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Mortgage Offset Savings Calculator (AU)

Calculate how much interest and time you save with an offset account on your Australian mortgage. See exact savings over the loan term.

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How it works

Your offset account balance reduces the amount your lender charges interest on. A $600,000 loan with $50,000 in offset only accrues interest on $550,000. Every dollar in offset effectively earns your mortgage rate, tax-free.

At Simple, see your instant interest saving. Standard adds loan term and time saved. Detailed compares offset to a savings account after tax. Advanced models interest-only loans and growing offset balance.

Tax-free advantage: If your mortgage rate is 6.2% and your marginal tax rate is 37%, you'd need to earn 9.8% pre-tax in a savings account to match offset. This makes offset one of the most powerful financial tools for homeowners.

This calculator provides estimates only and does not constitute financial advice. Verify results with a qualified professional.