Install it on your desktop
Install the Tradie Calculator as a desktop app in Google Chrome. It launches in its own window — no tabs, no clutter.
Tradie Calculators
for NZ.
Tap one to start — GST, quotes, mileage, tax, margin & markup. Built by IRD-registered tax agents at NZ Taxation Ltd.
Pick a calculator above.
Not sure which one? Here's what each does — but the easiest is just to tap one.
Add 15% on, strip 15% out, or split a total. Three clicks, done.
Labour hours × rate + materials + markup. Spits out a quote your client can read.
Stop confusing the two. Know exactly what % to add — and what's actually left in the bank.
Not sure if an expense is claimable? Answer 3 questions — we'll tell you what IRD will likely accept.
Plan every dollar — business overheads, tax set-aside, personal life. Spot a shortfall before it bites.
Log km against IRD rates. Ready for tax time.
Plug in your year. We'll map every bracket and tell you the take-home, weekly and yearly.
Sparkies. Chippies.
Plumbers. Painters.
Sole traders.
Whether you run a one-van operation in Hamilton or quote fitouts in Auckland, Tradie Calculator keeps your numbers tidy — built around NZ GST, IRD mileage rates and progressive PAYE.
Ready to tidy up your books?
Free to start. No credit card. Your data stays on your account.