Understanding NZ Income Tax Rates: A Complete Guide
A clear explanation of New Zealand's progressive income tax brackets for 2025-26 and 2024-25, including how to calculate your tax and effective rate.
Published 15 January 2026
New Zealand uses a progressive income tax system, meaning different portions of your income are taxed at different rates. Understanding how this works helps you plan your finances and avoid surprises at tax time.
The 2025-26 Tax Brackets
For the 2025-26 tax year (1 April 2025 – 31 March 2026), the income tax rates are:
| Income Range | Tax Rate |
|---|---|
| $0 – $14,000 | 10.5% |
| $14,001 – $48,000 | 17.5% |
| $48,001 – $70,000 | 30% |
| $70,001 – $180,000 | 33% |
| Over $180,000 | 39% |
These rates are identical to the 2024-25 year — no changes were made between the two years.
No Personal Allowance
Unlike Australia (which has an $18,200 tax-free threshold) or the UK (with a £12,570 personal allowance), New Zealand has no personal allowance. Tax applies from the very first dollar of income.
How Progressive Tax Works
The most important thing to understand is that each rate applies only to the income within that bracket — not your entire income.
Example: $80,000 income
- $14,000 × 10.5% = $1,470
- $34,000 × 17.5% = $5,950
- $22,000 × 30% = $6,600
- $10,000 × 33% = $3,300
- Total tax = $17,320
Your effective tax rate is $17,320 ÷ $80,000 = 21.65% — not 33%, even though 33% is your marginal rate.
Effective Rate vs Marginal Rate
- Effective rate: Total tax ÷ gross income. Reflects your actual average tax burden.
- Marginal rate: The rate that applies to your next dollar of income. Relevant when deciding whether to take on extra work.
Tax is Collected via PAYE
For employees, income tax is collected automatically through the PAYE (Pay As You Earn) system. Your employer calculates and deducts the right amount from each pay, using your IRD number and tax code.
Most employees don’t need to file a tax return. IRD may send you a tax assessment (formerly a personal tax summary) showing whether you owe more tax or are due a refund.
Key Dates
- 31 March: End of NZ tax year
- 1 April: Start of new tax year
- 7 July: Deadline to file individual income tax return (IR3)
Use our NZ Income Tax Calculator to see your exact tax breakdown.