Home>GST Guide NZ>The $60,000 GST Threshold: A Complete Guide for NZ Businesses
Verified for 2026 Tax Year

The $60,000 GST Threshold Guide

Crossing the line mid-year? Our expert guide analyzes mandatory registration rules, strategic timing, and how to protect your cashflow.

The 10-Second Rule

GST registration is mandatory if your total sales exceed $60,000 in any rolling 12-month period. It is NOT based on the financial year; you must check your last 12 months at the end of every single month.

The Two Mandatory Tests

1. The Backward Look

Look at your history.

Has your turnover exceeded $60k in the last 12 months?
OR

2. The Forward Look

Predict your future.

Will you exceed $60k in the next 12 months?

The "Magic Number" Explained

In New Zealand, $60,000 is the critical threshold for Goods and Services Tax (GST). If your business turnover—your total sales before expenses—hits this mark, you are legally required to join the GST system.

Whether you are a sole trader, a company, or a partnership, the rules are identical. Failing to register within 21 days of crossing the threshold can lead to significant back-dated tax bills.

Should You Register Voluntarily?

The Case for "Yes"
  • Claim Refunds: Get 15% back on startup costs (laptops, vehicles, tools).
  • B2B Power: Business clients don't care about GST; they just claim it back.
  • Growth Ready: No "price shock" for customers later on.
The Case for "Wait"
  • B2C Pricing: You stay 15% cheaper for everyday consumers.
  • Admin Load: No two-monthly GST filings to worry about.
  • Mental Bandwidth: Focus purely on sales in your first year.

Turnover Tiers & Actions

Turnover Level Status Recommended Action
$0 – $30,000 Voluntary Wait unless high setup costs
$30,000 – $59,999 Voluntary Register if B2B; monitor closely
$60,000+ MANDATORY Register within 21 Days

The Danger Zone: Late Registration

If the IRD finds you should have been registered six months ago, they will backdate your registration and demand 15% GST on **all** past sales immediately—even if you never collected it from your customers. This is the fastest way to bankrupt a small business.

RISK: 15% Penalty + Interest + Back-Dated Tax

Frequently Asked Questions

Does the $60,000 include GST?

No. The $60k threshold applies to your gross turnover (total income before any expenses). Once you are registered, you then add 15% on top of your prices.

What if my income is from overseas?

Zero-rated supplies (like exports) still count towards the $60,000 threshold. You must register even if you end up charging 0% GST to everyone.

Can I deregister if my income drops?

Yes. If you believe your turnover for the next 12 months will be reliably under $60,000, you can apply to cancel your registration via myIR.