GST registration looks like a simple yes/no, but the timing and the voluntary-registration call can cost or save you real money. This free decision guide walks you through the $60,000 threshold, the trade-offs, and the moment you actually have to act.
What's in the guide
The guide is a short, plain-English walkthrough that turns one of the most common questions we hear into a clear answer: do I need to register for GST, and if not, should I anyway? It is built around real New Zealand rules, not generic advice copied from somewhere else.
Inside you will find:
- A one-page decision flow that takes you from your turnover to a clear next step.
- A plain explanation of the $60,000 GST registration threshold and what 'turnover' actually means (it is your taxable supplies over any 12-month period, not a tidy financial year).
- The difference between being required to register and choosing to register early, with the cashflow consequences of each.
- A short checklist of what changes the day you register: 15% added to your prices, GST returns to file, and input credits you can start claiming.
- Common traps, such as forgetting that a single large one-off contract can tip a sub-threshold business over the line and trigger a backdated obligation.
It is intentionally short. You should be able to read it in one sitting and come away knowing exactly what to do next.
Who it's for
This guide is written for people who are close to the line, or who suspect they might be:
- Sole traders and freelancers whose income is climbing and who keep wondering when GST becomes their problem.
- New business owners deciding whether to register from day one or wait until they have to.
- Side-hustlers who started small and have quietly grown past the point where they should be paying attention.
- Contractors weighing whether voluntary registration makes them look more established to business clients who can claim the GST back anyway.
If your customers are mostly other GST-registered businesses, registering early often costs you nothing and lets you reclaim GST on your own purchases. If your customers are mostly the public, adding 15% can make you 15% more expensive overnight. The guide helps you see which side of that line you are on.
The decision flow
The flow inside the guide follows the same logic we use in a review. In short:
| Your situation | What it usually means |
|---|---|
| Turnover over $60,000 in the last 12 months | Registration is required. You must register and start charging GST. |
| You expect to pass $60,000 in the next 12 months | Registration is required from the point you reasonably expect to cross it. |
| Under $60,000, customers are GST-registered businesses | Voluntary registration often makes sense. You reclaim input GST and your clients are unaffected. |
| Under $60,000, customers are the general public | Staying unregistered usually keeps you price-competitive. Revisit as you grow. |
The threshold is rolling, not annual. It is measured over any 12-month window, so a strong few months can put you over even if your tax-year total looks modest. The guide shows you how to check this properly rather than waiting for an IRD letter.
It also covers the practical side once you decide to register: choosing a filing frequency, picking an accounting basis (invoice or payments), and setting your first return period so you are not caught out.
Download it free
The guide is free. Add your email in the form on this page and we will send it straight over, along with a short note on how to read it. There is no obligation and no sales call unless you ask for one.
If after reading it you would rather just talk it through, you can book a free 20-minute tax review and we will tell you, in plain English, whether registering now is the right move for your numbers.
This is general information only, current at the time of writing, and not personalised tax advice. Your situation may differ. Confirm the detail with us or check ird.govt.nz before you act.
Where to go next
Registering for GST rarely sits on its own. Once you are over the threshold, provisional tax usually follows, and good record-keeping becomes the difference between a quick return and a stressful one. A few useful next steps:
- Read our explainer on GST and provisional tax to see how the two connect once your business is established.
- If you are just starting out, our sole-trader tax starter checklist covers the IRD set-up steps in order.
- Want a hand applying it to your business? See how we work or get in touch.
In plain English: if your rolling 12-month turnover is near $60,000, this guide tells you whether to register, when, and what changes the day you do.
This is general information, not personalised tax advice.See our full disclaimer.