The Arm’s Length Principle: Australian Business Transactions Explained

If you run a business in Australia, it’s normal to buy from, sell to or lend money between entities or people you’re connected with - a director, a sister company, a trust or even a family member.

Those arrangements can be efficient and practical. But the law generally expects those deals to look and feel like transactions you’d do with a complete stranger. That’s the “arm’s length” principle.

In this guide, we’ll unpack what the arm’s length principle means for Australian businesses, when it applies, how to show your pricing and terms are commercial, the risks if they’re not, and the key documents that help you stay compliant and protect your business.

Important note: arm’s length rules can affect tax (including transfer pricing, Division 7A and non‑arm’s length income for super funds), corporate governance and valuations. This is general information only - it’s wise to seek tailored tax and legal advice for your situation.

What Is The Arm’s Length Principle?

The arm’s length principle is the idea that the price and terms of a transaction between related parties should be the same (or at least comparable) to what independent parties would agree to in similar circumstances.

Put simply, if you wouldn’t accept a particular price or risk from an unrelated customer, supplier or lender, you should be cautious about accepting it from a related party - unless you can support it with objective, commercial evidence.

The concept runs across several areas of Australian law, including:

• Tax rules that expect related parties to price goods, services, loans and royalties on arm’s length terms (and can adjust outcomes if they’re not).
• Directors’ duties to act in the company’s best interests and manage conflicts properly.
• Valuation concepts (e.g. “market value” or “fair market value”) used in share or asset transfers.

A practical way to think about it: would a reasonable, independent party accept these terms if they didn’t have a connection to you? If the answer is no, take steps to adjust or document your position.

When Does It Apply In Australia?

Arm’s length thinking shows up in many everyday situations, including:

• Intercompany sales of goods or services - for example, your operating company pays your holding company for management or IP support.
• Loans between a company and a director, shareholder or associate.
• Transfers of shares or assets within a group (for restructures) or between founders and entities they control.
• Intragroup licences - such as brand, software or content licences within a corporate group.
• Related‑party leases of premises, equipment or vehicles.

These are commonly referred to as “related‑party” or “associated entity” dealings. If you’re unsure how relationships are defined, it helps to understand what an Associated Entity is and how Control works under the Corporations Act. Even if two parties aren’t legally “related”, regulators can still look at influence and common control when assessing whether pricing is arm’s length.

Two important scope points to keep in mind:

• Public company rules: statutory related‑party approval rules (for example, Corporations Act Part 2E.1) mainly apply to public companies and certain controlled entities. Private companies (Pty Ltd) usually won’t need shareholder approval under those provisions, but directors’ duties and conflicts management still apply.
• Tax law reaches broadly: Australian tax rules can apply to both cross‑border and domestic related‑party dealings. SMSFs and charities have their own strict non‑arm’s length rules as well - get advice early if they’re involved.

How Do You Demonstrate A Deal Is At Arm’s Length?

You don’t have to guess. A simple, defensible framework is often enough: choose a reasonable pricing method, set commercial terms you’d accept from a stranger, and keep clear evidence.

Step 1: Choose A Defensible Pricing Method

• Comparable Uncontrolled Price (CUP): Use the same price you charge (or pay) independent third parties for the same or similar goods or services.
• Cost Plus: Identify the supplier’s actual costs and add a market margin that reflects functions performed and risks assumed.
• Resale Minus: Start from the customer’s resale price and subtract a normal gross margin to back into the transfer price.
• Transactional Net Margin (TNMM): Test that the net profit margin aligns with what a comparable independent business earns for similar activities.
• Valuation‑Based: For one‑off transfers (e.g. a brand, domain, customer list or shares), use an independent valuation or an accepted valuation methodology.

There isn’t one “correct” method - the key is that your choice makes commercial sense for the type of deal, fits your data, and is applied consistently over time.

Step 2: Set Commercial Terms You’d Accept From A Stranger

• Payment terms: Are they standard for your market and enforced consistently?
• Interest on loans: Is the rate aligned to market conditions, loan tenor and risk profile?
• Security/guarantees: Would an independent lender ask for collateral or a guarantee? Consider whether a General Security Agreement or personal guarantee is appropriate, and whether to register a security interest on the PPSR.
• Duration and renewals: Is the term reasonable and are extension rights balanced for both parties?
• Warranties and liability: Do limitations and indemnities look like your usual third‑party contracts?

Step 3: Keep Clear Evidence

• Benchmarks: Save quotes, third‑party invoices, published rate cards, tender results or reputable database extracts to show comparables.
• Valuations: Use independent or documented valuation methods for assets or when valuing shares in a private company.
• Board papers and approvals: Record that directors identified conflicts, considered the company’s interests, and reviewed market evidence before approving the deal.
• Written agreements: Put the price, scope, payment terms and risk allocation in a properly drafted contract.
• Periodic reviews: Revisit pricing each year (or when market conditions change) and document any adjustments.

Practical Examples (Without Overgeneralising)

• Intercompany service fee: Your operations company receives head office support. You map the relevant costs in a clear cost base, add a commercially justifiable margin supported by comparables, and record the method in an intercompany agreement. You reassess annually and keep your benchmarking file.
• Related‑party loan: A company lends money to a founder. You set a market‑aligned interest rate, require periodic repayments, put terms in a written loan agreement, and consider security where appropriate. If the loan involves a shareholder or associate, think carefully about Division 7A - our overview of a Director Loan sets out the basics.
• IP licence within a group: A holding company owns your brand and licenses it to the trading company. You select a royalty methodology that suits the business and available data, document the rationale, and set commercial payment and reporting terms in the licence. Avoid assuming a “standard” percentage - support your approach with evidence.

Tip: When security is taken for loans or equipment finance, register the interest on the PPSR to preserve priority. If you’re new to the register, start with the basics of what the PPSR is and how it protects lenders and suppliers.

What Happens If Your Terms Aren’t Arm’s Length?

Non‑arm’s length dealings can create immediate and longer‑term issues. The big ones include tax consequences, director duty risks and problems during investment or sale processes.

Tax Adjustments And Penalties

The Australian Taxation Office (ATO) can substitute an arm’s length price and impose penalties where related‑party pricing isn’t commercially justified. For cross‑border dealings, transfer pricing rules allow the ATO to re‑allocate profits to reflect arm’s length outcomes. Even domestically, above‑ or below‑market pricing can distort taxable income and deductions.

Loans to or from shareholders and associates raise Division 7A issues. For instance, an interest‑free loan by a private company to a shareholder can be treated as an unfranked dividend unless it’s on compliant, commercial terms with written documentation and minimum repayments. The structure of any Director Loan matters - get tax input before funds move.

Super funds and charities have additional layers: self‑managed super funds (SMSFs) can be taxed at punitive rates if income is considered non‑arm’s length, and charities can trigger compliance breaches. These are specialist areas, so seek advice early.

Directors’ Duties And Conflicts

Directors must act in the best interests of the company, avoid improper use of position or information, and manage conflicts. If a related party gets a better deal than the company could have achieved at arm’s length, directors risk breaching their duties.

As a governance baseline, conflicted directors should disclose their interest, abstain where appropriate, and ensure the company receives fair value supported by evidence. For public companies (and some controlled entities), formal related‑party approval rules may also apply. For private companies, your constitution and shareholder arrangements often determine what approvals are needed.

Investor Due Diligence And Disputes

When you raise capital or sell the business, investors will scrutinise related‑party arrangements. Non‑commercial terms can reduce valuation, trigger price adjustments or delay/derail a deal. A well‑drafted Shareholders Agreement usually sets expectations for approving related‑party deals and helps avoid disputes between founders and investors.

Documents That Support Arm’s Length Dealings

Paperwork isn’t just a “tick the box” exercise - it’s your evidence that terms were properly considered and commercial. It also manages risk between the parties. Depending on your situation, consider the following.

Core Transaction Documents

• Intercompany Services Agreement: Sets the scope of services, how fees are calculated (e.g. cost base and margin), invoicing and performance standards.
• Loan Agreement: Records principal, interest, repayment schedule, events of default and any covenants. If security is appropriate, pair it with a General Security Agreement and a PPSR registration to reflect how an independent lender would behave.
• IP Licence: Where a holding company owns brands, software or content, a licence sets the royalty methodology, usage rules, audit/reporting rights and termination triggers.
• Asset Or Share Sale Agreement: For internal restructures or equity transfers, use a proper contract and valuation support (often independent) to evidence price and key terms.
• Related‑Party Lease: If an entity you control owns premises or equipment, document the lease with market rent, outgoings, maintenance responsibilities and renewal mechanics.

Governance And Approvals

• Board Resolutions And Conflict Protocol: Minute disclosures, abstentions and the market evidence considered. Keep any benchmarking or valuation attachments with the minutes.
• Shareholder Settings: Use your Shareholders Agreement (and constitution) to define when approvals are required for related‑party transactions, set thresholds, or require independent review for larger deals.

Evidence And Support Files

• Benchmarking File: Quotes, comparable contracts, independent invoices and notes explaining why a particular method fits your facts.
• Valuation Report: For intangibles, leases or equity transfers, a documented methodology or independent report supports pricing and reduces disputes later.
• PPSR Records: If you’ve taken security, keep copies of registrations and expiry dates; understanding what the PPSR is helps you maintain priority and manage risk.

Common Pinch Points To Watch

• Internal royalties and service fees: Write down the calculation method (cost base, margin or royalty basis), align to market evidence, and review annually.
• Loans to founders and associates: Document everything, charge an appropriate rate, set repayments and consider security. Division 7A can bite if terms aren’t commercial.
• Moving IP into a holding company: Record a sale or licence at a defensible price, set payment terms, and keep the valuation or benchmarking file with board approvals.

Practical Steps To Implement An Arm’s Length Framework

Bringing arm’s length discipline into your day‑to‑day doesn’t have to be complex. A lightweight framework works well for most small and medium businesses.

1) Map Your Related‑Party Dealings

List the entities and people connected to your business and map the current or likely transactions (services, loans, licences, leases, transfers). This helps you spot where documentation or benchmarking is missing.

2) Pick A Pricing Approach You Can Support

Choose a method that fits your data. If you have third‑party comparables, CUP is often simplest. If you’re centralising shared services, cost‑plus may be practical. For one‑off transfers, a valuation‑based approach may be more reliable.

3) Align Your Terms To Market Practice

Adjust payment terms, interest, security, liability and renewal mechanics so they broadly match what you’d accept from an independent party. For secured loans or retention of title, don’t forget PPSR registrations - they’re often the difference between getting paid and standing in line. If you need help getting started, our overview on registering a security interest covers the essentials.

4) Document, Minute, Review

Put written agreements in place, minute approvals with conflicts noted, and schedule an annual review to check whether your pricing still looks right. This cadence builds a robust evidence trail without heavy admin.

5) Know When To Call In Specialists

There are moments where outside input pays for itself - for example, complex valuations, cross‑border transfer pricing, SMSF or charity transactions, or significant internal restructures. Getting targeted tax advice alongside legal documentation avoids costly re‑work later.

Key Takeaways

• The arm’s length principle expects related‑party transactions to mirror what independent parties would accept in similar circumstances.
• It commonly applies to intercompany services, loans, IP licences, leases and internal share or asset transfers in Australia.
• A practical framework is: choose a sensible pricing method, set commercial terms you’d accept from a stranger, and keep clear evidence (benchmarks, valuations, board minutes and written contracts).
• Non‑arm’s length terms can trigger tax adjustments and penalties (including Division 7A), director duty issues, and problems during investment or exit due diligence.
• Put robust documents in place - intercompany agreements, loan agreements (with PPSR registrations where relevant), IP licences and sale agreements - and use your Shareholders Agreement and governance settings to manage approvals and conflicts.
• For loans and secured arrangements, consider a General Security Agreement and understand the PPSR to protect priority.

If you’d like help setting up arm’s length agreements, pricing frameworks or approvals for related‑party transactions, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no‑obligations chat.