Home Loan Offset Calculator – See How Much Interest You Can Save
An offset account is one of the most powerful tools to reduce your mortgage interest and pay off your loan sooner — without changing your lifestyle.
Our Home Loan Offset Calculator shows you how much interest you could save and how many years you could cut from your loan by using an offset account.
How to Use the Home Loan Offset Calculator
1. Enter Your Loan Details
- Loan amount (e.g. $600,000)
- Interest rate (e.g. 6.00%)
- Loan term (e.g. 30 years)
2. Choose Repayment Frequency
- Weekly, fortnightly, or monthly.
3. Input Your Offset Balance
- Enter the average amount you expect to keep in your offset account.
- Example: $25,000 in savings or salary that stays in the account.
6. Click ‘Calculate’
- Instantly see how much interest you’ll save and how many years you could shave off your home loan.
When Should You Use This Calculator?
- If you’re applying for a home loan and considering an offset feature
- If you have a lump sum or regular savings
- If you want to compare offset vs extra repayments
Try the Calculator Now
Use our Home Loan Offset Calculator to understand how your savings can work harder and help you become mortgage-free faster — without locking your money away.
What Is an Offset Account?
A 100% offset account is a transaction account linked to your home loan. The money in this account reduces the amount of your loan that’s charged interest. So, instead of earning interest on your savings, you save on mortgage interest – which is often more valuable.
Benefits of Using an Offset Account
- Pay less interest on your mortgage
- Reduce your loan term without increasing repayments
- Keep access to your money — unlike making extra repayments, your funds stay available
- Great for salaried workers, business owners, and anyone with regular savings or cash flow
Example:
- Loan amount: $600,000
- Offset balance: $40,000
- Loan term: 30 years
- You could save over $70,000 in interest and cut 3–5 years off your loan — just by keeping your savings in an offset account.