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Instant Calculator

See your offset working, before you download a thing

Enter your loan and offset details for an instant estimate of the interest you'd save and the time you'd cut. No sign-up needed to see your result.

What you'd realistically keep parking in there. Leave at 0 if the balance just sits.
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Interest saved
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Time cut off the loan
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Effective tax-free return
Want the full picture? Get the branded Excel model - charts, deposits and year-by-year balances you can keep ->
More tools: extra repayments · refinance savings · home loan health check

This calculator provides estimates only, based on the figures and assumptions you enter (principal-and-interest repayments, your interest rate and monthly offset top-ups held constant, your full offset balance offsetting the loan, and redraw, account fees and any interest your savings might otherwise earn not counted). It is not an offer of credit, a quote, or financial advice, and doesn't account for your full circumstances or all fees and charges. Lending criteria, fees and rates vary by lender and change over time. Talk to us for an assessment based on your situation.

Offset or redraw - what's the difference?+
An offset account is a separate everyday transaction account; its balance is subtracted from your loan balance before interest is worked out, and you can spend from it any time. Redraw is money you have paid ahead on the loan itself - it also saves interest, but pulling it back out can be slower or restricted, and some lenders limit it. Offset usually wins on flexibility; redraw often comes without a package fee. The extra repayments calculator shows the redraw side.
Is an offset account worth the package fee?+
It depends on your balance. An offset often sits inside a package with an annual fee. The rough test: if the interest saved on your typical offset balance is comfortably more than the fee, it pays for itself. On a small balance it may not. Enter your real numbers above to see the saving, then weigh it against the fee your lender quotes.
Can I have more than one offset account?+
Some lenders allow multiple offset accounts against the one loan - handy for keeping savings buckets separate while still offsetting the full total. Others offer just one, or offset only a portion of the balance. It varies a lot by lender, so it is worth checking the specific product before you count on it.
Free Excel Calculator

See what an offset account could save you

A free Excel calculator. Enter your loan and offset balance to see the interest you'd save and how many years sooner you'd be debt-free.

  • See the interest saved with vs without an offset
  • Add regular deposits and watch the savings grow
  • Works for weekly, fortnightly or monthly repayments
  • See how many years sooner you'd pay off the loan
  • Balance chart comparing offset vs no offset
Mocha Finance Offset Account Calculator preview

Get the free Offset Calculator

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How it works

1

Enter your details

Pop in your name, email and mobile - takes about 20 seconds.

2

Get it instantly

We email you the branded Excel calculator straight away, free.

3

Crunch your numbers

Only the input cells are editable - change them and watch the results update.

Built by Michael Gross, an accredited Melbourne mortgage broker (Credit Representative 546597) FBAA Member Credit Representative 546597 Australian Credit Licence 517192
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