Third-Party Payments: Legal Risks, Compliance And Practical Steps

Getting paid should be the easy part of running a small business. But in practice, payments don’t always come directly from your customer or client.

Maybe a parent pays for their child’s program. A head office pays for a franchisee. A building contractor’s client pays your invoice through a financier. Or a customer asks if their partner can pay from a different account.

These are all examples of third party payments. While they can be completely legitimate (and sometimes necessary), they can also create legal and commercial risks if you don’t handle them carefully.

Below, we’ll walk through what third party payment arrangements look like in the real world, the main legal risk areas for Australian small businesses, and the practical steps you can take to protect your business while still making it easy for customers to pay you.

What Is A Third Party Payment (And Why Does It Matter)?

A third party payment is where the money for your invoice, purchase or fees is paid by someone who is not the contracting party (or not the person you expected to pay).

In other words:

• Your customer/client is the person you have the agreement with (the one receiving the goods/services).
• The third party payer is the person or entity that actually pays you.

This matters because the law (and your contracts) usually assume the payer and the customer are the same person. When they’re not, you may have to deal with questions like:

• Who is legally responsible if there’s a dispute or chargeback?
• Are you allowed to accept money from a person who isn’t a party to your contract?
• Could this trigger fraud, scam or identity red flags?
• Are you collecting or sharing personal information you shouldn’t?
• Have you documented consent clearly enough to defend your position later?

When handled properly, third party payments can reduce friction and help you close deals faster. When handled poorly, they can lead to unpaid invoices, platform issues, and time-consuming disputes.

Common Third Party Payment Scenarios For Small Businesses

Third party payments show up across many industries - it’s not just a “finance” or “big company” issue. Here are some common scenarios we see for Australian small businesses.

1. Family Or Personal Relationships

• A spouse pays a partner’s invoice.
• A parent pays a student’s tuition or coaching fees.
• A friend pays a deposit “to help out”, then the relationship breaks down.

2. Corporate Groups And Shared Services

• A head company pays invoices on behalf of a subsidiary.
• A “management company” pays suppliers for multiple business locations.
• A parent entity pays for a project carried out by a related entity.

3. Builders, Trades And Project Supply Chains

• A principal pays a subcontractor directly instead of paying the contractor first.
• A property owner pays a supplier that was engaged by the builder.

4. Funders And Financiers

• A customer’s finance provider pays you directly for goods (e.g. equipment, vehicles, fit-outs).
• A third party platform releases funds after milestones are met.

5. Payment Authorisation And “Someone Else Will Pay” Requests

Sometimes a customer will say they can’t pay, but another person will do it later. This is where businesses can get caught out if they release goods or start work without confirming the payment arrangement in writing.

Even if the third party payment is genuine, you still want to manage it deliberately (not casually) because your risks increase when the payer and the customer are different people.

The Key Legal Risks When Accepting Third Party Payments

There’s no single law that says third party payments are illegal. In many cases, accepting them is completely fine.

The risk is that third party payments can create uncertainty. And uncertainty is where disputes and compliance problems start.

Fraud, Scams, Chargebacks And “Reversal” Risk

Third party payments can be a red flag for scams because they’re commonly used in:

• stolen card or account scenarios
• “overpayment” scams (where someone pays too much and asks you to refund the difference)
• identity fraud (payer claims they didn’t authorise the transaction)

Even if you provided the service in good faith, you could be left out of pocket if:

• the third party initiates a chargeback through their bank/card provider
• the payment is reversed
• your payment provider freezes funds while investigating

This is one reason your written terms (and your internal process) matter so much - you want a clear paper trail showing who authorised the payment and what it related to.

Contract Confusion: Who Owes The Money And Who Can Enforce The Deal?

If your agreement is with Customer A, but Payer B pays you, it’s still Customer A who is usually responsible for performance under the contract.

However, disputes can arise if the third party later says things like:

• “I paid you, so I’m entitled to a refund (not them).”
• “I paid you on the condition you would deliver X, and you didn’t.”
• “I never agreed to your cancellation fee.”

This is why it helps to have your customer-facing documents updated so they clearly deal with third party payments, refunds and authority.

For many product and service businesses, this is often built into Terms of Trade (or client terms) so you’re not negotiating these basics every time an unusual payment comes in.

Privacy And Data Handling (Especially If You Collect Payer Details)

Third party payment arrangements often involve you receiving personal information about someone who isn’t your direct customer (for example, a payer’s card details, billing address, email address, or ID documents).

Even if you’re only collecting minimal information, you should think about:

• what information you collect from the third-party payer
• why you collect it
• how you store it
• who you share it with
• how long you keep it for

If you’re collecting personal information in connection with payments (which is very common), having a fit-for-purpose Privacy Policy can help set expectations and reduce complaints.

And if you’re ever tempted to keep card details “to make it easier next time”, be careful - there are legal and compliance obligations around storing credit card details, and you’ll want a process that’s secure and defensible.

Direct Debit Authority And Ongoing Payment Arrangements

A lot of third party payments happen on a recurring basis - for example, a related entity pays monthly, or a family member pays a subscription on someone else’s behalf.

If you’re using direct debit, you should ensure you have proper authority from the account holder and that your process aligns with your payment provider’s requirements and the relevant Australian consumer protections that may apply (for example, the ePayments Code, if your provider is a subscriber). It’s also important that your cancellation/refund process is clear. This is where the rules and standards that apply to direct debit setups can become very relevant. You can read more in our guide on direct debit laws.

AML/CTF “Red Flags” And Reputational Risk

Not every small business is regulated under Australia’s anti-money laundering and counter-terrorism financing (AML/CTF) laws (these obligations generally apply to specific “reporting entities” and designated services). However, even if you’re not formally covered, third party payments can still create practical problems if:

• your bank flags unusual deposits
• a payment processor pauses transactions
• you’re asked to explain the source of funds

This is less about “doing something wrong” and more about being ready to show that your transactions are legitimate, documented and connected to real goods/services.

Security Interests And “Who Owns The Asset?” Issues (For Higher-Value Goods)

If you sell higher-value goods (or equipment) and someone else pays, ownership and security interests can get complicated.

For example, if a financier pays you directly, the financier may have (or require) a security interest in the goods under their financing documents, and those interests can be registered. If a dispute later arises, or you’re trying to unwind a transaction, it’s important to understand what has been agreed between the parties and what (if anything) has been registered against the goods.

Understanding how registrations work (and when to check them) can be important in certain industries. In some situations, businesses will use the Personal Property Securities Register (PPSR) as part of their risk management, particularly for secured arrangements and valuable equipment. The way this system works is explained in PPSR registration.

Practical Compliance Steps: How To Accept Third Party Payments Safely

The goal isn’t to make payment harder. It’s to accept third party payment arrangements in a way that’s consistent, documented and low-risk.

Here are practical steps many small businesses adopt.

1. Confirm Who The Contract Is With (And Keep That Consistent)

Before you accept a third party payment, confirm:

• Who is the customer/client receiving the goods/services?
• Who is legally signing the contract or accepting your terms?
• Who will be responsible for any additional fees, variations or damages?

If you let this stay vague, you might end up with two people each saying the other one is responsible when there’s a dispute.

2. Get Clear Written Authority From The Third Party Payer

If the third party payer is paying on someone else’s behalf, you’ll usually want written confirmation that:

• they authorise the payment
• they understand what it relates to
• they understand your key terms (like refund and cancellation conditions)

In many cases, the cleanest approach is a short written authorisation (even an email can help, depending on the circumstances). For more formal arrangements, an Authority to Act style document can be useful, particularly where someone is dealing with your business on another person’s behalf.

3. Align Your Refund Policy With The Third Party Scenario

Refunds get tricky with third party payments. If a payer requests a refund, you need to be careful about:

• refunding to the original payment method (often the safest approach)
• not refunding to a different account (which can look like money laundering or fraud)
• making sure you’re refunding the right person in line with your contract and platform rules

Your written terms should ideally deal with:

• who is entitled to request a refund
• how refunds will be processed
• how chargebacks and disputed payments will be handled

4. Use A Simple “Red Flag” Checklist For Staff

If you have staff handling payments, consistency is everything. Consider training them to escalate any third party payment that looks unusual.

Common red flags include:

• payer refuses to provide basic details or authority
• payer pushes urgency (“paying from my friend’s account, ship it now”)
• overpayment followed by a request to refund the difference
• multiple payments from multiple unrelated people for one transaction
• payer asks you to split payments in a complex way

This doesn’t mean the payment is definitely illegitimate - but it does mean you should slow down, document properly, and confirm the arrangement before you deliver goods or start work.

5. Avoid Storing Payment Details Unless You Really Need To

It can be tempting to keep payment details on file for “ease”, especially where a third party is paying ongoing invoices.

But storing payment information can create serious security and compliance risk. If you truly need a “repeat payment” option, it’s often safer to use a reputable payment system that tokenises payment details and reduces what you store directly (and to make sure your documents and processes still reflect what you’re doing).

6. Keep A Paper Trail You Can Actually Find Later

When a dispute happens, it’s usually weeks or months after the payment. Make sure you can quickly pull together:

• the invoice and what it related to
• your written terms that applied at the time
• the payer’s authority/confirmation
• delivery evidence (if relevant)
• refund/chargeback correspondence

A simple folder structure in your CRM or accounting system can save you significant time and stress later.

What Should Your Contracts And Policies Say About Third Party Payments?

For many businesses, the easiest way to manage third party payments is to deal with them in your standard documents upfront.

That way, your team isn’t reinventing the wheel each time, and your customers get a consistent experience.

Depending on your business model, this can be dealt with in your client agreement, online terms, booking terms, or Terms of Trade.

Clauses Small Businesses Often Include

Without being overly legalistic, your documents may need to cover points like:

• Authority to pay: you can accept payment from a third party on the customer’s behalf, and that payment does not change who the contracting party is.
• No change of customer: paying does not make the payer your “customer” unless you agree in writing.
• Refund process: refunds are processed back to the original payment method (where possible) and subject to your standard refund rules.
• Chargebacks and disputes: you can recover reasonable costs of managing disputed payments if allowed by law and your terms.
• Identification and verification: you can request reasonable information to confirm authority for higher-risk transactions.
• Privacy: how you collect and handle payer data in line with your Privacy Policy.

The right wording depends on what you do, who your customers are, how you deliver your goods/services, and your typical payment methods.

If you’re not sure where to start, it’s often worth getting your terms reviewed so they match your real process (not just what you wish your process was).

Third Party Payments In Practice: Extra Tips For High-Risk Industries

Some industries see third party payments more often - and the stakes can be higher because the amounts are larger, delivery is irreversible, or compliance expectations are stricter.

Construction, Trades And Equipment Supply

If you supply goods on credit or provide equipment, you may have a bigger exposure if something goes wrong.

In addition to tightening your payment and authority process, you may consider whether you need security for payment. Depending on the deal, a finance document like a General Security Agreement can be used in some commercial contexts (and documenting security properly is crucial if you ever need to enforce it).

Online Businesses And Digital Services

Online businesses often see third party payments because it’s easy for someone else to enter card details at checkout.

If you sell online, keep your checkout process and terms aligned:

• state that the purchaser confirms they have authority to use the payment method
• make refund rules prominent and consistent
• be careful about saving card details or using “one-click” payment features without appropriate compliance

Professional Services And Retainers

If a third party is paying a retainer for someone else (for example, a company paying for an individual’s professional services), make sure your engagement letter or service agreement makes it clear:

• who your client is (and who you owe duties to)
• who can give instructions
• what happens if payment stops

This is where authority documents and clear written scope can prevent misunderstandings.

Key Takeaways

• A third party payment is when someone other than your customer/client pays you, and it can be legitimate - but it can also create real legal and commercial risk if it’s not documented properly.
• The biggest risk areas tend to be fraud and chargebacks, contract confusion (who is responsible), privacy/data handling, and unclear refund pathways.
• You can reduce risk by confirming who the contract is with, getting written authority from the payer, keeping strong records, and training staff to spot red flags.
• Your customer terms (such as Terms of Trade) should clearly cover third party payments, refunds and disputes so you’re not negotiating these issues case-by-case.
• If you collect payer information or process payments online, make sure you’re handling privacy properly and not creating unnecessary risk by storing credit card details without a compliant process.

Note: This article is general information only and does not constitute legal advice. If you’d like advice for your specific circumstances, you should speak with a lawyer.

If you’d like help setting up terms, policies or a process for third party payment arrangements in your small business, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.