Loan Calculator

Estimate only. NZ residential rental interest is fully deductible from the 2025–26 tax year onward (lower for earlier years). Rental losses are "ring-fenced" — they carry forward against future rental income and can't offset other income, unless a property is exempt (e.g. a new build). Confirm your position at ird.govt.nz.

Unlike PAYE, rental tax isn't withheld automatically — it's settled later via provisional and/or terminal tax when you file your IR3. For a fully itemized Budget with nothing netted away, link each piece separately from a row's link menu: the property's gross rent into an income row, then its operating costs, interest, and tax provision each into their own expense rows. Rates, insurance, etc. only show up under "operating costs" — they aren't hidden inside the income figure. If the property's loan is already counted through "All Active Loans" on a Mortgage-type expense row, don't also link "Rental Interest" for the same loan, or you'll count that interest twice. A property's net profit/loss (gross minus everything) also feeds the Family Income shown on the WFF tab, live, whenever "Include Rental" is checked there.

Estimate only, based on published Ministry of Education home education supervisory allowance rates. Paid in 2 instalments a year (usually around June and November) to a parent holding a Certificate of Exemption for each child. Mark which children are homeschooled with the toggle in the Children table above — it shares the same children as the WFF tab, so names and birthdays stay in sync. Confirm current rates and eligibility at education.govt.nz.

Estimate only, based on published IRD 2026/27 rates. Does not calculate the Minimum Family Tax Credit. Confirm your exact entitlement at ird.govt.nz.

Estimate only — PAYE tax and ACC earner levy calculated using published IRD 2026/27 rates. Does not include student loan repayments or the Independent Earner Tax Credit. Confirm at ird.govt.nz.