Sole traders in New Zealand report business profit on their IR3 individual tax return and pay tax at personal marginal rates, plus the ACC earners' levy. GST applies once turnover reaches NZ$60,000. Here are the 2025-26 headline figures.
Estimate your New Zealand tax below. For the full breakdown, open the dedicated New Zealand calculator.
Estimated total tax
NZ$8,918
Effective rate 17.2% on NZ$52,000 net profit
GST: above NZ$60,000 you must register, charge 15% GST and file GST returns. Sole traders report business profit on their IR3 individual tax return and usually pay provisional tax in instalments once residual income tax passes NZ$5,000. The ACC earners' levy shown is a simplified estimate.
Estimates use the 2025-26 IRD income-tax brackets (no tax-free threshold) plus the ACC earners' levy (1.75% up to the maximum liable earnings). GST (15%) is separate. Simplified estimate for planning only — not tax advice.
You pay individual income tax on your net business profit at marginal rates (10.5% up to $15,600, then 17.5%, 30%, 33% and 39% — there is no tax-free threshold), plus the ACC earners' levy. There is no separate company tax for sole traders.
Once your annual turnover reaches or is expected to reach NZ$60,000. You then charge 15% GST on taxable sales and file GST returns. Below the threshold, registration is optional.
From your second year, if your residual income tax was over NZ$5,000, Inland Revenue asks you to pre-pay next year's tax in instalments. Setting aside 25–30% of each payment covers it comfortably.
Figures are current headline guidance for the self-employed, verified against official sources — not tax advice. Check current rules or an accountant for your situation.