Tax & Finance Calculators
Free NZ tax and finance calculators for tradies — GST, PAYE, provisional tax, ACC levy, depreciation, vehicle mileage and more.
NZ GST Calculator
Free NZ GST calculator — add or remove 15% GST instantly on any invoice, quote or expense. Get the GST-exclusive, GST-inclusive and GST amounts in seconds.
PAYE Employee Cost Calculator — NZ
Calculate the true cost of employing someone in NZ — PAYE, ACC, KiwiSaver, holiday pay, and total employer cost per hour and per year.
NZ Provisional Tax Calculator 2025–26
Calculate your NZ provisional tax instalments using the standard or estimation method — IRD dates, 105% uplift, and safe harbour built in.
NZ Provisional Tax Top-Up & Safe Harbour Calculator
Calculate whether you qualify for NZ provisional tax safe harbour, and the exact top-up needed to avoid IRD use-of-money interest (UOMI).
Subcontractor Tax & GST Calculator — NZ
Free NZ subcontractor tax calculator — work out GST, income tax, withholding tax and net earnings for self-employed tradies and subbies on schedular payments.
ACC Levy Calculator NZ — Self-Employed Tradie Levies 2025/26
Calculate your ACC levies as a self-employed NZ tradie — work levy, earner levy, and working safer levy based on your trade and income.
NZ Tool & Equipment Depreciation Calculator
Calculate the annual depreciation deduction for your tools and equipment using the IRD diminishing value method. Updated for NZ 2026 tax rules.
IRD Kilometre Rate Calculator — NZ 2025–26
Free NZ IRD kilometre rate calculator for 2025–26. Enter your business km and vehicle type to get your exact Tier 1 / Tier 2 tax deduction. Updated rates.
NZ KiwiSaver Employer Cost Calculator 2026
Calculate the true employer cost of KiwiSaver including the 3.5% contribution and ESCT (employer superannuation contribution tax) for NZ tradies.
NZ Leave Entitlements Calculator — Annual Leave, Sick Leave & Public Holidays
Calculate the full value of statutory leave entitlements for NZ employees — annual leave, sick leave, public holidays, and bereavement leave.
NZ Holiday Pay Calculator — Holidays Act 2003
Calculate correct annual leave payouts for NZ employees using the Holidays Act 2003 — greater of ordinary weekly pay or average weekly earnings.
Overtime & Holiday Pay Calculator — NZ
Calculate overtime pay, time-and-a-half, double time, and public holiday rates for NZ employees and contractors. Based on current employment law.