New Zealand GST Calculator — Add or Remove 15% GST (IRD)
Calculate New Zealand GST at 15%. Add GST to net prices or extract the GST portion from GST-inclusive prices for business or consumer use.
New Zealand charges Goods and Services Tax (GST) at a flat rate of 15% on almost all goods and services — one of the broadest GST systems in the world with very few exemptions. GST is administered by Inland Revenue (IRD). Businesses with annual turnover above NZD 60000 must register for GST charge it on sales file returns (monthly two-monthly or six-monthly) and can claim back GST paid on business purchases. Voluntary registration is allowed below NZD 60000 and can benefit businesses investing heavily in GST-charged inputs. Unlike the EU model NZ GST applies to almost everything including food (no reduced rate) financial services (partly) and most digital imports. Our calculator adds 15% GST to a net price or extracts the GST portion from a gross GST-inclusive price.
How do I calculate GST from a gross price in NZ?
To extract 15% GST from a GST-inclusive price divide by 1.15. Example: NZD 115 ÷ 1.15 = NZD 100 net; GST = NZD 15. A quicker method: multiply the gross price by 3/23 to get the GST portion. NZD 115 × 3/23 = NZD 15. To add GST to a net price multiply by 1.15. A NZD 500 net sale becomes NZD 575 gross with NZD 75 GST. GST-registered businesses invoice gross but account for the GST separately and remit the net amount to IRD after subtracting input GST paid on business purchases.
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How Tax Calculation Works
Income tax is calculated on your total taxable income after deducting eligible exemptions and deductions from your gross income. The tax is applied progressively — you pay a lower rate on initial income slabs and higher rates only on income that exceeds each threshold. This means moving into a "higher tax bracket" does not mean your entire income is taxed at the higher rate. Understanding marginal vs effective tax rate is crucial: your marginal rate applies only to the last rupee earned, while your effective rate is the average across all slabs.
Tax-Saving Strategies
Under the old regime, maximize deductions: Section 80C allows up to Rs 1.5 lakh through PPF, ELSS, EPF, and life insurance. Section 80D covers health insurance premiums up to Rs 25,000 (Rs 50,000 for senior citizens). Section 80CCD(1B) offers an additional Rs 50,000 deduction for NPS contributions. Home loan interest up to Rs 2 lakh is deductible under Section 24. Under the new regime, the Rs 75,000 standard deduction and lower slab rates may save you more if your total deductions are below Rs 3.75 lakh. Calculate under both regimes before choosing.
Key Information
| Parameter | Details |
|---|---|
| Standard Rate | 15% (single rate since 2010) |
| Registration Threshold | NZD 60000 annual turnover |
| Zero-Rated | Exports; duty-free sales |
| Filing Frequency | Monthly 2-monthly or 6-monthly |
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Use Calculator NowFrequently Asked Questions
How do I calculate GST from a gross price in NZ?
To extract 15% GST from a GST-inclusive price divide by 1.15. Example: NZD 115 ÷ 1.15 = NZD 100 net; GST = NZD 15. A quicker method: multiply the gross price by 3/23 to get the GST portion. NZD 115 × 3/23 = NZD 15. To add GST to a net price multiply by 1.15. A NZD 500 net sale becomes NZD 575 gross with NZD 75 GST. GST-registered businesses invoice gross but account for the GST separately and remit the net amount to IRD after subtracting input GST paid on business purchases.
Is everything subject to GST in New Zealand?
Almost everything — NZ GST is deliberately broad with minimal exemptions unlike the UK VAT system. Food is fully taxable at 15%. Most financial services are exempt (banks do not charge GST on interest margins but cannot reclaim input GST either). Residential rent is exempt. Fine metals and some sale of businesses as going concerns are zero-rated (0% — reclaim input GST). Exports are zero-rated. Gambling output is GST-free. International freight and passenger transport are zero-rated. Most common exemptions are residential property sales and residential rent — almost everything else a consumer buys includes 15% GST in the sticker price.
Do I need to register for GST in New Zealand?
Mandatory registration applies when your taxable activity turnover exceeds NZD 60000 in the past 12 months or is expected to in the next 12 months. Voluntary registration is allowed below this threshold. Registration benefits: you can reclaim input GST on business purchases (useful if you buy expensive equipment). Downsides: you must add 15% to your prices which may make you less competitive against non-registered competitors in consumer markets. Registration is done online through myIR at ird.govt.nz. You choose your filing frequency based on turnover: six-monthly below NZD 500K two-monthly most businesses and monthly above NZD 24M.
Which tax regime should I choose — old or new?
Choose the new regime if your total deductions are below Rs 3.75 lakh. Choose the old regime if you claim HRA, 80C (Rs 1.5L), 80D, home loan interest, and NPS totaling more than Rs 3.75 lakh. Salaried employees can switch every year.
Is income up to Rs 12 lakh really tax-free?
Under the new regime for FY 2025-26, income up to Rs 12 lakh is effectively tax-free due to Section 87A rebate. After Rs 75,000 standard deduction, taxable income is Rs 11.25 lakh which qualifies for full rebate. However, income even slightly above Rs 12 lakh loses this entire benefit.
How can I save more tax legally?
Under the old regime, maximize 80C (Rs 1.5L via PPF, ELSS, EPF), 80D (Rs 25K-50K for health insurance), 80CCD(1B) (Rs 50K for NPS), HRA exemption, and home loan interest (Rs 2L under Section 24).
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Last updated: March 2026