Promissory Note Template in Australia: How To Draft One

If your business is lending or borrowing money, a simple promissory note can be a fast, low-cost way to record the deal. It’s a short, written promise to repay a debt - clear, direct and useful when cash needs to move quickly.

But “simple” doesn’t mean “anything goes”. To be enforceable in Australia, your promissory note needs to set out the right terms, be signed correctly and line up with how you actually plan to get repaid (including any security or guarantees).

In this guide, we’ll walk through what a promissory note is, when to use one, what to include in a promissory note template in Australia, and when you’re better off with a more detailed Loan Agreement. We’ll also cover security options, signatures and practical steps so you can issue and manage promissory notes with confidence.

What Is a Promissory Note (And When Should You Use One)?

A promissory note is a short document where one party (the borrower) promises to repay a sum of money to another (the lender) on agreed terms. Think of it as a straightforward IOU with legal weight.

Small businesses often use promissory notes to:

• Document short-term funding from a founder, director or related entity
• Record a simple business-to-business loan (for example, to help a supplier cover a seasonal cash gap)
• Formalise repayment terms for deferred purchase amounts (e.g. part of a price paid later)
• Back up a friendly loan so there’s clarity and a paper trail if things change

Because promissory notes are lean, they suit simpler, lower-risk loans. If the transaction is larger, involves staged drawdowns, complex events of default, representations and warranties, or bespoke covenants, a full Loan Agreement is usually the safer choice.

For a deeper dive into how these documents work in practice, see our plain-English guide to promissory notes.

What To Include In a Promissory Note Template (Australia)

Every promissory note is different, but strong templates in Australia typically cover the following essentials.

1) Parties and Principal Amount

List the legal names, Australian addresses and ABN/ACN (if relevant) of the lender and borrower. State the principal amount clearly in AUD, both numerically and in words to avoid disputes.

2) Interest Rate and How It’s Calculated

Set the interest rate (fixed or variable), the compounding method (if any) and the calculation basis (e.g. daily interest on a 365-day year). Spell out when interest starts accruing, and whether default interest applies if a payment is missed.

3) Repayment Terms

Say exactly when and how the borrower will repay:

• On-demand, on a fixed maturity date, or by instalments
• Payment method and bank account details
• Prepayment rights (and whether there are any fees)

4) Default and Remedies

Define “Events of Default” (e.g. missed payment after a short grace period, insolvency, breach of other obligations) and what happens next - such as acceleration (making the full amount immediately due) and the right to recover enforcement costs.

5) Security (If Any)

Promissory notes can be unsecured or secured. If you want security over business assets, you’ll usually pair the note with a separate General Security Agreement and then register a security interest on the PPSR to make your priority clear. If there’s a personal guarantee from a director, reference it in the note and attach it.

6) Costs, Taxes and Set-off

Confirm who pays legal and registration fees, whether interest continues during disputes, and if the borrower can set off other claims (most lenders exclude set-off so repayments continue regardless).

7) Governing Law and Notices

Choose an Australian state or territory law and include a simple notices clause (how notices are given and when they’re taken to be received).

8) Execution Block

Add signature blocks for individuals and/or companies. If a company is signing, consider execution in line with section 127 of the Corporations Act or another valid method, and decide whether you’ll use wet ink or electronic signatures. If you require a witness for individuals, include a witness block and follow the basic rules to witness a signature properly.

Securing a Promissory Note: PPSR, Security and Guarantees

If you’re lending to a company or trust and want real protection, think beyond a bare promise to pay.

Use a Security Agreement and Register on the PPSR

A promissory note itself usually doesn’t create registrable security. To secure repayment against the borrower’s assets, take a General Security Agreement then register that interest on the Commonwealth Personal Property Securities Register (PPSR). Proper PPSR registration can put you ahead of unsecured creditors and later registrants if the borrower becomes insolvent.

If you’re new to the regime, our explainer on the PPSR covers why timing, accuracy and collateral descriptions matter for priority.

Consider a Personal Guarantee

If the borrower is a company with few assets, a director or owner can provide a personal guarantee. This gives you a direct claim against the guarantor if the company doesn’t pay. Guarantees are powerful but come with real risk for the signer - our overview of Personal Guarantees explains the implications.

Should You Rely on Retention of Title Instead?

If the “loan” is really deferred payment for goods you supply, consider retention of title clauses in your terms and registering purchase money security interests (PMSIs) rather than using a promissory note alone. This is a specialist PPSR topic - get advice to structure it correctly.

Promissory Note vs Loan Agreement: Which One Should You Use?

Both documents record a loan, but they serve different needs.

• Promissory note: quicker to draft, fewer moving parts, suits simple, short-term loans and smaller amounts. You can still pair it with security or a guarantee.
• Loan Agreement: more comprehensive. Includes drawdown mechanics, detailed representations and warranties, information undertakings, financial covenants, broader events of default, and tailored enforcement rights. Better for larger loans, external investors, cross-border funding or anything complex.

As a rule of thumb: if you’d be comfortable enforcing your rights in a dispute with just a one-page promise and a bank statement, a promissory note may be enough. If not, step up to a full agreement.

How To Issue and Manage a Promissory Note (Step-By-Step)

1) Align on Commercial Terms First

Agree the amount, timing, interest, and whether the loan is secured or guaranteed. If security is involved, plan the PPSR registration timing before funds move - priority can depend on registration date.

2) Draft the Note (And Any Supporting Documents)

Prepare the promissory note with the essentials listed above. If you’re taking collateral, prepare a General Security Agreement. If a director will back the loan, draft a short-form guarantee.

3) Execute Correctly

Ensure the right people sign, using valid company execution or individual signatures with witnessing where required. Decide whether you’ll use wet ink or acceptable electronic signatures and keep clean copies of all documents.

4) Register Security Promptly (If Secured)

Accurately register security on the PPSR as soon as possible. Errors in names, ACNs or collateral descriptions can undermine your priority - double-check before submitting.

5) Disburse Funds and Keep Records

Transfer the principal and retain proof (remittance advice, bank records). Track interest accruals and due dates in your accounting system so reminders go out early.

6) Monitor Compliance and Communicate

If a payment is missed, follow up quickly, offer a short cure window where appropriate, and then apply default steps per the note. Clear communication often resolves issues before they escalate.

Common Mistakes To Avoid With Promissory Notes

• Vague repayment terms: “Repay when possible” is almost impossible to enforce. Use clear dates or objective triggers.
• Unclear interest rules: State the rate, how it accrues, and when default interest applies (if at all).
• No security when you need it: If asset backing matters, a standalone note won’t give you PPSR priority - add security documents and register properly.
• Forgetting guarantees: If you expect an owner to stand behind the debt, get a signed guarantee at the start, not after an issue arises.
• Execution missteps: Incorrect company execution or missing witnesses can invite disputes. Follow the basics to properly witness a signature.
• Relying on templates forever: A “good enough” template may work once, but larger or unusual deals deserve a tailored Loan Agreement.

Frequently Asked Questions About Promissory Notes (Australia)

Are promissory notes legal and enforceable in Australia?

Yes - provided the terms are clear, the parties are properly identified, and the note is signed by the borrower (and guarantor, if any). Enforcement is much easier if you’ve also secured the loan and registered on the PPSR where appropriate.

Do I need a witness for a promissory note?

There’s no universal rule that a promissory note must be witnessed. However, if individuals are signing, some businesses prefer witnessing to reduce the risk of later signature disputes. If you do use a witness, ensure they meet the basic requirements to witness a signature correctly.

Can I sign a promissory note electronically?

Often, yes. Many promissory notes can be signed with compliant e-signatures, though there are exceptions and practical considerations (like witnessing). Our overview of electronic signatures explains when e-signing is acceptable in Australia.

Is a promissory note the same as an invoice or IOU?

No. An invoice requests payment for goods or services; an IOU can be little more than an informal note. A promissory note is a specific legal promise to repay a loan on agreed terms, and it’s stronger evidence if you ever need to enforce repayment.

What if I want collateral or a director guarantee?

Use a separate General Security Agreement (for business assets) and consider a personal guarantee from a director or owner. Then register your security interest on the PPSR to protect your priority position.

Key Takeaways

• A promissory note is a lean, enforceable promise to repay a loan - ideal for simple, short-term business funding.
• Your template should clearly set out parties, amount, interest, repayment, default, costs, governing law and execution blocks.
• If you want real protection, combine the note with security (via a General Security Agreement) and a timely PPSR registration, and consider a director guarantee.
• For larger or more complex deals, a full Loan Agreement usually offers better risk management and clarity.
• Correct execution matters - decide on wet ink vs electronic signatures and make sure any witnessing is done properly.
• It’s wise to get legal input on structure, security and enforcement steps before funds move, especially where the PPSR and Personal Guarantees are involved.

If you’d like a consultation on preparing a promissory note or structuring a simple business loan, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.