An offset account is an everyday transaction account linked to your home loan. The balance reduces the portion of your mortgage that accrues interest, potentially saving you thousands over the life of the loan. But does making repayments more frequently actually help?
There’s a common misconception around offset account home loans that making loan repayments more frequently helps to pay off the balance much sooner. Below, we bust that myth and reveal the real secret to harnessing the power of your offset loan.
Key takeaways
- With a standard mortgage, weekly or fortnightly repayments can reduce total interest.
- With an offset loan, the balance sitting in your linked account matters far more than repayment frequency.
- Every dollar in the offset account reduces the portion of your home loan that attracts interest — calculated daily.
- Focus on maximising your account balance rather than switching to more frequent repayments.
Does paying your home loan weekly or fortnightly save you money?
You may have heard that making repayments more frequently, say weekly instead of monthly, helps pay down a mortgage sooner.
That can be the case with a standard home loan. A common hack is to pay half your monthly repayment each fortnight, or a quarter each week. Because there are 26 fortnights (not 24) in a year, you end up making the equivalent of roughly one extra month’s repayment annually.
It’s a simple strategy, and the hope is that you don’t really notice the extra cash being funnelled toward your home loan.
However, if you have an offset home loan, the frequency of repayments is less important. What really matters is having as much spare cash as possible sitting in the linked account — or accounts.
How does an offset account reduce home loan interest?
An offset account is an everyday transaction account linked to your mortgage. For the purpose of monthly interest calculations, every dollar in the account is deducted from your outstanding loan balance — usually calculated on a daily basis.
Here is how the interest saving works in practice:
- Your lender calculates interest daily. Each day, the bank looks at your loan balance minus the money held in the linked account.
- A higher account balance means lower daily interest. For example, $20,000 sitting in the account against a $500,000 home loan means you only pay interest on $480,000 that day.
- Your regular repayments stay the same. Because the interest portion shrinks, a greater share of each repayment goes toward reducing the principal.
- The cycle compounds over time. As the principal falls faster, each subsequent interest charge is smaller — accelerating your path to mortgage freedom.
Weekly repayments vs. maximising your offset account — which saves more?
The table below compares the two strategies side by side so you can see why an offset loan works differently from a standard mortgage.
| Weekly repayments (no offset) | Monthly repayments with offset account | |
|---|---|---|
| How interest is reduced | Extra repayments each year lower the principal gradually | Daily balance in the linked account directly reduces the amount that accrues interest |
| Speed of impact | Benefits accumulate slowly over the life of the loan | Every dollar deposited has an immediate, daily effect |
| Flexibility | Extra funds are locked into the loan unless you have a redraw facility | Cash stays accessible in your everyday account for bills and expenses |
| Best suited for | Borrowers without an offset facility | Borrowers who can keep a healthy balance in their linked account |
How can you make the most of your offset account?
The golden rule is to keep as much money in the linked account as possible. Some home loans even let you attach multiple accounts, giving you extra flexibility to organise your savings while still reducing interest.
Every day that your money is sitting in the account is another day you pay less interest on your mortgage. If you can prioritise building that balance, the frequency of your repayments won’t really matter.
A few practical ways to maximise the benefit:
- Direct your salary into the offset account. Having your income land here first means a higher average daily balance.
- Delay discretionary spending. The longer cash stays in the account, the more interest you save.
- Use a linked debit card for everyday purchases. Spend from the account only when needed, keeping the balance high for as long as possible.
What types of offset loan are available?
Offset home loans can come in different shapes and sizes. Some only allow you to link one account; others let you link several. You may also be able to attach a debit card to your account for everyday spending — a handy way to keep all your cash working harder against your mortgage.
If you’d like help figuring out what offset loan might be a good fit for your situation, the team at Cove Home Loans is here to help. Get in touch today to talk through your options.