Business Calculators
13 free business calculators for New Zealanders.
For sole traders, contractors and NZ small businesses: company tax 28%, GST returns, schedular payments (IR330C), invoicing, ACC levies, FBT, ESCT, and employee on-cost calculations.
GST Return Calculator
Calculate your GST return for 1-month, 2-month, or 6-month filing periods. Work out GST collected minus GST paid to find what you owe or are owed by IRD.
2026-27 FYSole Trader Tax Calculator
Calculate your income tax, ACC levies, and GST obligations as a sole trader in NZ. Includes allowable deductions and provisional tax estimates.
2026-27 FYIRD Depreciation Rate Finder
IRD depreciation rate finder for NZ business assets. Diminishing value (DV) and straight-line (SL) methods. Vehicles, computers, equipment, plant. FY 2026-27.
GST Price Converter
Instantly toggle between GST-inclusive and GST-exclusive prices. A quick tool for tradies, retailers, and anyone quoting prices in New Zealand.
Company Tax Calculator
Work out company income tax at the NZ corporate rate of 28%. Calculate taxable income after expenses and deductions for your limited company.
2026-27 FYACC Levy Calculator
Estimate your ACC levies as an employee or self-employed earner. Includes earner levy, work levy, and working safer levy based on your industry classification.
Invoice Calculator
Create GST-inclusive invoices and calculate the correct amounts. Work out the GST component, apply discounts, and generate invoice totals for your NZ business.
Employee Cost Calculator
Calculate the true cost of hiring an employee in NZ. Includes salary, KiwiSaver employer contributions (3.5%), ACC levies, and other on-costs.
Profit Margin Calculator
Calculate gross, operating, and net profit margins for your business. Useful for pricing, benchmarking against industry averages, and tracking profitability.
Director's Pay vs Dividends Calculator
Compare paying yourself as a salary vs dividends from your NZ company. Includes PAYE/ACC/KiwiSaver on salary vs imputation credits on dividends.
2026-27 FYNanny / Au Pair Payroll Calculator
Calculate the true cost of hiring a nanny in NZ as an IR56 household employer. Includes PAYE, KiwiSaver 3.5% employer, ACC domestic levy, and holiday pay.
FBT Calculator
Calculate fringe benefit tax on company vehicles, car parks, low-interest loans, and other benefits. Includes EV-exempt rates and quarterly filing.
2026-27 FYBreak-Even Analysis Calculator
Find out how many units or how much revenue you need to cover your fixed and variable costs. Essential for pricing decisions and business planning.