Tax Invoice Compliance Checklist

Before you start

A tax invoice is the document a GST-registered seller issues for a taxable sale, and it is what lets a GST-registered buyer claim back the GST they paid. If a required field is missing, the buyer may be unable to claim and will often ask you to re-issue, so getting it right first time keeps both sides' records clean.

This checklist is general guidance only, not tax or legal advice. The exact fields and any value thresholds are set by the ATO and can change, so confirm the current detail at ato.gov.au or with your accountant before you rely on it. Do not memorise a dollar figure from an old template.

Confirm the core fields

For most taxable sales, check that the document clearly shows:

• The words 'tax invoice'
• The seller's identity — your business or trading name
• The seller's ABN
• The date the invoice is issued
• A brief description of what was sold, including quantity where relevant
• The GST amount, or a statement that the price includes GST
• The total amount payable

Keeping each item on its own line makes the invoice easy for the customer's accounts team to process and check.

Check the extra detail for larger supplies

Once a sale reaches a higher value, the ATO expects the tax invoice to also identify the buyer:

1. Confirm whether the sale is above the value where buyer details are required — check the current threshold with the ATO rather than assuming a figure
2. If it is, show the buyer's name and, for business-to-business sales, their ABN
3. Where the simplest path is to always capture buyer details, build one layout that does so on every job

Defaulting to a single complete layout means you are compliant regardless of sale value and never have to decide on the spot which version to use.

Check the GST treatment is shown correctly

The way GST appears is what the buyer's bookkeeping depends on, so confirm:

• Whether the supply is taxable, GST-free or input-taxed
• That mixed invoices clearly show which lines include GST and which do not
• That the GST shown reconciles with the line totals
• That you are entitled to charge GST at all — generally only if you are registered

If you are not registered for GST you issue a plain invoice, not a tax invoice. See the difference between an invoice and a tax invoice if you are unsure which you should issue.

Common mistakes

Watch for these recurring compliance slips:

• Missing 'tax invoice' wording — a document headed only 'invoice' may not support a GST claim
• No ABN — one of the most common reasons a tax invoice is rejected
• Hard-coded thresholds — relying on an old dollar figure for when buyer details are needed
• GST on a non-registered invoice — charging GST when you are not registered to
• Unclear mixed supplies — not separating taxable and GST-free lines

A consistent template avoids most of these. Our free invoice tools set out the standard tax-invoice fields, and you can read what a tax invoice must include for the detail. This remains general information only — confirm the current ATO requirements before relying on them.