Invest vs Prepay Home Loan
Home-Loan Rate vs Investment Return
Learn why an 8% home loan and 12% expected investment return do not create a guaranteed 4% profit after tax, costs and risk.
Last reviewed: 16 July 2026
Direct answer
Can I subtract the home-loan rate from expected investment return?
Only as a rough starting point. Loan interest avoided is comparatively certain, while investment return is variable and affected by tax, costs, time horizon and sequence; the two headline percentages are not equivalent.
Worked example
A 12% gross assumption minus 1% drag is 11%, but the realised path can still underperform an 8.5% prepayment saving over a particular period.
What to check
- Compare like-for-like time periods.
- Use after-tax, after-cost investment assumptions.
- Account for volatility and liquidity value.
How the calculator approaches it
- 1.Calculate remaining EMI interest without a prepayment.
- 2.Apply the lump sum to principal while keeping EMI unchanged.
- 3.Calculate interest saved from the shorter estimated tenure.
- 4.Compound the same lump sum at the after-drag investment return and compare gains.
Important limitation
Prepayment savings are comparatively predictable; investment gains are not. Preserve emergency liquidity and separately account for verified tax benefits and charges.
Primary sources
Related questions
FAQs
Can I subtract the home-loan rate from expected investment return?
Only as a rough starting point. Loan interest avoided is comparatively certain, while investment return is variable and affected by tax, costs, time horizon and sequence; the two headline percentages are not equivalent.
Which calculator should I use for this question?
Use RupeeKit's Invest vs Prepay Home Loan Calculator India and replace the example with your own current figures.
RupeeKit provides educational estimates only. This page is not personalised financial, investment, tax, legal or lending advice. Verify current rules, product documents and your own facts before acting.