Tax rule NZ
New Zealand's tax year: 1 April to 31 March
The tax year is from 1 April to 31 March, and Bilbx's Tax Lab totals your receipts by that year.
The tax year
1 April to 31 March
Checked against Inland Revenue's own pages on . This is the figure Bilbx uses.
The rule
The tax year is from 1 April to 31 March.
What Inland Revenue says
“The tax year is from 1 April to 31 March.”
How Bilbx applies it
- Tax Lab, part of Bilbx Premium, totals your receipts by tax year, from 1 April to 31 March.
- Its export for your accountant covers the same year, receipt by receipt.
Worked examples
Bilbx's own tests run these exact cases against the website and the app.
| Receipt dated | Belongs to the year |
|---|---|
| 31 March 2026 | 1 April 2025 to 31 March 2026 |
| 1 April 2026 | 1 April 2026 to 31 March 2027 |
Check a receipt
Enter a receipt to see what Bilbx does with it under New Zealand's rules. It is worked out in your browser by the same code the app runs, and nothing you enter is sent or stored.
Enter a date and a total to see the answers.
Sources
Spotted something that doesn't match Inland Revenue's guidance?
Every sentence in the rule is checked against Inland Revenue's own guidance, quoted beneath it and linked above. Last checked . Rules version 60f9162250af. Terms.
More for New Zealand: every tax rule Bilbx applies and guides on receipts and tax records.