Free EMI Calculator with Amortization

An EMI (Equated Monthly Installment) is the fixed amount you pay every month on a loan that uses the reducing-balance method. Every Indian retail loan — home, car, personal, education, business — is structured this way. The EMI never changes, but the split between interest and principal shifts: early months are mostly interest, later months are mostly principal.

This calculator gives you four things in seconds: your monthly EMI, the total interest you will pay over the life of the loan, the total amount repaid, and a month-by-month amortization schedule. No signup, no ads, no email gate.

The textbook formula is:

EMI = P × r × (1+r)^n / ((1+r)^n − 1)

Where:

• P = principal (the amount you borrow).
• r = monthly interest rate (annual rate / 12 / 100). A 9% annual rate becomes 0.0075.
• n = tenure in months (20-year home loan = 240).

Interpretation: the lender effectively rents you the principal at the monthly rate r, and you pay back a level EMI over n months. The compound term (1+r)^n captures how rapidly the loan balance grows if left untouched; dividing by (1+r)^n − 1 spreads that growth evenly across the tenure.

If the rate is exactly zero, the formula collapses to EMI = P / n — a simple linear repayment.

Every EMI is a fixed amount, but the internal split changes every month:

• Interest portion = outstanding balance × monthly rate. Highest in month 1, smallest in the final month.
• Principal portion = EMI − interest. Smallest in month 1, largest in the final month.
• Outstanding balance = previous balance − principal portion paid this month.

For a ₹50L home loan at 8.5% over 20 years (240 months), the monthly EMI works out to about ₹43,391. In month 1, roughly ₹35,400 of that is interest and only ₹7,990 is principal. By month 240, the split flips: about ₹305 is interest and ₹43,086 is principal. Total interest paid over 20 years comes to roughly ₹54L — more than the original principal.

Why this matters for prepayment

Because interest is computed on the outstanding balance, prepayments made early in the loan save more interest than prepayments made late. A ₹1L prepayment in year 2 of a 20-year loan saves you years of compound interest; the same prepayment in year 18 saves you a few thousand rupees. The "prepay early" rule is not folk wisdom — it falls directly out of the formula.

Lenders compete on three axes: interest rate, processing fee, and tenure flexibility. Use the EMI calculator to compare on a like-for-like basis:

1. Compute EMI at each lender's rate for the same tenure. A 0.5% rate difference can mean ₹2,000–₹3,000 less per month on a 20-year ₹50L loan.
2. Add the upfront cost of the loan — processing fees (usually 0.5%–1% of principal), legal fees, valuation fees, stamp duty on the loan agreement. A "lower rate" offer that comes with a ₹50,000 higher processing fee may actually be more expensive in year 1.
3. Check the loan reset clause. Most home loans are floating-rate, repriced against the bank's MCLR / EBLR every 3-6 months. A bank that resets quickly during a falling-rate cycle is preferable; during a rising-rate cycle, you want a longer reset.
4. Check the prepayment penalty. Floating-rate retail loans cannot charge prepayment penalty under RBI rules, but fixed-rate loans usually can (2-4% of the prepaid amount). If you plan to prepay, choose floating.

If the loan is a home loan secured against a self-occupied property, you can claim two income tax deductions every year:

• Section 80C — principal repayment up to ₹1.5 lakh per financial year (shared with PPF, EPF, ELSS, life insurance premium, and tuition fees).
• Section 24(b) — interest payment up to ₹2 lakh per financial year for a self-occupied property. No upper limit on let-out property, but losses are capped at ₹2 lakh under the head "Income from House Property".

For a let-out property, you can claim the full interest paid, with the rental income added to total income and offset by 30% standard deduction on rent. Maintain the EMI breakup statement issued by your bank — it splits each EMI into principal and interest, which is what the income-tax department checks during assessment.

For business loans (MSME, vehicle, equipment, working capital), the EMI formula is the same. The bookkeeping treatment is different:

• Each EMI must be split into principal and interest on the books. The principal portion reduces the loan liability; the interest portion is an operating expense (debit to "Interest on loan", credit to bank).
• Interest is fully deductible from business income under Section 36(1)(iii).
• Processing fees can be amortized over the loan tenure or expensed in year one — the latter is more common.
• If the loan funds capital assets (vehicle, machinery), the interest during the construction / pre-operative period is capitalized into the asset cost; post-operative interest is expensed.

ReadyBooks lets you set up a loan account once with principal, rate, and tenure, and it auto-posts every monthly EMI as the right journal entry — principal to liability, interest to expense.

Knowing your EMI is the first step. Living with it means tracking it: bank statement reconciliation, principal/interest split on the P&L, loan liability tracking on the balance sheet, and tax-time interest certificate. ReadyBooks does all of this for free — create a loan account once, attach the bank account, and every EMI posts automatically. Save to ReadyBooks above to start.