Loan vs Investment Calculator (2026) – Should You Prepay Loan or Invest?

Confused between paying off your home loan or investing in a SIP? Compare the interest saved via prepayment against the wealth created through compounding to find the mathematically superior option for your money.

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Financial Inputs

Decision Verdict

Investment Wins

Calculating your optimal path...

Comparative Payout Analysis (2026)

Loan Prepayment

₹0
Base EMI: ₹0
New Tenure: 0 Yrs

Investment (SIP)

₹0
Invested: ₹0
Returns: ₹0
Interest Saved Investment Wealth
Loan Benefit
Investment Benefit

💡 Strategic Insight

Analyzing component weights...

Detailed Financial Breakup

Feature Loan Prepayment Investment (SIP)

Mathematical Formulas

Decision = SIP Future Value - Interest Saved from Extra EMI

EMI: P × r × (1+r)ⁿ / ((1+r)ⁿ - 1)

SIP FV: P × [((1 + r)ⁿ - 1) / r] × (1 + r)

Interest Saved: (Total Interest Base Case) - (Total Interest with Surplus Prepayment)

Scenario Comparison (₹10L Loan)

For a ₹10,00,000 loan at 9% for 15 years with a ₹5,000 surplus:
  • Investment Benefit (12%): ₹25,22,869 (Total Wealth)
  • Prepayment Benefit: ₹5,23,556 (Interest Saved)
  • Conclusion: Investing creates more significant long-term alpha.

Loan Prepayment vs Investing: The 2026 Dilemma

The decision to repay a loan early or invest the surplus money is a fundamental question in personal finance. While prepaying a loan provides a guaranteed return (by saving interest), investing in instruments like Mutual Funds offers a higher potential return through market growth. This calculator helps Indian borrowers navigate this dilemma by comparing real numbers.

Typically, if your investment return is significantly higher than your loan's interest rate, investing is mathematically superior. However, factors like tax benefits on home loans and the psychological relief of being debt-free also play a role. You can further analyze your debt with our EMI Calculator or project your SIP growth with the SIP Calculator.

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Frequently Asked Questions

Should I prepay loan or invest?
Compare your loan interest rate with expected investment returns. If returns are higher than the interest by 3% or more, investing is generally better.
Is loan prepayment always better?
No. While it reduces debt, it also has an opportunity cost. If you prepay a 9% loan instead of investing in a 12% fund, you effectively lose 3% annually.
What interest rate makes investing better?
In the Indian context, if your loan rate is below 9% and you are investing in Equity (SIP), investing often yields better long-term results.
EMI vs SIP comparison?
EMI is a liability payment, while SIP is asset creation. Prepaying EMI saves interest while SIP generates compounded returns on your principal.
When to close loan early?
Close the loan if it's a high-interest unsecured loan (Credit Card or Personal Loan) or if you want peace of mind before a major life event.
Does SIP beat loan interest?
Over 10-15 years, SIP returns (typically 12-15%) have historically beaten average home loan rates (8-9%) in India.
Best strategy for home loan?
A combination of partial prepayment and long-term investing often provides the best balance of debt reduction and wealth creation.

Quick Summary

• Prepaying a loan saves a guaranteed amount of interest over the remaining tenure.

• Investing in a SIP uses the power of compounding to build a corpus.

• Mathematical winning depends on the spread between return rate and interest rate.

• Review your overall financial health using our Financial Tools Hub.