How invoice numbers work

Last updated: 2 Nov 2026

Each invoice gets the next number in your own series, like WF/2026-27/0001. You cannot type or change the number.

Steps

1. Create an invoice as usual.
2. The number is added when you click Create invoice.
3. Your series starts again from 0001 each financial year (April to March).
4. Cancelled invoices keep their number, which is normal for GST records.

Common mistakes

• Expecting a cancelled number to be reused.
• Using another app's numbers for the same sales, which can create gaps.

Useful links

• My invoices