Home Loan Prepayment vs SIP Calculator – Should You Prepay or Invest?
Compare two strategies for your extra cash: prepaying your home loan to save interest and become debt-free faster, or investing via SIP to potentially build a larger corpus. See month-by-month projections, net worth comparison, and find the break-even point.
Important: Understand the Risk Difference
- ✓ Home Loan Prepayment: Guaranteed savings equal to your loan interest rate (e.g., 8.5% = 8.5% guaranteed return). Interest saved is certain and tax-free.
- ⚠ SIP Investment: Returns are market-linked and NOT guaranteed. Historical returns (10-12%) may not repeat. You could earn more OR less than shown.
- Key Insight: Prepayment gives you a risk-free return. SIP returns depend on market performance and your investment horizon.
Loan Details
= Fifty Lakh Rupees
Monthly EMI
₹43,391
Prepayment Strategy
= Ten Thousand Rupees
Extra amount added to EMI every month
Equivalent monthly investment for SIP: ₹10,000
This amount will be used for SIP comparison
SIP Investment Settings
Conservative: 10%, Moderate: 12%, Aggressive: 14%
The Winner (at end of loan tenure)
📈 SIP Investment
Advantage
₹1.00 Cr
Break-even: SIP catches up at month 2 (Year 1)
Prepayment Path
Interest Saved
₹21.79 L
Time Saved
7 years 2 months
Loan Closed In
12 years 11 months
Total Paid (EMI + Prepayment)
₹82.35 L
SIP Investment Path
Final Corpus
₹1.00 Cr
Total Invested
₹24.10 L
Gains
₹75.91 L
LTCG Tax
- ₹9.33 L
Post-Tax Corpus
₹90.68 L
Net Worth Comparison
Net worth = Assets (SIP corpus) - Liabilities (Loan balance). Prepayment path shows faster debt reduction; SIP path shows corpus growth alongside loan repayment.
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How This Calculator Works
This calculator simulates two parallel scenarios month-by-month:
- Prepayment Path: Your extra cash reduces the loan principal, saving interest and shortening tenure. Net worth = 0 (no loan) once paid off.
- SIP Path: Your extra cash is invested monthly. You pay the standard EMI, and your corpus grows. Net worth = SIP Corpus - Remaining Loan.
The winner is determined by comparing net worth at the end of the original loan tenure.
Important Considerations
- Risk: Loan prepayment gives guaranteed returns equal to your interest rate. SIP returns are market-linked and not guaranteed.
- Liquidity: SIP investments can be redeemed (with tax implications). Money used for prepayment is locked in the property.
- Tax: This calculator includes LTCG tax on SIP gains. Prepayment savings are tax-free.
- Psychological: Being debt-free has value beyond numbers. Consider your peace of mind.
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Frequently Asked Questions
Should I prepay my home loan or invest in SIP?
It depends on your loan interest rate vs expected SIP returns. If your loan rate is higher than expected post-tax SIP returns, prepaying saves more. If SIP returns exceed loan rate after taxes, investing may build more wealth. This calculator shows the exact comparison for your scenario.
How does LTCG tax affect SIP returns vs loan prepayment?
Long-term capital gains (LTCG) on equity mutual funds are taxed at 12.5% above ₹1.25 lakh exemption. This reduces your effective SIP returns. Loan prepayment savings are tax-free, making the comparison closer than raw returns suggest.
What is the break-even point in prepayment vs SIP?
The break-even point is when your SIP corpus minus remaining loan equals the wealth you would have if you had prepaid. Before this point, prepayment is ahead; after, SIP is ahead. This calculator shows the exact month.
Is loan prepayment a guaranteed return?
Yes, prepaying a loan gives you a guaranteed return equal to your loan interest rate. For an 8.5% loan, every rupee prepaid effectively earns 8.5% risk-free. SIP returns are market-linked and not guaranteed.
Should I combine prepayment and SIP?
A balanced approach often works best: prepay enough to stay comfortable with your debt, and invest the rest for long-term growth. This calculator helps you understand the trade-offs to find your optimal split.
How does inflation affect this decision?
Inflation erodes the real value of money. Your loan EMI stays fixed, so it becomes relatively easier to pay over time. SIP returns, when adjusted for inflation, give you real purchasing power. This calculator shows inflation-adjusted values.
Disclaimer: This calculator provides estimates for educational purposes only. Actual returns on investments can vary significantly. Loan terms and prepayment options depend on your lender's policies. Tax laws may change. Consult a financial advisor before making major financial decisions.
Bank-Specific Prepayment Rules
Before finalizing a strategy, verify your lender's fixed-rate penalty, annual part-payment limits, and closure workflow.