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Comply
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.
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.
ATO rules as published 25 August 2025. We do not lodge your BAS. Xero in the product is dry-run until tokens exist.