Tax Invoice Requirements AU Your 2026 ATO Checklist

Everything you need to know about Australian tax invoice requirements, ABN and GST invoice fields, and the practical tools to create one correctly. Start with the checklist, then use the free tax invoice template or GST calculator when you are ready to send.

Free template and calculator included - sign up only when you want the workflow handled for you

The GST maths

Adding GST, finding it inside a total, and where the two thresholds come fromWorked example, not a real invoice

Adding GST to a price

Multiply the GST-exclusive price by 1.1

GST-exclusive priceA$100.00

GST (10%)× 0.1A$10.00

GST-inclusive total+ GSTA$110.00

Finding GST inside a total

Divide the GST-inclusive price by 11

GST-inclusive totalA$110.00

GST amount÷ 11A$10.00

The two thresholds on this page

Where A$82.50 comes from, and the flat A$1,000 rule

Before GSTA$75.00

No tax invoice needed at or below+ 10% GSTA$82.50

Buyer's identity or ABN needed at or aboveA$1,000.00

Invio works out this maths automatically on every invoice, with GST and ABN details handled for you.

What is a tax invoice?

A tax invoice is the document a GST-registered business issues so the buyer can claim back the GST they paid. The ATO requires specific details on it, scaled to the value of the sale - the checklist below walks through each threshold. If you are contracting as an individual, check what counts as a taxable sale before you invoice your first client.

Why these invoice details matter

Your customers need a valid tax invoice to support their own GST claims. If your invoice is missing required details, your customer may not be able to claim the GST, which can slow payment and create avoidable back-and-forth. Learn how to create compliant invoices step by step, download the free tax invoice template AU or read our ABN invoicing guide to get every field right the first time.

Not GST-registered yet?

Only businesses registered for GST (required once turnover reaches A$75,000, or you expect it to) may charge GST and use the words 'Tax Invoice'. Below that threshold, issue a plain 'Invoice' with no GST line. Once you cross the threshold, registration is compulsory within 21 days.

What each invoice should carry

What the ATO requires depends on the value of the sale. The requirement grows in three steps as the amount goes up.

Sales of A$82.50 or less

A regular receipt or sales record is enough to support the buyer's own GST credit claim
Keep your own record of the date, description, and amount for GST reporting
If the buyer requests a tax invoice, provide one within 28 days with the same seven details as any other tax invoice
Not GST-registered? Never charge GST regardless of sale size

Sales over A$82.50 and under A$1,000

The words "Tax Invoice" stated prominently
Supplier's identity (business/trading name)
Supplier's ABN
The date the invoice was issued
A brief description of the goods or services (with quantity where applicable) and the price
The GST amount, shown separately or as "Total price includes GST"
The extent each sale is a taxable sale, if any line items are GST-free

Sales A$1,000 and over

All seven details required for the A$82.50-A$1,000 tier
Buyer's identity (name) or ABN
Especially important for B2B invoicing and larger trade jobs
Enough detail for both parties to support their GST records later

Common tax invoice mistakes to avoid

These mistakes slow payment, invite disputes, or put you offside with the ATO. Easy to fix once you know them.

Missing ABN

YES

Include your 11-digit ABN on every tax invoice - it is a mandatory field, not optional.

"Tax Invoice" while not GST-registered

YES

Only GST-registered businesses may use this wording and charge GST.

GST calculation errors

YES

Use software like Invio to automatically calculate 10% GST.

Missing buyer ABN on large invoices

YES

For invoices A$1,000+, always include the buyer's identity or ABN.

Unclear GST breakdown

YES

Show GST separately or clearly state "Total price includes GST".

Wrong invoice date

YES

Use the date you issue the invoice, not the work completion date.

Go from rules to invoices

Generate a compliant invoice

Turn the rules into a proper ATO-ready invoice in under a minute.

Download a tax invoice template

Use the free tax invoice template AU if you want a quick offline starting point.

Check GST amounts

Work out the 10% GST before you send the invoice.

Start with Invio

Move from one-off admin to a repeatable invoicing flow.

Tax Invoice FAQs

Common questions from Australian business owners about GST, ABNs, and getting invoices right.

What are the tax invoice requirements in Australia?

GST-registered sellers need to issue a tax invoice for taxable sales over A$82.50. The exact details required depend on the value of the sale: sales over A$82.50 and under A$1,000 need seven specific details, and sales of A$1,000 or more need those seven details plus the buyer's identity or ABN.

Do I need to write "Tax Invoice" on my invoice?

Yes, if you are GST-registered and the sale is over A$82.50 - the words "Tax Invoice" must be stated prominently. If you are NOT GST-registered, you should never use the words "Tax Invoice" or charge GST - issue a plain "Invoice" instead.

What are ATO invoice requirements for GST records?

ATO tax invoice requirements depend on the value of the sale. Above A$82.50, invoices need the supplier's identity, ABN, the date, a description of the goods or services, and the GST amount (shown separately or as "Total price includes GST"). Above A$1,000, the buyer's identity or ABN is also required.

Where can I get a tax invoice template for Australia?

Invio provides a free Australian tax invoice template and a free GST calculator. You can also sign up for Invio when you want saved clients, invoice numbering, and GST calculations handled automatically.

What is the GST rate in Australia?

The standard GST rate in Australia is 10%. GST-registered businesses generally add this to most taxable goods and services, and GST is 1/11 of the GST-inclusive total.

When do I need to provide a tax invoice?

You must provide a tax invoice for any taxable sale over A$82.50. Separately, if a customer asks for a tax invoice, provide it within 28 days of the request. For sales of A$82.50 (including GST) or less, a tax invoice is not required at all for the buyer's own GST credit claim - a regular receipt or sales record is enough, though you should still keep your own record of the sale. In practice, most GST-registered businesses issue a tax invoice with every sale so nobody has to chase paperwork later.

Can I issue an invoice if I'm not GST registered in Australia?

Yes - you can still issue a regular invoice for your work. But you must not charge GST, and you must not use the words "Tax Invoice" or present the sale as a taxable supply if you are not GST registered.

How long do I need to keep invoice and GST records in Australia?

The ATO generally requires you to keep tax records, including invoices and supporting GST information, for at least 5 years from whichever is later of when the record was made or the transaction completed. This applies to both invoices you issue and records you receive from suppliers.

What's my ABN?

Your ABN (Australian Business Number) is an 11-digit number issued by the Australian Business Register when you register your business. It is what identifies your business on a tax invoice - not a Tax File Number (TFN), which is a separate personal/entity income-tax identifier and should not appear on customer-facing invoices. An IRD number is a New Zealand concept and does not apply in Australia - the required field on an Australian tax invoice is your ABN. See the ATO tax invoice checklist above for the full list of required fields, or our dedicated ABN invoicing guide for the format and the no-ABN withholding rule. For advice specific to your circumstances, refer to ato.gov.au.

Create ATO-compliant tax invoices automatically

Invio ensures every invoice meets ATO requirements. Automatic GST calculation, ABN field, proper formatting, and instant delivery.