New Zealand GST calculator
Add 15% GST to a price, or work out how much GST is inside a GST-inclusive total. New Zealand rates, the exact figures Inland Revenue expects. No sign-up.
Running a business? Wrightly tracks your real GST automatically from your receipts and invoices, all year.
- Amount excluding GST
- $100.00
- GST (15%)
- $15.00
- Amount including GST
- $115.00
Adding and removing GST, by hand
Adding GST to a price
GST is 15%, so multiply the GST-exclusive amount by 1.15. A $100 service becomes $115, and $15 of that is GST.
Finding the GST inside a total
To pull the GST out of a GST-inclusive total, multiply by 3 and divide by 23 (the same as 15 ÷ 115). From $115 that is $115 × 3 ÷ 23 = $15, leaving $100 excluding GST.
When you need to register
You must register for GST once turnover passes $60,000 in any 12-month period. Below that, registering is optional. Some sole traders register voluntarily to claim GST back on purchases.
Filing your GST return
Once you are registered, you file a GST return every two months or every six months, depending on turnover. The return adds up the GST you charged on sales, takes off the GST on your purchases, and you pay or claim back the difference. So the 15% you add to a price is not yours to keep. You hold it for Inland Revenue and hand it over each period, less the GST on what you bought.
Zero-rated and exempt sales
Not every sale carries 15%. Exports and a few other supplies are zero-rated, so you charge 0% but still claim the GST on your costs. Residential rent and most financial services are exempt, which means no GST on the sale and no claim on the costs behind it. Standard sales, the ones this calculator handles, sit at 15%.
GST questions
- How much is GST in New Zealand?
- GST in New Zealand is a flat 15%. It has been 15% since 1 October 2010, when it rose from 12.5%.
- How do I add GST to a price?
- Multiply the GST-exclusive amount by 1.15. For example, $100 plus GST is $100 × 1.15 = $115, of which $15 is GST.
- How do I remove GST from a GST-inclusive price?
- To find the GST content of a GST-inclusive total, multiply it by 3 and divide by 23 (the same as 15 ÷ 115). For example, $115 × 3 ÷ 23 = $15 of GST, leaving $100 excluding GST.
- When do I need to register for GST?
- You must register for GST once your turnover passes $60,000 in any 12-month period, or if you already charge GST in your prices. Below $60,000 you can still register voluntarily.
- Do sole traders have to charge GST?
- Only if you are GST-registered. Once registered you add 15% GST to your sales and can claim back the GST on your business purchases; if you are not registered, you neither charge nor claim GST.
- How often do I file a GST return?
- Most small businesses file every two months or every six months, depending on turnover. Each return adds up the GST you charged, takes off the GST on your purchases, and you pay or claim back the difference.
- What is the difference between zero-rated and exempt sales?
- Zero-rated sales, such as exports, are taxable at 0%, so you charge no GST but still claim the GST on your costs. Exempt sales, such as residential rent and most financial services, carry no GST and no claim on the costs behind them.
- Can I claim GST back on business purchases?
- Yes, once you are registered. You claim the GST on what you buy for the business and offset it against the GST you charged, so you only pay Inland Revenue the difference.
Wrightly is record-keeping software, not tax advice. For your own situation, check ird.govt.nz/gst or your accountant.
Keep going
- Income tax calculator work out your tax and ACC on the profit left after GST.
- GST in Wrightly see how your real GST return builds itself as you go.