GST on your invoices, and your BAS
Turn GST on in Settings → GST and add your ABN. Your BAS figures are under Reports & BAS.
Open Settings, tap GST, and turn on Registered for GST. It won't turn on without an ABN — a tax invoice isn't valid without one — so it asks, and shows the ABN row.
In the appSettings → GST
On a computer, it's the Business details tab in Settings.
What changes
Your prices stay as you set them — the GST comes out of the price, not on top. A $110 groom is $100 plus $10 of GST on the invoice, and the document is headed TAX INVOICE with your ABN on it.
Not registered? Nothing is calculated and the heading is just INVOICE. Invoices you'd already issued keep their totals.
Your BAS figures
Open the menu, tap Reports & BAS, then BAS. Pick a quarter and you get the two numbers you copy into myGov: G1, your total sales, and 1A, the GST in them. Switch between Cash and Accrual (counted when paid, or when invoiced), and tap Share BAS summary for a PDF.
Only the business owner sees it. On a computer, use the BAS tab on Reports.
1B and your net GST come from your own expense records — this is your sales side only, and a record-keeping aid, not tax advice.
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