An Australian invoice template is a reusable document for requesting payment for goods or services. Use the blank template below as a starting point, then add the details that fit your transaction; if you are registered for GST and the sale is taxable, make sure it also meets the requirements for a tax invoice when one is needed.
What an Australian invoice does
An invoice records what was supplied, how much is payable and when payment is expected. It gives the customer a reference for paying and gives both parties a written record of the transaction. There is no single government form that every Australian business must use, so a document can be made in a word processor, spreadsheet or invoicing system, provided its details are clear and any tax-invoice rules that apply are met.
“Invoice” and “tax invoice” are not interchangeable labels. A regular invoice can be used to request payment, including by a supplier that is not registered for GST. A tax invoice is a document with specific information required for GST purposes. Calling a document a tax invoice does not make its contents correct, and a supplier that is not registered for GST must not charge GST or represent an invoice as a tax invoice.
Australian invoice template
Copy the blank fields into your preferred document and add rows if you have more items. The sample is fictional and is for illustration only; it is not a valid tax invoice or a substitute for checking your own details.
| Field | Details |
|---|---|
| Business or supplier name | |
| Business address and contact details | |
| ABN, if applicable | |
| Invoice number | |
| Invoice date | |
| Customer name and address | |
| Payment due date or agreed terms | |
| Payment instructions |
| Description of goods or services | Quantity | Unit price (AUD) | GST | Line total (AUD) |
|---|---|---|---|---|
Subtotal (AUD): ____________________
GST, if applicable: ____________________
Total due (AUD): ____________________
Sample only — fictional details: Example Studio; invoice ES-104; issued 3 March 2026; customer: Riley Sample; description: “Design consultation”; quantity: 1; line total: $220.00 AUD; payment due: 17 March 2026. The sample does not state an ABN or establish whether GST applies.
Details to put on an invoice
Even when a particular format is not prescribed, practical invoices identify the parties and make the amount due easy to understand. Include a unique invoice number so that you and the customer can refer to the same document when discussing payment, a correction or a refund. Use an issue date and, where relevant, a separate due date. A due date should reflect the payment terms agreed with the customer rather than being presented as a universal Australian deadline.
Describe the work or items specifically enough to explain the charge. For example, “consulting” is less useful than “two-hour website accessibility review completed 3 March”. Add quantities, rates and line totals when they help the customer check the calculation. State the currency, usually Australian dollars (AUD), particularly if you deal with overseas customers or quote in more than one currency. Show the total clearly and explain any discount, deposit already paid, delivery charge or other adjustment.
Include payment instructions that are accurate and appropriate for your business, such as the accepted payment method and the payment reference to use. Do not put sensitive information on an invoice unless it is genuinely needed. A business contact email or phone number can make it easier to resolve a query before the due date.
When a tax invoice is required
GST-registered suppliers use tax invoices for taxable sales. If a customer asks for a tax invoice for a taxable sale of $82.50 or more, including GST, the supplier generally has 28 days to provide it. A customer may request one for a smaller sale too. The GST rules set out what the document needs to show; a plain invoice may not be enough for a GST-registered customer to support a credit for GST paid.
For a taxable sale, a tax invoice generally needs to show the words “Tax invoice”, the supplier’s identity and ABN, the date it was issued, a description of the items or services, and the total price. It must also show the GST payable or state that the total price includes GST, as applicable. If an invoice covers both taxable and GST-free sales, it should make clear which items are taxable and the GST information for those items.
For a tax invoice with a total of $1,000 or more, it must also identify the customer or show the customer’s ABN. This is one reason to collect the customer’s correct business details before issuing a higher-value invoice. Requirements can depend on the transaction and the way the price is presented, so do not assume that adding a GST line alone makes a document compliant.
How to prepare and send one
A simple workflow reduces avoidable questions and corrections. Before sending an invoice, check that the person or business being billed matches the agreement and that the description reflects what was actually supplied. Then verify the arithmetic and tax treatment, add the payment information, and keep a copy of the version sent.
- Confirm the customer’s billing name and any details needed for a tax invoice.
- Enter the invoice number, issue date, description, quantities and prices.
- Work out the total and show GST information only as appropriate to your GST status and the sale.
- State the agreed payment terms and provide clear payment instructions.
- Review the document, send it using the agreed channel and retain a copy with related records.
Send the invoice promptly after the agreed milestone, delivery or service, unless your contract or normal process specifies another point. If an invoice is wrong, make the correction traceable: identify the original invoice and clearly state whether the replacement supersedes it or records an adjustment. Avoid silently changing a file after it has been sent, as the customer may retain the original.
Choosing a format and level of detail
A printable template works well for occasional, straightforward invoices. A spreadsheet can calculate line totals, but formulas should be checked and protected from accidental edits. A digital invoicing tool may help when you issue invoices regularly, need sequential numbering, or want to track which ones remain unpaid. These are format choices, not substitutes for accurate content or for the rules that apply to a tax invoice.
Choose a layout that remains readable on a phone and when printed. Keep the business identity, invoice number, amount due and due date easy to find. Use consistent number formats and dates, and avoid relying on colour alone to distinguish GST or payment status. If your customer requires a purchase-order number or a particular submission method, include it; those requirements may come from the customer’s process or contract rather than from a universal invoice template rule.
Payment terms and keeping records
Payment terms explain when and how the customer is expected to pay. Common arrangements include payment on receipt or a stated number of days after issue, but the right term depends on what the parties agreed. Do not imply that one term applies to all Australian invoices. If a contract sets a due date, make the invoice consistent with it; if the due date is unclear, clarify it with the customer before relying on it.
Retain the invoice and supporting records, such as the relevant quote, agreement, delivery note or correspondence, according to the record-keeping rules that apply to your business. A consistent numbering system helps connect invoices with payments and follow-up messages. If payment is late, refer to the invoice number, amount and due date in a courteous reminder, and check whether the customer has raised a genuine query or says payment has already been made.
Common invoice mistakes
- Charging GST without the right status: Do not add a GST amount merely because a template has a GST column. GST treatment depends on the supplier’s registration and the nature of the supply.
- Using “tax invoice” casually: The label has GST significance. A supplier not registered for GST should not issue a tax invoice or collect GST as though registered.
- Leaving out useful descriptions: Vague labels can make it difficult for the customer to match a charge to the work or order. Identify the service period, item or milestone where it helps.
- Mixing up dates: The invoice issue date and payment due date serve different purposes. Label both if both are shown.
- Sending inconsistent totals: Check that line totals, discounts, GST and the final amount agree. If a correction is needed, make the relationship to the earlier invoice clear.
A related misconception is that every invoice must show GST. It does not: a supplier may not be registered, or a supply may not have GST charged. Conversely, a customer’s request for an ABN does not by itself mean the supplier should add GST. For a situation requiring tax or legal interpretation, ask a qualified professional.
Frequently Asked Questions
Is there a free Australian invoice template?
A basic template can be created from the blank fields above or adapted from a printable document. There is no single required national layout for every invoice. Check that the version you use includes information suited to the transaction and any tax-invoice details that apply.
What is the difference between an invoice and a tax invoice?
An invoice requests payment and records a sale. A tax invoice is specifically used for GST purposes and must include the information required for the relevant taxable sale. Not every invoice is a tax invoice, and not every sale has GST to show.
Can I send an invoice without an ABN?
A template can have an ABN field, but whether a supplier should quote an ABN and what happens if one is not quoted depend on the circumstances. An ABN is not a reason to charge GST if the supplier is not registered. Ask a qualified professional if you are unsure about your obligations.
Does every Australian invoice need a due date?
A due date is useful, but it should reflect the payment terms agreed with the customer. There is no single due date that automatically applies to every invoice. Put the terms in writing and make the invoice consistent with the relevant agreement.
When must I give a customer a tax invoice?
For a taxable sale of $82.50 or more including GST, a GST-registered supplier generally needs to provide a tax invoice within 28 days after the customer requests it. The document also needs the required details, including additional customer identification for invoices of $1,000 or more.