Comply
ATO tax invoice checklist (workshop)
Tax invoices for GST-registered workshops: the words “Tax invoice”, ABN, date, lines, GST. Buyer identity or ABN from $1,000 including GST. Issue within 28 days of a request on taxable sales of $82.50 or more. Not a BAS lodgement product. Xero remains dry-run in the shop OS.
Exclusive
$1672.73
GST 10%
$167.27
Inclusive
$1840.00
Required — The words “Tax invoice”
Tells the buyer (and the ATO) this document supports a GST credit.
Required — Seller identity
Legal or trading name of the workshop.
Required — Seller ABN
GST-registered sellers must show their ABN on a tax invoice.
Required — Date issued
The day the invoice was issued — not the day the car left unless they match.
Required — Description, quantity and price of each supply
Parts and labour as separate lines. Mixed GST-free lines must be marked.
Required — GST amount (or “total includes GST”)
Either a GST column or a clear statement that the total includes GST.
Required — Buyer identity or ABN
Required on tax invoices of $1,000 or more (including GST).
Required — Issue within 28 days of a customer request
Duty applies to taxable sales of $82.50 or more (including GST).
Buyer identity threshold $1,000 inc GST. Request duty from $82.50 inc GST.
Theory
Seven fields, two thresholds
A GST-registered seller’s tax invoice must let a reader see: that it is a tax invoice, who you are, your ABN, the date, what you sold (qty and price), and the GST. From $1,000 including GST you also need the buyer’s identity or ABN. You must issue a tax invoice within 28 days of a customer request for a taxable sale of $82.50 or more including GST. Mixed GST-free lines (some statutory fees) must be marked. Workshop Wrench already prints GST invoices — this page is why those fields exist.
$100 exclusive → $10 GST → $110 inclusive. $1,000 inclusive is the buyer-identity threshold, not a rounding hint.
How to use it
- Role
- Advisor + bookkeeper (P02 / P06) at INVOICE
- Shop-day step
- INVOICE → PAY
- Do
- Use “Tax invoice”, split parts and labour, show GST, capture the fleet ABN on big accounts.
- Do not
- Do not send “Repair — $1,840” with no ABN and call it a tax invoice. Do not claim we file BAS or push live Xero.
Official sources
Related tools
ATO rules as published 25 August 2025. We do not lodge your BAS. Xero in the product is dry-run until tokens exist.