Home Loan EMI Calculator

An EMI — Equated Monthly Instalment — is the fixed amount you pay your lender every month until the loan is repaid. It is set at the start from three things: how much you borrow, the interest rate, and how long you take to repay. Once set, it does not change unless the rate or the tenure does.

What does change, every single month, is what the instalment is doing. Each EMI covers the interest that accrued that month, and whatever is left over reduces the outstanding balance. Because interest is charged on the balance, and the balance is highest at the start, the early instalments are mostly interest.

On a ₹50 lakh loan at 8.5% a year over 20 years, the EMI is ₹43,391. The very first instalment breaks down like this:

1Outstanding balance        ₹50,00,0002Interest for the month     ₹35,417   ← 8.5% ÷ 12 of the balance3Principal repaid          ₹7,9744                          ────────5EMI                       ₹43,3916 7New balance               ₹49,92,026

Just ₹7,974 of that first ₹43,391 reduces the loan. By the final instalment the proportions have reversed almost entirely. Watching that reversal — in the schedule and the chart above — is the single most useful thing this calculator does, because it explains why prepaying early is worth so much more than prepaying late. The arithmetic is not specific to property: the general EMI calculator runs the same formula for a car, personal or education loan.

Four inputs go into the standard reducing-balance calculation every Indian home loan uses.

• Principal (P). The amount you borrow — the property price less your down payment, not the price itself.
• Annual interest rate. The rate as quoted, per year. 8.5% here is an example assumption, not a market rate.
• Monthly interest rate (r). The annual rate divided by 12 and by 100. At 8.5%, r = 8.5 ÷ 12 ÷ 100 = 0.00708333.
• Number of payments (n). The tenure in months. Twenty years is 240 payments — the figure that goes into the formula, not the number of years.

“Reducing balance” is the part worth pausing on. Interest is charged each month on what is still outstanding, not on the original amount. If it were charged on the original amount — flat interest, which some smaller consumer loans still use — the same headline rate would cost you far more.

The one formula behind every figure on this page:

1            P × r × (1 + r)^n2EMI  =  ─────────────────────────3              (1 + r)^n − 14 5P  =  principal — the amount borrowed6r  =  monthly interest rate  =  annual rate ÷ 12 ÷ 1007n  =  total number of monthly payments  =  years × 12

The conversion from an annual rate to a monthly one is where mistakes usually creep in. A rate quoted as 8.5% per year is not 8.5% per month — divide by 12 first, then by 100 to turn the percentage into a fraction.

1P = 50,00,0002r = 8.5 ÷ 12 ÷ 100 = 0.007083333n = 20 × 12 = 2404 5(1 + r)^n = 1.00708333^240 = 5.427026 7        50,00,000 × 0.00708333 × 5.427028EMI = ──────────────────────────────────── = ₹43,3919                  5.42702 − 110 11Total payment  = 43,391 × 240 = ₹1,04,13,87912Total interest = 1,04,13,879 − 50,00,000 = ₹54,13,879

Zero-interest loans are a separate case. With r = 0 the denominator becomes zero and the formula breaks, so the calculation is simply the principal spread evenly: EMI = P ÷ n. This calculator handles that as its own branch rather than by nudging the rate to 0.0001 and hoping — an interest-free loan is a real thing, most often a builder subvention or a staff loan, and it deserves the right answer rather than an approximation.

One more detail, which is why the final row of a schedule sometimes differs by a rupee or two: the EMI is almost never a round number. Carry it at full precision through all 240 rows and the balance closes exactly; round it to whole rupees first and the error compounds. This tool computes at full precision and rounds only for display, then adjusts the last instalment to land the balance on exactly zero — which is what lenders do too, for the same reason.

The useful way round is backwards: start from the EMI you can comfortably carry and see what loan that supports. Starting from the price of a house and hoping the EMI works out is how people end up with a loan that is technically approved and practically suffocating.

What goes into the assessment — yours and the lender’s:

• Monthly income. Take-home, after tax and deductions. Not the CTC on your offer letter.
• Existing EMIs. Car, personal, education, credit-card instalments. These come off the top, rupee for rupee.
• The EMI-to-income share. Lenders commonly work somewhere in the 40–60% range for all EMIs together, varying it with income and profile. It is a guideline, not a law, and a lower number leaves more room to live.
• Interest rate and tenure. Together these decide how much loan a given EMI buys. A longer tenure supports a bigger loan at the same EMI — and costs considerably more in total.
• Down payment. Larger deposit, smaller loan. It also affects the loan-to-value ratio, which lenders cap.
• Household expenses. Not in any formula, and the thing that actually decides whether an EMI is liveable. School fees, medical costs, help at home, an emergency fund that must survive the down payment.

None of this is an approval.A lender weighs credit history, employment stability, the property and its own policy, and reaches its own figure — which may be higher or lower than any calculator’s. Use the Afford tab above for a planning number, and the loan eligibility calculator if you want to look at eligibility on its own.

Tenure is the lever most borrowers reach for, and the one most likely to be pulled too far. A longer tenure lowers the monthly EMI and raises the total interest, because the money stays borrowed for longer. Both halves of that sentence matter.

Small differences in rate produce large differences in money, because they compound over a very long period. This is the single strongest argument for shopping around.

A prepayment is any payment above the EMI that goes against the principal. Because interest is charged on the outstanding balance, cutting the balance cuts every future month’s interest — permanently.

Part-prepayment pays down some of the balance and the loan continues. Foreclosure clears it entirely and closes the loan. A one-time prepayment is a single lump sum — a bonus, a maturing deposit. A recurring prepayment is a smaller amount paid every year, which is usually more achievable and, over a long tenure, often saves more.

Whichever it is, your lender will ask you to choose what happens next:

• Reduce the tenure. The EMI stays the same and the loan finishes sooner. This saves considerably more, because you stop paying interest earlier.
• Reduce the EMI. The end date stays the same and the monthly payment falls. Better for cash flow, much weaker on interest — you are still borrowing for just as long.

If the current EMI is affordable, reducing the tenure is almost always the better financial choice. If money is tight every month, the smaller EMI may be worth more to you than the interest saving — that is a judgement about your life, not about the arithmetic. The Prepay tab above computes both for your own numbers.

Timing matters as much as the amount. The same lump sum saves far more in year 2 than in year 15, because by year 15 most of the interest has already been paid. If you are going to prepay, prepay early.

Lender rules differ and are not modelled here: minimum prepayment amounts, when in the cycle a payment is credited, which of the two options happens by default, and whether a charge applies. Fixed-rate loans in particular more often carry prepayment fees. Read your loan agreement before committing a large sum.

The down payment is the part of the price you pay from your own funds. Everything else is borrowed, so the deposit sets the loan — and through it, the EMI and the total interest.

Comparing an EMI to rent as if they were the same kind of number is the commonest mistake in this whole area. They are different transactions with different risks, and neither answer is universally right.

The choice is between certainty and cost, and the terms vary enough between lenders that the agreement matters more than the general rule.

Six things genuinely work. Each has a trade-off, and the trade-off is the part usually left out.

• Put down more. The most direct lever — a rupee not borrowed is a rupee that accrues no interest. Trade-off: less cash for the costs that land alongside the purchase, and a thinner emergency fund.
• Take a shorter tenure. Ten years instead of twenty roughly halves the interest on the figures above. Trade-off: a much higher EMI, every month, including the bad ones.
• Get a better rate. Half a point is worth ₹3,82,833 on a ₹50 lakh twenty-year loan. Compare offers, and consider refinancing if your rate has drifted above what is available. Trade-off: refinancing has its own processing and legal costs — work out the break-even before moving.
• Prepay regularly. Even one extra EMI a year makes a visible dent over a long tenure, and it works best in the early years. Trade-off: money committed to the loan is money not invested elsewhere, and not available in an emergency.
• Raise the EMI as your income grows. A step-up of a few thousand rupees after a raise shortens the loan meaningfully and is easier to sustain than a large lump sum. Trade-off: your lender has to permit it, and it locks in a higher monthly commitment.
• Compare the total, not the EMI. The cheapest monthly payment is routinely the most expensive loan. Use the total-interest column. Trade-off: none — this one is free.

One caution on prepaying versus investing: paying down a loan is a guaranteed return equal to your interest rate, which is a genuinely good return for zero risk. Whether an investment beats it depends on the investment, your tax position and your appetite for risk — and that is a question for a financial adviser rather than a calculator.

All five worked at the same illustrative assumptions — 8.5% a year over 20 years — so the amounts can be compared directly. These are example assumptions and not current market rates; enter your own quoted rate above for figures that mean anything for your loan.

The EMI is the largest cost and not the only one. These land before or alongside the loan, and they are paid from your own funds:

• Processing fee. Charged by the lender for assessing and disbursing the loan, often as a percentage of the amount with a cap — the percentage calculator turns that quoted rate into a rupee figure.
• Legal and documentation charges. For verifying the property title and preparing the loan documents.
• Technical valuation.The lender’s own assessment of what the property is worth — which is what the loan-to-value cap applies to.
• Insurance. Property insurance, and sometimes loan protection cover. Check whether any of it is optional before agreeing to it.
• Stamp duty. A state tax on the transaction, usually the largest single line after the deposit. Rates vary by state, and several states charge differently depending on the buyer.
• Registration charges. Paid to register the transfer of ownership. Also set by the state.
• Everything after. Maintenance deposits, society charges, moving, fit-out and the repairs that appear in the first year.

The Afford tab has fields for the lender’s charges so you can see the day-one cash requirement. Stamp duty and registration are deliberately left out — they vary by state and by buyer, and a number invented here would be worse than no number at all. Look up your state’s rates and add them yourself.

• Choosing the longest tenure because the EMI looks comfortable. On the figures above, thirty years instead of twenty saves ₹4,945 a month and costs ₹34,26,564 more. Take the long tenure if you need it — but with your eyes open.
• Comparing loans on the EMI alone. The lowest monthly payment is routinely the most expensive loan. Total interest is the number that decides which offer is cheaper.
• Borrowing the maximum you are approved for.Sanction is a lender’s assessment of what you can repay, not of what you can live with. They do not know about the school fees.
• Not reading the prepayment terms. Whether prepayment is allowed, what it costs, the minimum amount, and whether it shortens the tenure or lowers the EMI by default — all of it is in the agreement, and all of it is worth knowing before you sign rather than after.
• Ignoring the costs that are not the EMI. Stamp duty, registration and fees regularly add up to a large sum that has to be found in cash, in the same month as the deposit.
• Emptying the emergency fund. A fixed monthly obligation makes savings more important, not less. Three to six months of expenses that survive the purchase is the difference between a bad month and a default.
• Assuming approval. Booking a property, or paying a non-refundable token, before the loan is sanctioned is a risk with no upside.
• Not checking the lender’s own schedule. Once the loan is running, compare the amortisation statement against this calculator. If the numbers disagree, the reason is usually a fee, a rate change or a different disbursement date — and it is worth finding out which.