A sole trader is a person who runs their own business as an individual. It's the simplest business structure in New Zealand - you don't need to register a company or file separate company tax returns. Your business income is simply added to your personal income tax return.
| Taxable Income | Tax Rate |
|---|---|
| $0 - $14,000 | 10.5% |
| $14,001 - $48,000 | 17.5% |
| $48,001 - $70,000 | 30% |
| $70,001 - $180,000 | 33% |
| $180,001+ | 39% |
Your taxable income = Total business income - Allowable business expenses
Tip: Keep a logbook for 3 months to calculate your business use percentage.
Calculate: Floor area of office ÷ Total house floor area
To claim GST on your expenses, you need valid tax invoices. And to charge GST, you must issue them. Using a dedicated invoice generator ensures you meet all IRD requirements automatically. For specific rules on what your invoices must include (especially for amounts over $200), see our updated NZ Tax Invoice Requirements 2026 guide.
compliant_invoice.pdf
You must register for GST if your turnover exceeds $60,000 in any 12-month period.
Under $60,000? You can still register voluntarily. Benefits include:
Note: Prices may seem higher to non-GST registered customers.
It's not legally required, but an accountant can save you money by identifying deductions you might miss and ensuring you're compliant. At minimum, consider an accountant for your end-of-year tax return.
You pay provisional tax in instalments throughout the year (if your tax bill is over $5,000), then file an individual tax return (IR3) after March 31. Any balance owing or refund is calculated based on your actual income.
Generally no. The IRD requires you to keep records of all business expenses for 7 years. Bank statements can support claims, but original receipts or invoices are best. Use Invio to keep digital records of all your invoices.
A sole trader is simpler and cheaper to run - you pay personal tax rates and there's no separate legal entity. A company has limited liability protection and pays a flat 28% tax rate, but has more compliance requirements and costs.