EMI Calculations and Checklists
Part-prepaying a personal loan: reduce the EMI or the tenure? Worked example
What happens when you prepay part of a personal loan in India, how much interest each option saves, how prepayment charges change the result and the steps to do it.
When you part-prepay a personal loan, the lump sum reduces your principal, and the lender then either lowers your EMI for the same remaining tenure or keeps the EMI and shortens the tenure. Keeping the EMI and cutting the tenure saves more interest. In the illustrative example below, prepaying ₹1 lakh after a year on a ₹5 lakh, 12%, 5-year loan saves about ₹26,400 of interest if the EMI is reduced, but about ₹51,300 if the tenure is reduced. Before prepaying, check the charge: there is none on floating-rate loans to individuals for non-business purposes, while fixed-rate loans may carry a part-prepayment charge as per the Key Fact Statement.
This guide belongs to the personal loan EMI calculation guide.
The worked example
An illustrative loan: ₹5,00,000 at 12% for 5 years (60 EMIs), EMI about ₹11,122.
After 12 EMIs the outstanding principal is about ₹4,22,355. You prepay ₹1,00,000, leaving ₹3,22,355.
| Option | EMI from now | EMIs left | Interest from now | Interest saved |
|---|---|---|---|---|
| No prepayment | ₹11,122 | 48 | about ₹1,11,500 | – |
| Reduce EMI, keep tenure | about ₹8,489 | 48 | about ₹85,100 | about ₹26,400 |
| Keep EMI, reduce tenure | ₹11,122 | about 35 | about ₹60,200 | about ₹51,300 |
Reducing the tenure saves almost twice as much because the higher EMI keeps cutting the principal faster. Reducing the EMI frees about ₹2,633 a month, which can be useful if your budget is tight.
Try the reduced-EMI option in the EMI calculator: enter ₹3,22,355, 12% and 4 years.
How prepayment charges change the result
If the loan in the example is fixed-rate with an illustrative part-prepayment charge of 4% of the amount prepaid plus 18% GST:
- Charge = ₹1,00,000 × 4% = ₹4,000, GST ₹720, total ₹4,720.
- Net saving with reduced tenure ≈ ₹51,300 − ₹4,720 ≈ ₹46,600.
- Net saving with reduced EMI ≈ ₹26,400 − ₹4,720 ≈ ₹21,700.
Prepaying still pays here because it is early in the loan. Late in the tenure, when little interest remains, a percentage charge can exceed the saving; see the examples in foreclosure and prepayment charges.
Which option to choose
| Your situation | Usually better |
|---|---|
| Budget is comfortable and you want to minimise interest | Reduce tenure |
| EMI is a strain or income has fallen | Reduce EMI |
| You plan to apply for a home loan soon | Reduce EMI (a lower EMI improves your FOIR) or close the loan entirely |
| You expect more lump sums later | Reduce tenure now; repeat prepayments |
| Loan has a high prepayment charge | Calculate first; consider waiting until the charge-free window if your agreement has one |
Some lenders apply only one option by default. Tell the lender in writing which one you want, and ask for a revised repayment schedule.
Steps to part-prepay
- Check your agreement and KFS for prepayment terms: charge, minimum amount, how many times a year, and any lock-in. If the loan is floating-rate and you are an individual borrowing for a personal purpose, there should be no charge and no lock-in.
- Ask the lender for the procedure. Many allow prepayment in the app or net banking; others need a branch request.
- Pay from your own bank account through the lender's official channel. Never pay an individual or agent.
- State your choice: reduce EMI or reduce tenure.
- Get a revised repayment schedule and confirmation of the new outstanding principal.
- Check the next EMI debit matches the new schedule, and that your NACH mandate amount has been updated if the EMI fell.
Where the lump sum should come from
Prepaying makes sense only if you keep enough cash for emergencies. Using your entire emergency fund to prepay a 12% loan can backfire if you then need to borrow again at a higher rate. A rough order of priority for spare money:
- An emergency fund of a few months' essential expenses.
- The most expensive debt first: revolving credit card balances, then app or high-rate personal loans, then cheaper loans.
- Then long-term savings and investments.
If you hold several loans, compare their rates and charges and prepay the costliest. The balance transfer guide covers moving a high-rate loan to a cheaper lender instead.
Mistakes to avoid
- Not specifying the option. You may end up with a reduced EMI when you wanted a shorter loan.
- Prepaying just before a rate reset on a floating loan without checking the new schedule.
- Forgetting the NACH mandate after foreclosure or a big EMI cut.
- Prepaying a cheap loan while carrying expensive card debt.
Frequently asked questions
Is there a minimum amount for part-prepayment?
Many lenders set a minimum, such as a multiple of the EMI, in their terms. Check your agreement.
Does part-prepayment reduce the interest rate?
No. It reduces the principal on which interest is charged. The rate stays the same.
Can a lender refuse a part-prepayment?
On a fixed-rate loan, the agreement may restrict when and how often you can prepay. Where RBI's bar on charges applies, no lock-in may be imposed.
Does part-prepayment show on my credit report?
The report will show a lower outstanding balance after the next update. It does not record prepayment as negative.
Sources
- Reserve Bank of India — RBI (Pre-payment Charges on Loans) Directions, 2025 and reset rules for EMI-based personal loans
- RBI Complaint Management System — complaints about wrongly charged prepayment fees
- TransUnion CIBIL — checking that the outstanding balance is updated
