Making an extra payment toward your loan can reduce either the remaining tenure or the monthly EMI. Use the calculator below to see exactly how much interest you can save with a part-payment.
Most people focus only on the monthly EMI when they take a loan. What often gets ignored is the total interest that builds up over the years. One of the simplest ways to cut that interest is by making a part-payment (also called prepayment) whenever you have surplus money.
A part-payment directly reduces your outstanding principal. Because future interest is calculated on this lower principal, you end up paying less interest overall. The Loan Prepayment Calculator on LoanCompareTools.com shows you two clear outcomes of this decision.
Two Ways Lenders Handle Prepayment
When you make an extra payment, lenders usually give you one of these two choices:
- Keep the EMI the same and reduce the tenure
Your monthly outflow stays unchanged, but the loan ends earlier. This option normally saves the maximum interest. - Keep the tenure the same and reduce the EMI
Your monthly commitment becomes smaller, which can ease cash flow. Total interest still reduces, but usually less than the first option.
The calculator lets you switch between both and compare the results instantly.
What Changes After a Part-Payment
Suppose you have an outstanding balance of $80,000 at 9% for 12 years. If you pay $15,000 extra:
- The new principal becomes $65,000.
- If you choose to reduce tenure, the remaining period shortens and total interest drops noticeably.
- If you choose to reduce EMI, the monthly installment falls while the original end date stays roughly the same.
The exact savings depend on how early you make the payment and how much you pay. Payments made in the first half of the loan tenure usually produce bigger interest savings because more of the early EMIs go toward interest.
When Prepayment Makes Sense
- You receive a bonus, tax refund, or any lump-sum amount.
- Your income has increased and you can comfortably pay more than the regular EMI.
- You want to become debt-free faster.
- The interest rate on your loan is relatively high and you do not have a better investment option for that money.
Before paying, check whether your lender charges a prepayment penalty. Some loans (especially fixed-rate personal or auto loans) have restrictions in the initial years, while many floating-rate home loans allow prepayment without extra cost.
How to Read the Results
The calculator displays:
- Interest saved compared with the original schedule
- New EMI or new remaining tenure (depending on the option you select)
- Original total interest versus new total interest
Use these numbers to decide whether the part-payment is worth it for your situation. A large interest saving with only a moderate extra payment is usually a good sign.
Points to Remember
Results are estimates based on the standard reducing-balance formula. Actual savings can differ slightly because of:
- The exact date the lender adjusts your account
- Any prepayment charges
- Changes in floating interest rates later
- How the lender rounds figures
Always confirm the revised schedule with your bank or lender after making the payment.
LoanCompareTools.com provides this calculator only for educational purposes. It does not offer loans or financial advice.
Common Questions
Does prepayment always reduce total interest?
Yes, as long as the extra amount goes toward principal. The earlier you pay, the greater the interest reduction.
Should I reduce EMI or tenure?
Reducing tenure generally saves more interest. Reducing EMI helps if you want lower monthly pressure.
Is there any disadvantage of prepaying?
The main drawback is opportunity cost. If you can earn a higher return elsewhere than the loan interest rate, investing the money might be better. Also watch for prepayment penalties.
Can I make multiple part-payments?
Yes. Most lenders allow more than one prepayment. You can run the calculator again with the new outstanding balance each time.
Will my credit score be affected?
Making a prepayment itself does not hurt your score. Closing the loan early can actually be positive, provided you have no other negative marks.