New Zealand Reverse GST Calculator
New Zealand GST is 15% on most supplies. Divide NZ$ totals by 1.15 to get the amount excluding GST for bookkeeping and comparisons.
Enter the total you paid (GST included) and your rate.
Step 2 — Your breakdown
We reverse the tax using the standard formula:
Enter a total and tax rate to see your breakdown.
Consumer prices usually include GST. NZ$115 ≈ NZ$100 ex-GST + NZ$15 GST at the standard rate.
Zero-rated exports and exempt financial services follow separate rules—use invoice lines.
Wellington and Christchurch retailers quoting tax-inclusive NZD prices must split GST before comparing net quotes against Australian 10% GST pricing on the same pretax value.
GST-registered businesses file returns to Inland Revenue. Reverse GST on inclusive receipts before claiming input tax.
Auckland tourism operators reverse GST on tax-inclusive seasonal retail totals before IRD return filing on mixed taxable and zero-rated souvenir lines.
IRD GST returns require ex-GST and GST components to match tax invoices. Reverse GST on tax-inclusive vendor bills before input tax claims on purchases.
Exports are often zero-rated—domestic receipts still show 15% on taxable goods. Do not apply 1.15 to export invoice lines showing 0% GST.
Ex-GST = inclusive ÷ 1.15.
Trade Me and local marketplace gross NZD settlements need per-order 15% splits before seller P&L on net merchandise revenue.
Auckland tourism operators reversing GST on tax-inclusive seasonal retail should split zero-rated souvenir exports from 15% taxable domestic lines on mixed invoices.
| Rate | Category | Examples |
|---|---|---|
| 15% GST | GST | New Zealand goods and services tax. |
| Varies | Sector exceptions | Financial services, healthcare, and exports may use different treatment. |
NZ$115 inclusive.
Ex-GST NZ$100 | GST NZ$15
IRD registration and returns when required. GST-registered businesses should keep tax invoices linking inclusive purchases to ex-GST and GST for IRD input tax claims.
15% on most taxable supplies.
Ex-GST NZ$100.
Australia is 10%; NZ is 15%.
Often zero-rated for exporters—buyer receipts differ.
Reverse 15% per order from inclusive settlement totals before net revenue P&L.
Tourism receipts may mix zero-rated exports and 15% taxable domestic lines—split before dividing.
GST-registered filers should tie ex-GST purchases to tax invoices for input tax claims.
Consumer prices include 15% GST—divide NZ$ totals by 1.15 for ex-GST value.
Zero-rated export lines differ from 15% domestic receipts—read each invoice tax row.
