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Invoicing guide

How to invoice in Australia

What a valid invoice needs in Australia, how GST works, and what is changing. Checked 22 September 2026.

TaxGST
Rate10%
RegistrationRegister once GST turnover reaches AUD 75,000.
CurrencyAUD
E-invoicingNo B2B mandate. Peppol e-invoicing is voluntary, and federal agencies accept it.
Tax authorityAustralian Taxation Office (ATO)

What a valid invoice must include

  • The words 'tax invoice'
  • Your identity and ABN
  • Issue date
  • Description, quantity and price
  • GST amount, or a statement that the total includes GST
  • Buyer's identity or ABN when the total is AUD 1,000 or more

Good to know

A tax invoice is required for sales over AUD 82.50 including GST when the customer asks for one.

Invoicing Australia clients from abroad

If you are not based in Australia, the rules of your own country usually decide what goes on the invoice. Business-to-business services supplied across borders are often outside the scope of local tax or fall under reverse charge. Invoice in AUD if your client prefers it, so they pay the exact amount.

How Pigee Invoice helps

  • Invoices in AUD and 50+ other currencies
  • Tax treatment suggested from your country and your client's, including reverse charge
  • Sequential, month-based invoice numbers such as INV-OCT-001
  • A pay page with card payment and your bank details

This guide is general information, not tax advice. Tax rules change; check with Australian Taxation Office (ATO) before relying on it.

Questions people ask

What is the GST rate in Australia?

10%.

When do I have to register for GST in Australia?

Register once GST turnover reaches AUD 75,000.

Is e-invoicing mandatory in Australia?

No B2B mandate. Peppol e-invoicing is voluntary, and federal agencies accept it.

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