A valid Australian tax invoice for sales over $82.50 (incl GST) must show: the words "tax invoice"; the seller's identity and ABN; the date of issue; a description of the items sold; the GST amount (or that the price includes GST); and the total.
For sales of $1,000 or more (incl GST), the tax invoice must also show the buyer's identity or ABN.
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You must provide a tax invoice within 28 days of a customer's request; sales of $82.50 (incl GST) or less don't require one.
No ABN on an invoice can trigger 47% no-ABN withholding by the payer; if you're not GST-registered, never issue a tax invoice or show GST.
Electronic tax invoices (PDF, email, software-generated) are fully valid — keep all GST records for five years.
A valid Australian tax invoice must show seven things: the words "tax invoice", the seller's identity and ABN, the date of issue, a description of what was sold, the GST amount (or a statement that the price includes GST), and the total. If a sale is $1,000 or more (including GST), you also have to show the buyer's identity or ABN. Get any of these wrong and your customer may be unable to claim their GST credit — and you could face ATO compliance issues.
This guide walks through exactly what the Australian Taxation Office (ATO) requires, the two key thresholds, and the common mistakes that quietly void a tax invoice.
A tax invoice is not just any invoice. In Australia, a tax invoice is a specific document that meets requirements set by the ATO under the GST legislation. It serves two critical purposes: it tells your customer how much GST they're paying, and it allows GST-registered buyers to claim GST credits on their purchases.
If you're registered for GST, you must issue a tax invoice for any taxable sale over $82.50 (including GST) when a customer requests one. You have 28 days to provide it after the request. The $82.50 figure is simply $75 plus 10% GST.
Getting this wrong doesn't just look unprofessional — it can mean your customers can't claim their GST credits, and you could face compliance issues with the ATO.
Every tax invoice in Australia must include the following seven elements:
The words "Tax Invoice" — stated prominently on the document
Your identity — your business name or the seller's name
Your ABN — the seller's Australian Business Number
The date of issue — when the invoice was created
A brief description of the items sold, including quantity and price
The GST amount for each item (or a statement that the total price includes GST)
The total price including GST
These requirements apply to all taxable sales regardless of value. You can build a compliant document in minutes with the free tax invoice generator, which lays out every one of these fields by default.
A regular invoice is simply a request for payment. It can contain whatever you like — a handwritten note on a napkin technically counts.
A tax invoice is a legally defined document. It must contain the specific information prescribed by the ATO above. The key difference is that a tax invoice enables the recipient to claim GST credits, while a regular invoice does not.
If you're not registered for GST, you issue regular invoices and should not show a GST amount. If you are registered, every invoice for a taxable sale should be a valid tax invoice.
A graphic designer invoices $550 (inc. GST) for a logo design. The tax invoice needs the seven basic elements listed above but does not need the buyer's name, ABN, or address.
An electrician invoices $2,200 (inc. GST) for a switchboard upgrade. This invoice must include all seven basic elements plus the buyer's identity, ABN, and address.
In some industries, the buyer creates the tax invoice instead of the seller. This is common in agriculture, where a processor creates the invoice for produce received from a farmer, and in sectors like scrap metal.
RCTIs require a written agreement between both parties and must include the words "Recipient-Created Tax Invoice" instead of "Tax Invoice."
It sounds trivial, but if your document doesn't say "Tax Invoice" on it, it technically isn't one. Many invoice templates default to just "Invoice" — check yours.
Every tax invoice must show the seller's ABN. If you're issuing invoices without your ABN, the payer may be required to withhold 47% of the payment under the "no ABN withholding" rules and send it to the ATO.
You must either show the GST amount for each line item or include a statement that the total price includes GST. Simply writing a total without any GST reference is not compliant. If you ever need to check the maths, the GST calculator splits any inclusive or exclusive figure into its GST and net components.
If you've changed your business structure or name, make sure your invoices reflect the current registered details. Outdated information can cause problems during ATO audits.
The ATO accepts electronic tax invoices — PDFs, emailed invoices, and invoices generated by software are all valid, provided they contain the required information. There is no requirement for a physical or paper invoice.
Digital invoices are actually preferred because they're easier to store, search, and back up for the mandatory five-year record retention period.
OneBookPlus is an all-in-one Australian business platform — bookings, quotes, invoicing, jobs, CRM and accounting in one place, hosted on AWS in Sydney. It's GST-, ABN- and BAS-native, so tax invoices are correct by default rather than something you have to assemble by hand. When you create an invoice:
The document is labelled "Tax Invoice" automatically
Your ABN is displayed from your business profile
GST is calculated and shown on every line item
For invoices over $1,000, client details including name and ABN are included
The date, description, quantities, and totals are all formatted correctly
Invoices are stored digitally for easy retrieval and the five-year record-keeping rule
You never have to worry about missing a field or getting the format wrong. Every invoice you send from OneBookPlus is ATO-compliant from the moment you hit send — and because there's a genuinely free plan with flat, predictable pricing, you can start without a card. See how it compares as dedicated Australian invoicing software, or explore the fit for tradies, electricians and freelancers and sole traders.
A tax invoice for a sale over $82.50 (inc. GST) must show the words "tax invoice", the seller's identity and ABN, the date of issue, a description of the items sold, the GST amount (or a note that the price includes GST), and the total price. For sales of $1,000 or more, you must also show the buyer's identity or ABN.
No. You're not required to provide a tax invoice for taxable sales of $82.50 (including GST) or less, though you can if the customer asks. For sales above that amount, you must provide one within 28 days of a customer's request.
No. Only GST-registered businesses can issue tax invoices and charge GST. If you're not registered, issue a regular invoice with no GST shown — doing otherwise is misleading and can attract penalties.
Stop second-guessing whether your invoices are compliant. Try the free tax invoice generator to produce an ATO-compliant invoice right now, or start your free OneBookPlus plan — every invoice you send is ATO-compliant from the moment you hit send.
