Offset mortgages are popular in the UK and Australia but they’re still relatively unknown here — Kiwibank, BNZ and Westpac are the only banks to offer them. Are they worth considering as an alternative to revolving credit mortgages?
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An offset mortgage uses your savings to help cut down the interest you pay and the length of time your mortgage runs for. Your savings and your credit accounts are linked — and instead of earning interest, your savings are subtracted from your mortgage.
For example, if you have a mortgage of $200,000 and $5,000 in savings, you’ll only pay interest on $195,000 of your mortgage. At an offset-mortgage rate of 5.90% on a 30-year mortgage, this could save you over $8,000 in interest and reduce your loan term by about 18 months.
Kiwibank’s “Offset Mortgage”, BNZ’s “Total Money Home Loan” and Westpac’s “Choices Offset Mortgage” allow you and your family to link several accounts (up to 50 at BNZ, 10 at Westpac and 8 at Kiwibank) so you can pool your savings to cut down your home loan debt. On the downside, you may have to pay set-up fees plus a loan establishment fee (up to $400 for BNZ and Westpac, and $250 for Kiwibank). BNZ and Westpac charge a $10 monthly maintenance fee; Kiwibank does not charge a fee for this.
Offset mortgages are similar to revolving credit (also known as line-of-credit) mortgages. Revolving credit is like a large overdraft secured against your house. The loan is linked to your cheque account. Any money deposited into your cheque account — such as your salary or income — reduces both your loan amount and the interest you pay. Like offset mortgages, they’re only available at a floating rate.
Offset mortgages can work well for people who want to help their children buy a house or who have a large chunk of savings and are happy to forego the interest on it. A family group can also work together to pay off a mortgage through linked accounts.
Revolving credit mortgages may work better for people with irregular income or spending as there are no fixed repayments. Lump–sum repayments can be made whenever you like, for as much as you like.
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