How home loan EMI is calculated
Your home loan EMI is a fixed monthly payment made up of interest and principal,
calculated on a reducing-balance basis:
EMI = P × r × (1 + r)ⁿ ÷ ((1 + r)ⁿ − 1)
where P is the loan amount, r is the monthly interest rate (annual rate ÷ 12 ÷ 100) and n
is the number of months. Because interest is charged only on the outstanding balance, your early EMIs
are mostly interest and later ones mostly principal — which is exactly why prepaying early saves the
most.
Reduce EMI or reduce tenure?
When you prepay, you can either keep the EMI the same and shorten the tenure, or keep
the tenure and lower the EMI. Reducing the tenure almost always saves more interest,
because you stop paying interest sooner. Reducing the EMI eases monthly cash flow but keeps you in debt
for the full term. The prepayment toggle above lets you compare both instantly. This is the single
biggest lever on a home loan — a modest monthly extra can save several lakhs.
Home loan tax benefits (old regime)
- Section 24(b): up to ₹2,00,000 a year on interest for a self-occupied house.
- Section 80C: up to ₹1,50,000 a year on principal repayment (shared with EPF, PPF, ELSS, etc.).
- Section 80EEA: an extra ₹1,50,000 on interest for eligible affordable first homes (subject to conditions).
The new tax regime does not allow these deductions for a self-occupied property, so factor this into
your old vs new regime comparison.
Balance transfer & loan insurance
A balance transfer to a lower rate can save a lot when a large balance and long tenure
remain — just make sure the interest saved beats the processing fee and other switching costs. A
home loan protection plan clears your loan if something happens to you; compare its
single premium against a plain term plan for the same cover. Both are built into the
sections above.
Home loan vs other loans
Home loans have the longest tenures and lowest rates of any retail loan. For a generic loan of any
type, use our EMI calculator. Planning the down payment from savings? See
your in-hand salary and whether prepaying beats a
SIP.
Frequently asked questions
How is home loan EMI calculated?
Home loan EMI is calculated on a reducing-balance basis using EMI = P × r × (1+r)^n ÷ ((1+r)^n − 1), where P is the loan amount, r is the monthly interest rate (annual rate ÷ 12 ÷ 100) and n is the number of months. Interest each month is charged only on the outstanding balance, so early EMIs are mostly interest and later ones mostly principal.
Should I reduce EMI or reduce tenure when I prepay my home loan?
Reducing the tenure almost always saves far more interest, because you close the loan sooner and stop paying interest earlier — often saving several lakhs. Reducing the EMI keeps the same end date but lowers your monthly outgo, which helps cash flow. Rule of thumb: cut the tenure if you can comfortably keep paying the same EMI, and cut the EMI only if you need monthly relief. Use the prepayment toggle above to compare both for your loan.
How much interest can I save by prepaying my home loan?
A lot, especially early in the loan when the balance — and therefore the interest — is highest. On a ₹50 lakh, 20-year loan at 8.5%, paying just ₹10,000 extra every month can close the loan around 5 years sooner and save roughly ₹15–20 lakh in interest. Enter your extra payment above to see the exact saving.
What are the tax benefits on a home loan?
Under the old tax regime you can claim up to ₹2,00,000 a year on home loan interest under Section 24(b) for a self-occupied house, up to ₹1,50,000 on principal repayment under Section 80C, and — for eligible affordable first homes — an extra ₹1,50,000 on interest under Section 80EEA. The new tax regime does not allow these deductions for a self-occupied property. Use the tax-benefit section above to estimate your saving.
Is a home loan balance transfer worth it?
A balance transfer to a lower rate is worth it when the interest you save over the remaining tenure clearly beats the switching costs (processing fee, valuation, stamp/MOD charges). It usually makes the most sense early in the loan, when a large balance and long tenure remain. The balance-transfer section above nets the fee against the saving so you can decide.
What is home loan insurance and do I need it?
A home loan protection plan (HLPP) is an insurance cover that pays off your outstanding loan if you die (and sometimes on disability or job loss), protecting your family from the debt. It is not legally mandatory. A plain term insurance plan for the loan amount is usually cheaper and more flexible than a single-premium HLPP bundled into the loan — compare both with the insurance section above.
What is the difference between part-payment and foreclosure?
A part-payment (or part-prepayment) is paying an extra amount over your EMI to reduce the outstanding principal while the loan continues. Foreclosure (or preclosure) is paying off the entire remaining balance at once and closing the loan. On floating-rate home loans, the RBI does not allow banks to charge prepayment or foreclosure penalties to individuals.
Can I claim tax benefit and prepay the same year?
Yes. Prepaying reduces your outstanding principal and future interest, while the interest and principal you actually pay during the year still qualify for Section 24(b) and 80C respectively (old regime). Note that prepaying lowers future interest, which can reduce the interest deduction available in later years.
How is CIBIL score used for a home loan?
Your CIBIL score (300–900) is the first thing a lender checks. A score of 750+ is generally considered good and helps you get approved at the lowest interest rate; below about 650, approval is harder and the rate is usually higher. The score is calculated from your repayment history, credit utilisation, age and mix of credit, and number of recent enquiries — it is not derived from your loan amount or EMI. Because even a 0.25–0.50% lower rate saves a lot over a 20-year loan, it is worth improving your score before you apply. This calculator shows how much each rate costs, so you can see the value of a better score.