Offset Mortgages: Use Your Savings to Cut Interest

Buying a home is a massive first step, but the real game begins when you start looking at how to clear that debt sooner. In New Zealand, an offset mortgage is a clever tool that lets your day-to-day savings directly reduce the amount of interest you pay on your home loan. 

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What is an offset mortgage?

An offset mortgage links your home loan to your everyday transactional or savings accounts.

The concept is pretty straightforward. The money sitting in your linked accounts is ‘offset’ against your mortgage total before the bank calculates your interest. 

This means you only pay interest on the difference – the amount you owe minus whatever is sitting in your savings. The beauty of this setup is that your money stays completely accessible whenever you need it, while constantly ticking away in the background to lower your borrowing costs.

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How do offset mortgages work?

Let's look at a quick example of how the numbers stack up in real life:

• The math: If your home loan balance is $1,000,000 and you have $100,000 sitting across your linked savings accounts, the bank only charges you interest on $900,000. The more cash you keep in those accounts, the less interest you pay.
• The access: That cash is still 100% yours to use for daily expenses, bills or emergency funds. Just keep in mind that if you withdraw money from those accounts, your net loan balance goes up, meaning you will start paying interest on that portion again.
• The trade-off: You won't earn any savings interest on the cash inside your offset accounts. However, because mortgage interest rates are almost always significantly higher than standard savings rates, the money you save on your loan usually far outweighs any interest you would have earned anyway.

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Who should consider an offset mortgage?

An offset structure can be a highly suitable option for homeowners who:

• Have a cash buffer: If you keep a healthy amount of savings aside even after paying your deposit, this setup helps that money work much harder for you.
• Are comfortable with floating rates: Offset facilities are typically attached to a variable interest rate, so they work well if you are happy to navigate market rate movements.
• Want total flexibility: This option gives you the power to lower your interest bills without permanently locking your hard-earned cash away into extra mortgage repayments.

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By using your everyday cash to offset what you owe, you can shave a significant amount of interest off the life of your mortgage.

If you want to see if an offset structure is the right path for your situation, get in touch with our team at Loan Market Central for a chat.