Loan Prepayment Calculator – Calculate Interest and Tenure Savings

A loan prepayment calculator helps you understand how an additional payment towards your outstanding loan can reduce future interest, monthly EMI or remaining loan tenure. Enter your outstanding principal, current interest rate, remaining tenure and proposed prepayment amount. The calculator will compare your existing repayment schedule with the revised schedule after prepayment.

What You Can Calculate

  • Interest saved through prepayment
  • New outstanding principal after prepayment
  • Revised EMI if tenure remains unchanged
  • Revised tenure if EMI remains unchanged
  • Number of EMIs saved
  • Prepayment charges, if applicable
  • Net savings after charges
  • Revised loan closing date

The calculator works for home loans, personal loans, car loans, education loans and loans against property. Results are indicative and may differ from your lender's final repayment schedule.

Outstanding Loan Amount *
in rupees
Current Interest Rate *
% per annum
Remaining Loan Tenure *
years
Prepayment Amount *
in rupees
When Will You Prepay?
Prepayment Charge (if any)
% (check your loan agreement)
For floating-rate loans sanctioned from Jan 1, 2026, RBI prohibits charges for individuals.
What Do You Want to Reduce?

What Is Loan Prepayment?

Loan prepayment means paying an additional amount towards the outstanding principal before it becomes due under the regular repayment schedule. A prepayment may be:

  • Part-prepayment: You repay a portion of the outstanding principal while the loan continues.
  • Full prepayment or foreclosure: You repay the entire outstanding loan and close the account before the scheduled closing date.

When a part-prepayment is made, the lender normally adjusts the repayment schedule in one of two ways:

  • The EMI remains the same, but the loan tenure reduces.
  • The tenure remains the same, but the EMI reduces.

How Does a Loan Prepayment Calculator Work?

Most loans follow the reducing-balance method. Interest for each month is calculated on the principal outstanding at that time. When you make a prepayment, the amount is adjusted against the principal. Future interest is then calculated on a smaller balance. This can reduce the total interest paid over the remaining tenure.

The calculator first estimates your current EMI and remaining interest. It then deducts the prepayment amount from the outstanding principal and generates a revised repayment schedule using the EMI formula:

EMI = P × R × (1 + R)ⁿ ÷ [(1 + R)ⁿ – 1]
Where: P = Outstanding principal | R = Monthly interest rate | N = Remaining number of monthly instalments

When Is Loan Prepayment Most Beneficial?

Prepayment usually has a stronger impact during the earlier years of a loan. At the beginning of a long-tenure loan, a larger portion of each EMI is allocated towards interest. Prepayment can be particularly useful when:

  • You have received an annual bonus or other lump-sum income
  • Your emergency fund is already adequate
  • The loan interest rate is relatively high
  • A large part of the loan tenure is still remaining
  • There is no prepayment penalty
  • You want to become debt-free before retirement
  • Your loan rate is higher than the post-tax return expected from low-risk investments

Should You Reduce EMI or Loan Tenure?

Your Priority Better Option
Maximum interest saving Keep EMI unchanged and reduce tenure
Become debt-free sooner Reduce tenure
Lower monthly financial pressure Reduce EMI
Income has fallen Reduce EMI
Preparing for retirement Reducing tenure may be useful

Note: Reducing tenure usually produces greater savings because the outstanding amount remains unpaid for fewer months. Reducing EMI provides immediate monthly relief but keeps the loan running for the original period.

Loan Prepayment Charges in India

Under the Reserve Bank of India's 2025 Directions, regulated lenders cannot levy prepayment charges on floating-rate loans granted to individuals for non-business purposes when the loan was sanctioned or renewed on or after January 1, 2026. This applies to part-prepayment and full prepayment, irrespective of the source of funds, and without a minimum lock-in period.

For other loans, including certain fixed-rate and business-purpose loans, charges may still apply according to the lender's approved policy. Always check your sanction letter, loan agreement and Key Facts Statement for exact terms.

Frequently Asked Questions

Is part-payment the same as foreclosure?

No. Part-payment reduces a portion of the outstanding principal, while foreclosure involves paying the complete outstanding amount and closing the loan.

How much interest can I save by making a prepayment?

The saving depends on the outstanding principal, interest rate, remaining tenure, timing of the payment and applicable charges. Prepayments made earlier generally produce higher savings.

Can I prepay a home loan without charges?

For floating-rate loans granted to individuals for non-business purposes and sanctioned or renewed from January 1, 2026, RBI directions prohibit regulated lenders from charging prepayment fees. Different rules may apply to other loans. Check with your lender.

Is it better to prepay a home loan or invest the money?

Compare the effective post-tax cost of the loan with the expected post-tax investment return. Also consider risk, liquidity, remaining tenure and whether prepayment charges apply.

Does prepayment affect my credit score?

A properly completed prepayment generally does not negatively affect the credit score. After full foreclosure, verify that the lender reports the account as "closed," not "settled."

Are calculator results exact?

The results are estimates. Actual figures may vary because of EMI dates, daily interest calculations, rate revisions, rounding methods and lender-specific charges.

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