House Affordability Calculator NZ

This calculator works out the house price you could realistically afford in New Zealand, starting from the two numbers that actually matter: your deposit and the mortgage repayment you can comfortably manage each month. Rather than guessing a price and hoping the numbers work, it flips the usual approach around. You enter your deposit, the monthly repayment you are confident you can sustain, the interest rate, and the loan term in years. The calculator reverses the standard mortgage formula to find the largest loan that repayment would service, and adds your deposit on top to give the house price you could reach. It also returns your deposit as a percentage of the price, which lenders use as the loan to value ratio and which affects both approval and the interest rate on offer. Use it before you start house hunting or approach a bank or broker, so you search in a realistic price range rather than falling for a home that stretches your budget too far. It is also handy for testing how a bigger deposit, a longer term, or a change in interest rates shifts what you can afford. Remember that banks assess your full income, debts and living costs, and test affordability at a higher rate than the one on offer today, so treat the result as a starting guide rather than a guaranteed lending figure.

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A guide only. Banks test your loan at a higher rate and assess your full income and outgoings.