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Loan Prepayment Calculator

See how extra monthly, annual, or one-time payments slash your mortgage tenure and save thousands in interest.

1. Loan Information

$
%

2. Prepayment Strategy

3. Extra Payment Options

$
TOTAL INTEREST SAVINGS
$$113,621
You save 30.0% of the total original interest charges!

Time Saved
6y 6m Earlier
New Payoff Term
18y 6m

Side-by-Side Comparison

MetricWithout PrepaymentWith Prepayment
Monthly EMI$$2,429 $$2,429
Total Duration300 Months (25y) 222 Months (18y 6m)
Total Interest Charged$$378,700 $$265,079
Total Amount Repaid$$728,700 $$615,079
Interest Share in Total Repayment Reduced from 52% to 43%
Principal 57%
Interest 43%

Year-by-Year Amortization Schedule

Track how prepayments accelerate principal reduction over the loan lifecycle.

YearStarting BalanceRegular PrincipalExtra PrepaymentInterest PaidTotal PaymentEnding Balance
Year 1$$350,000$$5,651 +$$4,200 $$23,497$$33,348$$340,149
Year 2$$340,149$$6,342 +$$4,200 $$22,806$$33,348$$329,606
Year 3$$329,606$$7,082 +$$4,200 $$22,066$$33,348$$318,324
Year 4$$318,324$$7,874 +$$4,200 $$21,274$$33,348$$306,251
Year 5$$306,251$$8,720 +$$4,200 $$20,428$$33,348$$293,330
Year 6$$293,330$$9,626 +$$4,200 $$19,522$$33,348$$279,503
Year 7$$279,503$$10,597 +$$4,200 $$18,551$$33,348$$264,705
Year 8$$264,705$$11,636 +$$4,200 $$17,512$$33,348$$248,870
Year 9$$248,870$$12,746 +$$4,200 $$16,402$$33,348$$231,923
Year 10$$231,923$$13,936 +$$4,200 $$15,212$$33,348$$213,788
Year 11$$213,788$$15,207 +$$4,200 $$13,941$$33,348$$194,380
Year 12$$194,380$$16,570 +$$4,200 $$12,578$$33,348$$173,610
Year 13$$173,610$$18,027 +$$4,200 $$11,121$$33,348$$151,383
Year 14$$151,383$$19,585 +$$4,200 $$9,563$$33,348$$127,597
Year 15$$127,597$$21,255 +$$4,200 $$7,893$$33,348$$102,142
Year 16$$102,142$$23,040 +$$4,200 $$6,108$$33,348$$74,901
Year 17$$74,901$$24,952 +$$4,200 $$4,196$$33,348$$45,749
Year 18$$45,749$$26,996 +$$4,200 $$2,152$$33,348$$14,551
Year 19$$14,551$$12,802 +$$1,750 $$263$$14,815$$0

Evaluating a new Home Loan?

Use our standard Home Loan EMI Calculator to compute monthly installments and bank qualification schedules.

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How Loan Prepayment Works (The Power of Early Principal Reduction)

In standard amortized loans (such as home mortgages, car loans, and personal loans), the bank front-loads interest payments. During the initial 5 to 10 years of a 25-year mortgage, more than 60% of each monthly installment is consumed purely by interest charges, while only a small fraction reduces your actual loan principal.

When you make a prepayment (or extra payment), 100% of that extra capital goes straight towards reducing the remaining principal balance. Because subsequent monthly interest is computed strictly on the reduced balance, each dollar or rupee prepaid delivers an immediate compounding dividend:

Guaranteed Tax-Free Return

Prepaying a 7% interest mortgage yields a guaranteed, risk-free 7% return after tax, which beats most conservative fixed income instruments.

Massive Tenure Reduction

Paying just an extra 10% on top of your monthly installment can chop 4 to 6 years off a 25-year mortgage lifecycle.

Total Debt Freedom

Eliminate monthly mortgage obligations early, freeing up cash flow for retirement savings, education funds, and investments.

Reduce Loan Tenure vs. Reduce Monthly EMI: Which Strategy Wins?

StrategyHow It WorksBest Suited ForInterest Savings
Reduce Tenure (Recommended)Keep paying the original EMI. The extra principal paid reduces the remaining payoff months.Borrowers with steady income who want to become debt-free as quickly as possible.Highest Possible Savings (Up to 40-50% interest saved)
Reduce EMIKeep the original loan maturity date. The bank recalculates a lower monthly payment for the remaining months.Borrowers experiencing cash-flow constraints who need to lower their monthly expenses immediately.Moderate Savings (Interest is still accrued across the full term)

Frequently Asked Questions (FAQ)

In many jurisdictions (such as the US for conforming Fannie Mae/Freddie Mac mortgages, the UK, Canada, and India under RBI guidelines for floating-rate home loans), lenders are prohibited by law from charging prepayment penalties on floating-rate residential mortgages. However, fixed-rate loans or commercial facilities may have breakage costs or prepayment locks. Always verify your loan agreement's prepayment terms before submitting large lump sums.