How much should you put aside for GST and tax?
Three numbers, about a minute. You get a weekly amount to move into a separate account for GST, income tax and ACC, so the IRD bill is covered before it lands.
Rough on purpose. It treats every cost as carrying GST, counts your costs for the weeks you trade, and uses New Zealand tax rates for 1 April 2026 to 31 March 2027. Nothing you type leaves this page.
Open the free check
Pop your email in and the check opens straight away. You'll get the number on this page, and I'll send it to you too if you want it.
See where it all goes. The full GST and Tax Set-Aside tool: $59 until 30 November 2026, then $99. Pay once, no subscription.
Or the Solo Kit: this tool and 4 more, $249. Bought one at a time: $335.
The full calculator turns it into a habit.
- One number to move every week, built from your real costs, with the ones that don't carry GST kept apart
- Your provisional tax dates and GST due dates, so you see when the bills land together
- The "put 20% aside" rule of thumb tested against your own numbers
- A tidy transfer amount you can set up once and forget
Want the why behind the number? Read the guide: What do I really earn an hour as a self-employed stylist in NZ?
General information, not financial or tax advice. It assumes you're a sole trader with no other income, treats every cost as carrying GST (wages, bank fees and loan interest don't, so your real GST figure may be a little higher), and ignores provisional tax timing.