New Zealand tools and calculators
New Zealand has a single national tax system run by Inland Revenue, with no state or provincial layer, so one set of rules applies to the whole country. These tools apply the published New Zealand rates, formats and thresholds.
This hub lists the 14 tools on TNAADO Tools that are specific to New Zealand. The largest groups are New Zealand Tools (6), Canadian Tools (4) and Calculators (3). Every page is free, runs in your browser and names the rule or register it uses, so you can check the source before relying on the number.
New Zealand Tools · 6 tools
KiwiSaver Calculator 2026-27: Contributions, ESCT and Balance
KiwiSaver calculator for 2026-27: your 3.5% contribution, employer contribution after ESCT, the government contribution and a projected balance from…
NZ ACC Earners Levy Calculator 2026-27 (1.75%)
Work out your ACC earners' levy for 1 April 2026 to 31 March 2027: 1.75% of earnings up to $156,641, a maximum of $2,741.22. Also 2025-26 and 2027-28.
NZ Bonus Tax Calculator 2026-27: Tax on a Lump Sum
NZ bonus tax calculator for 2026-27 using Inland Revenue’s extra pay rates: tax withheld on a bonus including ACC, optional KiwiSaver and student…
NZ Hourly to Salary Calculator After Tax 2026-27
Convert an hourly rate to an annual salary in New Zealand and see take-home pay after PAYE, ACC and KiwiSaver for 2026-27, with weekly and…
NZ PAYE Calculator 2026-27: Take-Home Pay After Tax and ACC
Free NZ PAYE calculator for 2026-27: income tax, ACC earners’ levy, KiwiSaver at 3.5% and student loan, with yearly, monthly, fortnightly and weekly…
NZ Student Loan Repayment Calculator 2026-27 (12%)
See your NZ student loan repayment from pay: 12% over the $464 weekly, $928 fortnightly or $2,010.66 monthly threshold, main or secondary job.
Canadian Tools · 4 tools
HPI Number Validator New Zealand (CPN, Org, Facility)
HPI number validator for New Zealand: checks a CPN, organisation (G) or facility (F) identifier with Health NZ's modulus 11 routine. Browser-only.
New Zealand IRD Number Validator
Free New Zealand IRD number validator. Checks the real modulus-11 check-digit algorithm Inland Revenue publishes — primary weights with a…
NHI Number Validator New Zealand (Check Digit Checker)
NHI number validator for New Zealand: checks the old (mod 11) and new (mod 23) formats with Health NZ's published routine. Runs in your browser.
NZBN Validator: New Zealand Business Number
Check a New Zealand Business Number (NZBN): 13 digits plus the GS1 modulo 10 check digit used for GLNs. Browser-only; does not query the NZBN…
Calculators · 3 tools
IRD Penalty Calculator Canada: Posted vs Discounted Rate
Free IRD penalty calculator for Canadian mortgages. See the interest rate differential under all four lender methods, side by side, against the…
PayPal Fee Calculator New Zealand: Fees and Net Payout
PayPal fee calculator for New Zealand: fee and net on any sale, plus the price to charge to receive an exact amount. Official PayPal rates, retrieved…
Stripe Fee Calculator New Zealand: Fees and Net Payout
Stripe fee calculator for New Zealand: fee and net on any sale, plus the price to charge to receive an exact amount. Official Stripe rates, retrieved…
International Trade, Postal & Payments Tools · 1 tool
New Zealand GST Registration Threshold Tracker ($60,000)
See rolling 12-month turnover against the NZ$60,000 GST registration threshold, plus your expected next 12 months, using Inland Revenue’s wording.
Why these tools are listed under New Zealand
A tool is placed under New Zealand when its address or title names the place, as with HPI Number Validator New Zealand (CPN, Org, Facility) and IRD Penalty Calculator Canada, or when it sits in a section built for that country. The same tag is written into each page's structured data as the place it covers, so search engines and assistants can tell which rules a result was built for. Generic tools such as unit converters carry no jurisdiction and are not listed. Rates and thresholds change, so check the dated source on each tool before filing, paying or signing anything.