Launch price on every single tool until 30 November 2026. Kits are always one plain price.

Every business

GST and Tax Set-Aside Calculator

The exact amount to move into a tax account every week, so GST, income tax and ACC are sitting there when the bill comes.

$59 launch price until 30 November 2026, then $99 · buy once, NZD · about 10 minutes to fill in

Sample: sole trader studio, $3,000 a week, 46 weeks
Move to your tax account each week, rounded up$730
GST to set aside a week
$288.09
Income tax and ACC a week
$434.53
Share of every dollar taken
24.1%
A 20% rule falls short by
$5,641
Each provisional instalment
$4,900

What it tells you

  • One weekly transfer that covers your GST, income tax and ACC, plus the share of every deposit that adds up to
  • What each GST return will be, when it's due, and whether your 20% rule of thumb actually covers you
  • Whether you pay provisional tax this year, how much each instalment is and the dates, plus a heads-up for your first year off wages

Have these handy

  • A normal week's takings
  • Your weekly costs, split into ones with GST and ones without
  • How often you file GST
  • Last year's income tax bill, from your IR3 or myIR

The sample panel shows the tool's real answer for its built-in sample numbers. Type over them with your own.

Sound familiar?

“Every time the GST comes round I'm scraping it together from the next week's takings.”
“Someone told me to put 20% aside. I've no idea if that's right for me.”

Your numbers stay yours

Everything you type saves in your own browser. Nothing is sent to us. Save a PDF report any time, or back up your numbers to open on another device.

General information to help you make your own decisions, not financial, tax, legal or employment advice. Check anything that matters with your accountant. Prices are in NZ dollars. No GST is charged.

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