Mortgage calculators
If you're looking to find out how much you can borrow or what your mortgage repayments might be, you've come to the right place.
Banks will often let you borrow more money than you can actually afford. Our home loan experts will help to give you an idea of how much you can afford to borrow.
And if you're looking to work out what your repayment amounts might be, check out our mortgage repayments calculator - it's easy to see how your repayments change based on loan size, rate or loan term.
Already have a mortgage? Our refinance calculator can help see how switching to another bank could save you a ton of interest, plus some extra cashback.
How much can I borrow for a house?
Tell us a little about your financial situation and we'll work out how much you could borrow towards purchasing a home.
*This calculator is intended as a guide for illustrative purposes only and is not intended to provide financial advice. The results are based on the information you enter and assume that interest rates and loan terms remain constant for the duration of the loan. It does not account for fees, fluctuating interest rates, or changes to your financial situation over time. Please note that actual borrowing amount may differ and interest rates are subject to change. To talk to one of our team at Squirrel, contact us here. We recommend seeking financial advice about your situation and goals before making any financial decisions.
Work out your mortgage repayments
Want to know how your home loan repayments change if you adjust the loan amount, the interest rate or the loan term? Just pop your details into our quick mortgage repayment calculator below.
It'll show you your repayment amounts, how much total interest you'll pay over the life of the loan, and the difference between monthly or fortnightly repayments.
What will my mortgage repayments be?
Work out your regular repayments and how quickly you could pay off your home loan.
*This calculator is intended as a guide for illustrative purposes only and is not intended to provide financial advice. The results are based on the information you enter and assume that interest rates and loan terms remain constant for the duration of the loan. It does not account for fees, fluctuating interest rates, or changes to your financial situation over time. Please note that actual repayment amounts may differ and interest rates are subject to change. To talk to one of our team at Squirrel, contact us here. We recommend seeking financial advice about your situation and goals before making any financial decisions.
Could you save by refinancing your mortgage?
Reviewing your mortgage - or switching to another bank - could save you thousands in interest, plus you may even unlock cashback.
Use our refinance calculator below to see how changing your interest rate or loan structure could affect your repayments and the total interest you pay over time. And if the numbers look good, it's worth chatting to one of our advisers to see what options might be available to you.
How much could I save by refinancing?
Pop in a few details about your current mortgage and we'll estimate how much you could save by refinancing.
Why choose Squirrel for your mortgage?
Our advisers aren't incentivised
They get paid the same no matter which lender you end up with, so the only motivation is to make you better off.
Better mortgage rates
We write about $3 billion of home loans per year which gives us negotiating power and access to better rates.
Better technology
Our online application takes less than 10 minutes, and will help us focus on what's most important to you.
More banks, more choices
Our First Home Buyers Guide has everything you need to know
If you're planning on getting your foot in the door of the property market, everything you need to know about deposits, house prices and navigating the process is in our free digital guide.
Wondering about your deposit?
Basically, banks won't lend the full house price amount - you need to be able to put down a deposit, and the more the better. You may be familiar with 20% as the magic number, but the reality is if you're in a strong financial position we can work with as little as 5% deposit.
Calculating your borrowing power
A mortgage calculator is a good place to start when starting to think about how much you can borrow. But there are lots of factors that come into play, and every situation is different. Here are a few things to consider.
Get schooled up so you can make smarter decisions.
The more you understand about borrowing for a house, the more likely you will be to make more informed decisions that work for you. We've written a few articles that we think you'll find helpful.
Wellington property market update - June 2026
Good news for anyone looking to get on the property ladder in our nation's Capital—it's very much a buyers' market out there in Wellington at the moment, and looks set to stay that way for a while yet. Here's the latest on house prices, interest rates, and the broader economy from our resident Wellington mortgage expert, Nick Virtue.
Christchurch property market update - June 2026
Global uncertainty has slowed some of the positive momentum Christchurch was seeing at the start of the year—but there's still plenty happening across the Canterbury housing market, it just means buyers are able to take their time. Here's the latest from our resident Christchurch mortgage expert, Nathan Miglani.
NZ property market update - June 2026
It feels like we're in stasis at the moment—things aren't necessarily going backwards, but they're not getting better in a hurry either. But there are some silver linings out there, especially for first home buyers. Here's the latest on interest rates, the New Zealand housing market and economy.
After a bit more information?
Talk to one of our mortgage experts about your home loan needs today. You can contact us via our website or just give us a call, 7 days a week and we'll be happy to chat. No pressure.
Don’t just take our word for it
Kelly
New Zealand
Jess was amazing from start to finish, took the entire stress out of buying our first home. Her knowledge was incredible and we feel she always went the extra mile for us
Mark
New Zealand
Matt was extremely professional, efficient and most of patient. Great follow up, simple explanations for any queries we had (and we had a few) and anything that required follow up with the bank was swiftly actioned. Really did make the process easy and a great outcome overall.
Anonymous
New Zealand
Very happy with the clear and transparent advice provided by Mayank. He was prompt and very helpful!
Ashley
New Zealand
Bianca went above and beyond to ensure that we got the best outcome for our loan. We would not hesitate in using Squirrel for any future business we required.