Side Hustle GST Registration Calculator

This calculator checks whether your side hustle has to register for GST in New Zealand by measuring your turnover against the sixty thousand dollar threshold. GST registration is compulsory once your turnover from a taxable activity exceeds sixty thousand dollars in any twelve-month period, or once you reasonably expect it to, and this catches out a lot of people whose side income quietly grows past the line without them noticing. It applies to ongoing activities run with the intention of making money, such as selling goods online, contracting, ridesharing or renting out short-stay accommodation, and the turnover counts even when the side hustle sits alongside a regular salaried job. You enter your average monthly revenue, and the calculator projects your annual turnover, tells you whether you must register, and shows how much headroom you have before you hit the threshold, or how far over it you already are. Use it to see whether registration has become compulsory and to plan ahead as your side hustle grows, since registering means adding GST to your prices and filing returns, but also lets you claim GST on your business costs. Below the threshold you can still register voluntarily if it suits you. This is general information, not tax advice; confirm your position with IRD.

Registration is compulsory above $60,000 of turnover in any 12 months, or when you expect to exceed it. You can register voluntarily below it. General information, not tax advice.