Lump Sum Repayment Calculator – See How One-Off Payments Can Save You Thousands
Made a bonus? Received an inheritance? Sold an asset?
A lump sum repayment can significantly reduce the interest payable on your loan and help you become debt-free sooner.
Our Lump Sum Repayment Calculator shows you how a one-off extra repayment impacts your home loan, investment loan, or commercial loan and how much time and interest you can save.
How to Use the Lump Sum Repayment Calculator
1. Enter the Loan Details
- Loan amount: Total borrowed (e.g. $600,000)
- Interest rate: Current rate (e.g. 6.25%)
- Loan term: Original loan length (e.g. 30 years)
- Repayment frequency: Weekly, fortnightly, or monthly
2. Enter the Lump Sum Amount
- This is the one-off payment you’re planning to make (e.g. $20,000)
3. Select When You’ll Make the Payment
- Choose how far into the loan term you’ll make the lump sum (e.g. after 3 years)
4. Click ‘Calculate’
- Instantly see how much interest you’ll save and how many years you’ll shave off your loan.
Why Use a Lump Sum Repayment?
- Reduce total interest payable
- Cut down your loan term
- Increase equity in your property
- Flexible – you can keep your repayment amount or adjust it after the lump sum
Try the Calculator Now
Use the Lump Sum Repayment Calculator to make smarter financial decisions and see how even one payment can make a massive difference over the life of your loan.
Use for Home Loans
See how a tax refund, work bonus, or cash windfall can help you pay off your mortgage faster.
Use for Investment Loans
Understand how injecting a lump sum into your loan can increase equity and reduce long-term interest costs.
Example:
- Loan: $600,000
- Interest rate: 6.25%
- Term: 30 years
- Lump sum: $30,000 after 5 years
- Save over $60,000 in interest and repay your loan up to 3 years earlier