Business Kilometres Tax Saving Calculator — New Zealand

Calculate your business mileage tax deduction as a New Zealand self-employed individual or sole trader. Enter the number of business kilometres you travel and see your allowable deduction using the official Inland Revenue approved mileage rate.

Current Inland Revenue Mileage Rate (2024/25)

  • Approved rate: NZ$1.04/km for the first 10,000 kilometres, then NZ$0.38/km
  • Eligible vehicles: Cars, vans, motorcycles, and bicycles (rates vary)
  • Journey types: Business trips only — commuting does not qualify
  • Record keeping: Date, start/end location, purpose, and kilometres for each trip

How to Use the New Zealand Mileage Calculator

  1. Enter your total business kilometres for the tax year
  2. Select your vehicle type
  3. Enter your marginal tax rate (or use the default estimate)
  4. See your allowable deduction and estimated tax saving

Related New Zealand Tax Tools

  • Free New Zealand Tax Calculator
  • Home Office Calculator
  • Day Rate Calculator
  • Tax Knowledge Base