Kiwi Calculator: NZ Money

Kiwi Calculator does the money maths New Zealanders do every week, in one simple, beautifully designed app. Updated for the 2026/27 tax year. TAKE-HOME PAY See what actually lands in your account each week, fortnight, month or year. Includes PAYE, the ACC earners' levy, KiwiSaver, student loan and the independent earner tax credit (IETC). Works from a salary or an hourly rate. MORTGAGE Weekly, fortnightly or monthly repayments, the total interest, and a chart of your balance over time. See how much time and interest paying a little extra saves. GST Add or remove 15% GST in one tap. The number pad stays on screen and the answer copies straight to your clipboard. Made for sole traders, tradies and anyone checking an invoice. LOANS AND HIRE PURCHASE Car finance, personal loans and HP. Add your deposit, establishment fee and account fees to see the real cost of borrowing and the interest…