027 336 3000What will your mortgage actually cost?
Get an instant estimate of your repayments and total interest paid. The numbers update as you adjust the loan amount, interest rate, term, and repayment frequency.
Your loan details
Your indicative repayment
Important — please read
This calculator gives an indicative estimate only, based on the figures you enter. It is a general illustration and does not constitute personalised financial advice or a loan offer.
Actual repayments will depend on the lender, loan structure, fees, your individual circumstances, and the rates available at the time of application. For advice tailored to your situation, please get in touch.
A few things worth knowing
Calculator results are useful for getting a sense of the numbers — but real lender offers always involve more variables than any calculator can capture. Here’s what’s behind the maths and where you’d want to talk to me directly.
Why is the “total interest paid” so much?
Mortgages are long. Even at a moderate interest rate, paying back $700,000 over 30 years means a lot of interest — often more than the original loan amount itself. This is why even small reductions in the rate, or paying off the loan faster, can save tens or hundreds of thousands.
The most useful thing this number does is show why structure and rate matter so much over the life of a loan. Worth a conversation if it surprises you.
What’s NOT included in this calculation?
The calculator gives you the principal-and-interest repayment only. It doesn’t include:
• Lender establishment or admin fees
• Property valuation costs
• Legal fees (solicitor)
• Insurance (home and contents, life, income protection)
• Council rates and body corporate fees
• Low Equity Margin (if your deposit is under 20%)
These are part of the real cost of owning a home and we’d factor them in when we run actual numbers for your situation.
Are these numbers what I’ll actually be offered?
No — this is an illustration. Real lender offers depend on your income, deposit, employment situation, credit history, the property itself, and the lender’s current appetite. Two people running the same numbers through this calculator could get very different real-world offers.
That’s exactly what I do — work out which lender will give you the best actual offer based on your specific situation, not the textbook one.
What interest rate should I put in?
If you want a rough sense of where the market is, current advertised rates for owner-occupied home loans in NZ are generally in the 6%–7% range, depending on the lender, the term, and your loan-to-value ratio. Investor rates are usually slightly higher.
For a meaningful calculation, use a rate close to what you’d realistically expect to be offered. We can help you with that — every lender is in a slightly different place at any given time.
What about a fixed/floating split?
Most home loans in NZ are split between a fixed-rate portion (locked in for 1-5 years) and a floating-rate portion (variable, can change anytime). The right split depends on your circumstances — how much certainty you want, whether you might have lump sums to repay, and where you think rates are heading.
This calculator uses a single blended rate to keep things simple. If you’d like to model a specific split for your situation, that’s exactly the kind of conversation worth having.
Numbers look about right? Let’s talk specifics.
The calculator gives you a rough shape. A 30-minute conversation gives you an actual answer based on your real situation, the right lender, and the best structure.
Talk to JJ Or call 027 336 3000