Calculators

Borrowing

Mortgage calculators Borrowing

How much could I borrow?

Your borrowing is set by what your income can service at a bank’s test rate, and capped by the debt-to-income rules.

01About you

Who’s applying?
Buying to

02Your outgoings

03The loan

This calculator gives an indication only, based on the information you enter. It isn’t an offer of finance or financial advice. Lenders apply their own criteria, rates change, and fees may apply. Talk to a Diamond Financials adviser for advice on your situation.

How we work it out

The fine print, in plain English

Take-home pay
Worked out from your gross income using NZ tax rates and the ACC earners’ levy. KiwiSaver and student loan deductions aren’t taken off.
Test rate
Banks check you could still pay if rates rose, so they assess the loan at a higher rate than you’d actually pay.
Living costs
We use the higher of your figure and a rough benchmark based on household size, as lenders do.
Credit cards
Counted at 3% of the limit each month, whether or not you carry a balance.
Debt-to-income
Reserve Bank rules generally cap lending at 6× gross income for a home and 7× for an investment property.
Deposit
Most lending above 80% LVR (65–70% for investors) is restricted, so your deposit matters as much as your income.

Like what you see? Let’s make it real.

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