New Zealand Mortgage Calculators
Free calculators for the New Zealand market — repayments, KiwiSaver first-home, refix, bright-line tax, LVR limits and investment property tools. All figures in NZD.
Core Calculators
Weekly, fortnightly or monthly repayments with full amortisation in NZD.
Repayment schedule for table, reducing or revolving credit mortgages.
Required deposit by LVR speed limits for owner-occupied and investment buyers.
Servicing test at 2–3% above contract rate per RBNZ guidance.
High-LVR lending caps for banks under current RBNZ macroprudential rules.
First-Home & KiwiSaver Calculators
Combined deposit, KiwiSaver withdrawal and First Home Grant for new buyers.
Project KiwiSaver balance and first-home withdrawal eligibility.
KiwiBuild price caps, eligibility and ballot deposit estimates.
Kāinga Ora 5% deposit First Home Loan eligibility and cost estimate.
Investment & Tax Calculators
Cash flow, gearing and yield analysis for NZ rental properties.
Tax payable on residential property sold inside the bright-line period.
Annual local council rates by territorial authority and property value.
Council rates compared across NZ territorial authorities.
Refix & Variable Calculators
Compare new fixed-rate options when your current term rolls off.
Cost of pausing repayments and the impact on total interest paid.
Compare floating rate against 6-month, 1, 2, 3 and 5-year fixed terms.
IO repayments and switch-back-to-P&I shock for NZ borrowers.
Estimated break cost for ending a fixed-rate mortgage early.
Borrowing capacity for a top-up against existing equity.
Specialty Calculators
Lending policy and minimum deposits for NZ apartments by floor area.
Annual body corporate levy estimate for unit-titled properties.
Compliance cost estimate for landlord Healthy Homes Standards.
Builder, meth and LIM report cost estimates by region.
Settlement day funds including legal, LIM and rates apportionment.
Progressive draw-down loan estimates for build projects.
Cost of bridging between buy and sell settlements in NZ.
Affordable rent and rent-to-income ratio for NZ tenants.
About New Zealand Mortgages
The New Zealand mortgage market is built around short fixed-rate terms — 6 months, 1 year and 2 years are the most popular — with a smaller share of borrowers on a floating rate. Most home loans use a table (amortising) repayment structure with 25 or 30-year terms, and refixing every 1–2 years is the norm. The Reserve Bank of New Zealand (RBNZ) controls monetary policy via the Official Cash Rate, which feeds through to floating rates and influences the wholesale rates that drive fixed pricing.
The RBNZ also administers macroprudential tools that directly shape who can borrow. Loan-to-Value Ratio (LVR) speed limits cap the share of high-LVR lending banks can do — investors typically need at least a 35% deposit and owner-occupiers usually need at least 20%, with a small allowance for high-LVR lending. Debt-to-Income (DTI) restrictions add a ceiling of around 6× income for owner-occupiers and 7× for investors at most banks.
First home buyers can withdraw their KiwiSaver balance, apply for a Kāinga Ora First Home Loan with a 5% deposit, and (where eligible) buy a KiwiBuild home under price caps. Investors should be aware of the bright-line test, which taxes capital gains on residential property sold within the bright-line period — currently 2 years for most properties under the 2024 changes.
Key Regulators & Programs
- Reserve Bank of New Zealand (RBNZ) — sets the OCR and LVR/DTI macroprudential limits
- Financial Markets Authority (FMA) — conduct regulator for financial services and advisers
- Commerce Commission (ComCom) — enforces the Credit Contracts and Consumer Finance Act (CCCFA)
- Kāinga Ora — Homes and Communities — administers First Home Loan, First Home Grant and KiwiBuild
- Inland Revenue (IRD) — administers the bright-line test and rental property tax rules
- Tenancy Services / MBIE — Healthy Homes Standards and tenancy law