands the rules and applies them consistently.

Step 5: Review The Plan Regularly (But Change It Carefully)

Commission terms often need adjusting as your product, pricing, and market evolve. The trick is to review regularly, while also making changes in a structured way that’s fair and legally sound.

If you’re unsure how to update commission terms without creating risk, it’s worth getting advice before you announce changes-especially if people’s earnings will be impacted.

Key Takeaways

• Commission-based contracts can help you grow sales and control fixed costs, but they need to be drafted clearly to avoid disputes.
• Start by confirming whether the person is an employee or a contractor, because the legal obligations (and risks) are very different.
• Strong commission terms clearly define the trigger for earning commission, the calculation method (including GST/discounts), and the payment schedule.
• Your contract should address real-life scenarios like split commissions, refunds and clawbacks, pipeline deals, and what happens when someone leaves.
• Commission structures should align with compliant sales practices (including under the Fair Trading Act 1986) and your privacy obligations under the Privacy Act 2020.
• Changing commission plans can be risky if done poorly-build a sensible variation process, consult properly (and document changes), and apply the plan consistently.

Note: This article is general information only and isn’t legal or tax advice. Tax, GST and ACC treatment can vary depending on your business and whether the worker is an employee or a contractor, so it’s worth getting tailored advice for your situation.

If you’d like help drafting or reviewing commission-based contracts for your business, you can reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.