New Zealand GST Calculator

Add GST to a net price or extract it from a gross amount at New Zealand's verified standard rate of 15% (reduced: 9% (accommodation 28+ days) / 0% (exports)). All math runs locally in your browser.

15% standard GST rate
Reduced rates
9% (accommodation 28+ days) / 0% (exports)
Source
Inland Revenue (IRD)
Verified
— how we verify · changelog

Official IRD page states 'GST is charged at a rate of 15%'. Rate unchanged since 1 Oct 2010; no change announced for 2026/27.

Rate

How the math works

Add GST (forward): gross = net × (1 + rate ÷ 100)

Extract GST (reverse): net = gross ÷ (1 + rate ÷ 100)

Worked example at New Zealand's standard rate: net 100 × (1 + 15 ÷ 100) = 115.00 gross, of which 15.00 is GST.

Issuing a GST-compliant invoice?

Rates are only half of it — what must appear on the invoice (tax numbers, rate per line, reverse-charge wording for cross-border B2B) is covered in the VAT & GST invoicing guide, and the free VAT invoice generator produces a compliant PDF. The full rate dataset behind this page (42 jurisdictions, source per row) is downloadable: CSV · JSON (CC BY 4.0).

New Zealand GST FAQ

What is the standard GST rate in New Zealand?

15%, per Inland Revenue (IRD) (verified 2026-06-12). Reduced rates: 9% (accommodation 28+ days) / 0% (exports). Rates change — always confirm against the linked source before filing anything.

How do I add GST to a net price?

Multiply the net amount by (1 + rate ÷ 100). Reverse (extracting from a gross, tax-inclusive amount): divide by (1 + rate ÷ 100). The calculator on this page does both with New Zealand's verified rate preloaded.

Where does this rate come from?

Every rate in our dataset cites the source it was verified against — for New Zealand, that is Inland Revenue (IRD) (linked on this page), checked on 2026-06-12. The full 42-jurisdiction dataset is downloadable under CC BY 4.0, and every verification pass is logged in our public changelog.

Not tax advice. Rates and rules change; the verification date above tells you when we last confirmed this figure, not that it is still current today. Confirm against the linked official source before filing or invoicing.