Short definitions aligned with IRD terminology used on this hub and the calculator. Example figure: $80,000 gross is our default worked example.
PAYE (Pay As You Earn)
New Zealand's income tax withholding system. Your employer deducts tax from every pay packet before you receive it, using the IRD's published PAYE tables.
ACC Earner Levy
A levy at 1.75% of gross income (2026) that funds the Accident Compensation Corporation. ACC provides no-fault cover for injuries in NZ — in exchange, you cannot sue for personal injury.
KiwiSaver
A workplace savings scheme where you contribute 3%–10% of gross pay and your employer adds a minimum 3%. Funds are locked in until age 65 (with exceptions for first-home purchase or serious hardship).
IETC (Independent Earner Tax Credit)
A tax credit of up to $520/year for individuals earning $24,000–$70,000 who don't receive Working for Families credits. Full $520 credit from $24,000–$66,000; phases out to zero at $70,000. Applied through the ME tax code.
Marginal Rate
The PAYE rate that applies to the next dollar of income. In NZ 2026, this ranges from 10.5% to 39% depending on which band your income falls into.
Effective Tax Rate
Total modelled deductions (PAYE after IETC, plus ACC, plus KiwiSaver and any student loan you include) ÷ gross income. Always lower than your marginal PAYE rate because lower brackets apply to the first portions of income.
Student Loan Repayment
Compulsory deduction of 12% on income above $24,128 (threshold frozen from 2025/26), collected through PAYE. Not a tax — goes directly toward reducing your IRD student loan balance.
PIE (Portfolio Investment Entity)
A regulated investment fund structure (including KiwiSaver funds). PIE investment returns are taxed at your Prescribed Investor Rate (PIR), capped at 28%.
Working for Families (WFF)
A set of tax credits for families with dependent children in NZ. Income-tested and administered by the IRD separately from PAYE.
myIR
The IRD's online portal where you can view your income tax assessment, update your tax code, apply for a savings suspension, and check your student loan balance.
Prescribed Investor Rate (PIR)
The rate at which your PIE income (KiwiSaver, managed fund returns) is taxed. Based on your income: 10.5%, 17.5%, or 28%. Must be set correctly to avoid under- or over-paying tax on investment returns.
Tax Code
A code (M, ME, S, SB, SH, ST, etc.) provided to your employer on an IR330 form that tells them how much PAYE to deduct. Using the wrong code is the most common cause of an unexpected tax bill or missed refund.
IR330
The IRD form used to declare your tax code to a new employer. You must complete this when starting a job. Without one, your employer withholds PAYE at the no-notification rate — the highest possible rate.
IRD Number
Your unique 8 or 9-digit tax identifier issued by the Inland Revenue Department. Required to work, receive KiwiSaver contributions, open a bank account, and file any NZ tax obligations.
Provisional Tax
Advance income tax payments made by self-employed individuals or those with income not subject to PAYE. Paid in three instalments per year to spread the tax liability. Required if expected residual income tax exceeds $5,000.
Schedular Payment
A payment to a contractor where the payer withholds tax at a prescribed rate (commonly 20%) rather than the contractor paying it themselves. Common in labour hire, advertising, and certain professional services.
NZ Super (New Zealand Superannuation)
The government-funded pension paid to eligible people aged 65+ who have lived in NZ for at least 10 years since age 20. Approximately $878/week after tax for a single person living alone (2026). Taxable income subject to PAYE.
Transitional Resident
A new NZ tax resident who has not been resident in NZ for the previous 10 years. Eligible for a four-year exemption from NZ tax on most foreign-sourced income. A significant tax planning opportunity for skilled migrants.