What This Calculator Actually Tells You
EMI is the fixed monthly cheque to the bank. Half the question is "what does it cost me a month?" The other half — usually ignored — is "how much extra do I hand the bank over 20 years?" This tool answers both.
Sample: the ₹50L home loan, two ways
₹50 Lakh loan, 8.5% floating, 20 years → EMI ≈ ₹43,391/month. Total interest paid over the life of the loan: ₹54.1 Lakh — more than the principal itself.
Cut tenure to 15 years → EMI rises to ₹49,237 (about ₹5,800 more a month) but total interest drops to ₹38.6 Lakh. You save ₹15.5 Lakh by giving up 5 years.
The Formula (if you want it)
- P — Principal
- R — Monthly rate (annual ÷ 12 ÷ 100)
- N — Months
Prepayment: where the real savings live
Indian banks cannot charge a prepayment penalty on floating-rate home loans for individual borrowers. RBI prohibits it. Use that.
A single ₹1 Lakh prepayment in Year 5 of the ₹50L/20-year loan above wipes out roughly ₹3.8 Lakh of future interest. Doing it every year shaves years off the tenure. When a bonus lands, this beats most investments after-tax — guaranteed return at your loan's rate.
Tax assumptions used here (Old Regime only)
- Section 24(b) — interest deduction, capped at ₹2 Lakh/year for self-occupied. No cap if the property is let out.
- Section 80C — principal deduction, capped at ₹1.5 Lakh/year. Shared with PPF, EPF, ELSS, LIC premium — so most salaried people have already maxed it before counting principal.
- Section 80EEA — extra ₹1.5L on interest for first-time buyers, stamp value ≤ ₹45L, loan sanctioned in the eligible window.
- None of this applies under the New Tax Regime. If you're on the new regime, the tax panel above is zero for you.
- Property still under construction? Interest is not deductible until possession. You can claim it later in 5 equal installments, still subject to the ₹2L cap.
Floating-rate caveat — read this
Floating-rate loans are pegged to the RBI repo rate (via EBLR or RLLR). When the repo moves, your EMI moves — usually within a quarter. The 8.5% you sign today is not the 8.5% you'll pay in Year 4. Banks adjust by extending tenure first, then EMI. Build a 1% buffer into your affordability math.
Fixed-rate loans lock the rate but start 1–2% higher and most "fixed" products are only fixed for the first 2–3 years anyway.
Ways to cut the total cost
- Bigger down payment — 25–30% if you can. Less principal, less interest, full stop.
- CIBIL above 750 unlocks the published rate. Below 700 you'll pay 50–100 bps more.
- Shorter tenure if cash flow allows. 15 vs 25 years on ₹50L saves over ₹30L in interest.
- Annual prepayment of 5% of outstanding — finishes a 20-year loan in roughly 12 years.
- Balance transfer after 2–3 years if a competitor offers 50+ bps lower. Watch the processing fee.
- Joint loan with spouse — both claim 24(b) and 80C separately if both are co-owners and co-borrowers.
- Stack with HRA exemption if you're salaried and the property is in another city, and verify your final tax in the Income Tax Calculator.
Quick reference — EMI at 8.5%, 20 years
- ₹30L → ~₹26,035/month · total interest ~₹32.5L
- ₹50L → ~₹43,391/month · total interest ~₹54.1L
- ₹75L → ~₹65,087/month · total interest ~₹81.2L
- ₹1Cr → ~₹86,782/month · total interest ~₹108.3L
- Comparing against a Loan Against Property? LAP rates run 1–2% higher.
Frequently Asked Questions
Should I prepay the loan or invest the spare amount?
Compare after-tax returns. If your loan is at 8.5% and you're in the 30% slab claiming full 24(b), your effective loan cost is roughly 7%. To beat prepayment, an investment must return more than 7% post-tax — and guaranteed. Equity may beat that over 10+ years but isn't guaranteed. FD or debt funds usually won't. Most buyers should prepay first, invest the surplus. Exception: if you're not maxing your 80C elsewhere, the principal-side tax benefit shifts the math.
Floating or fixed — which one?
Floating is the default in India and almost always cheaper at signing (8.35–9% vs 9.5–11% fixed). Repo cycles cut both ways: you save when rates drop, you pay more when they rise. Banks adjust tenure before EMI, so a rate hike often quietly adds 2–3 years to your loan. Pick fixed only if you genuinely cannot absorb a 1–1.5% rate shock and most "fixed" products only fix the first 2–3 years anyway.
Can I claim tax benefit on an under-construction property?
Not while it's under construction. Interest paid during construction is "pre-construction interest" — you claim it in 5 equal installments starting the year you get possession, still capped at ₹2 Lakh/year combined with current interest under Section 24(b). Principal under 80C also kicks in only after possession.
Reduce EMI or reduce tenure after prepayment?
Always reduce tenure unless cash flow is broken. Reducing EMI keeps you in the loan longer and the bank earns more interest. Reducing tenure compounds your saving. The bank will default to "reduce EMI" — you have to specifically ask for "reduce tenure."
What's the maximum tenure and does long tenure make sense?
Up to 30 years, capped by your retirement age (loan must clear before ~70). Longer tenure lowers EMI but the total interest balloons. On ₹50L at 8.5%, going 30 years instead of 20 cuts EMI by ~₹5K/month but adds ₹30L+ in interest. Take longer tenure only to qualify for the loan amount, then prepay aggressively.
How much tax can I actually save?
Old Regime only. Up to ₹2L/year on interest (Section 24(b)) + up to ₹1.5L/year on principal (Section 80C, shared with PPF/EPF/ELSS/LIC). First-time buyers may add ₹1.5L under 80EEA if eligible. At 30% slab, max combined saving is roughly ₹1.05L/year. Zero benefit under the New Regime.
Will my floating EMI actually stay at the rate I signed?
No. It's pegged to the RBI repo rate via EBLR. When the MPC moves the repo, your rate moves within a quarter. Plan with a 1% buffer on top of today's rate.
Is anything saved on your servers?
No. Everything runs in your browser. No data leaves your device, nothing is logged.