{"name":"Calculate.co.nz API","version":"1.15.1","documentation":"https://api.calculate.co.nz/docs","openapi":"https://api.calculate.co.nz/openapi.json","website":"https://www.calculate.co.nz/","mcp_endpoint":"https://mcp.calculate.co.nz/mcp","contact":"contact@calculate.co.nz","authentication":"none","tax_year":"2026/27","endpoints":{"service":{"GET /":"Index of every endpoint","GET /health":"Liveness check","GET /v1/index-status":"State of the search index"},"discovery":{"POST /v1/find-calculator":"Find the right calculator, guide or dataset"},"calculators":{"POST /v1/paye":"NZ take-home pay after PAYE","POST /v1/gst":"Add or remove NZ GST","POST /v1/bmi":"Body mass index and healthy weight range","POST /v1/mortgage":"Mortgage repayments and lifetime totals","POST /v1/annual-leave":"Annual leave balance projected forward","POST /v1/fuel-cost":"Fuel cost of a trip and of regular driving","POST /v1/tax-refund":"NZ income tax refund or bill for a year","POST /v1/gpa":"Grade point average on the NZ nine point scale","POST /v1/hourly-to-salary":"What an hourly rate is worth as a salary","POST /v1/work-hours":"Total hours from a timesheet, and what they pay","POST /v1/bonus-tax":"Tax on a bonus or commission payment","POST /v1/power-tower":"Power tower (tetration), a^^n","POST /v1/parental-leave":"NZ paid parental leave payment and shortfall","POST /v1/net-to-gross":"The gross salary needed to take home a given amount","POST /v1/final-pay":"What is owed on leaving a job, gross","POST /v1/secondary-tax":"Secondary tax code for a second income, and the year-end position","POST /v1/pro-rata-salary":"A full-time salary scaled to part-time hours","POST /v1/lump-sum-tax":"PAYE on a redundancy or lump sum, by IRD's rate table","POST /v1/working-for-families":"Working for Families entitlement after abatement","POST /v1/road-user-charges":"Road user charges for an EV, diesel or plug-in hybrid","POST /v1/electricity-cost":"Household electricity cost by region and appliance","POST /v1/ncea-rank-score":"University Entrance rank score, and an indicative GPA","POST /v1/vehicle-loan":"Vehicle loan repayments and what the interest costs","POST /v1/energy-expenditure":"BMR, TDEE, a calorie target and the macros to hit it","POST /v1/kiwisaver":"KiwiSaver balance projected to retirement","POST /v1/fbt":"Fringe benefit tax on a vehicle, a low-interest loan or another benefit","POST /v1/redundancy-entitlement":"What is owed on redundancy in New Zealand, mandatory and contractual","POST /v1/grocery-budget":"A weekly grocery budget for a named New Zealand household","POST /v1/contractor-vs-employee":"Contracting against salaried employment, on what you actually keep","POST /v1/benefit-entitlement":"Weekly main benefit, abatement and Accommodation Supplement","POST /v1/schedular-payments":"Withholding tax on a schedular payment to a contractor","POST /v1/acc-weekly-compensation":"ACC weekly compensation, with the floor and the ceiling both shown","POST /v1/sick-leave":"Sick leave entitlement and balance under the Holidays Act","POST /v1/tax-code":"The right New Zealand tax code, and why","POST /v1/paye-due-dates":"When an employer must pay PAYE and file the pay run","POST /v1/depreciation":"Straight line or diminishing value depreciation, year by year"},"reference data":{"GET /v1/rates":"Current New Zealand statutory rates, dated and sourced","GET /v1/rates/{rate_id}":"One rate by id"}},"note":"36 calculators have their own endpoint. The rest of the 2,377 on the site are reachable through /v1/find-calculator as URLs on calculate.co.nz."}