Key Takeaways
- Fixed rates give certainty; floating rates move with a benchmark.
- Floating rates fall when benchmarks fall — and rise when they rise.
- Fixed-rate loans may carry a slightly higher starting rate.
- The right choice depends on rate outlook and your need for certainty.
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Fixed rate
With a fixed interest rate, the rate — and therefore your EMI — stays the same for the agreed period. This gives budgeting certainty and protection if market rates rise, but you will not benefit if rates fall.
Floating rate
A floating rate is linked to a benchmark, so it moves up or down as that benchmark changes. When rates fall, your interest cost drops; when they rise, it increases. Lenders typically adjust either the EMI or the tenure to absorb the change.
Illustration: a ₹50 lakh home loan over 20 years
At 8.5% the EMI is about ₹43,391. If a floating rate rises to 9%, the EMI needed to finish on time becomes about ₹44,986 — ₹1,595 more every month, or roughly ₹19,000 a year. Many lenders do not raise the EMI immediately; they extend the tenure instead, which keeps the monthly outgo stable but adds many months of interest. Ask your lender which it does by default and whether you can choose.
How floating rates are set
Since October 2019 the RBI has required banks to link new floating-rate retail loans to an external benchmark, most commonly the repo rate, plus a spread. When the repo rate changes, the loan rate resets at the next review date (typically within three months). Non-banking finance companies may use their own benchmark. The spread is fixed at sanction but can include a credit-risk premium that the lender may revise if your profile changes.
Questions to ask before choosing
- Is the "fixed" rate truly fixed for the full tenure, or only for an initial period before converting to floating?
- What is the prepayment or foreclosure charge? The RBI bars such charges on floating-rate loans to individuals, but fixed-rate loans may carry them.
- If rates fall, does the lender pass the cut on automatically, or must you request a reset (sometimes for a fee)?
- Can you switch from fixed to floating later, and at what cost?
Test the EMI at a few rates with the Home Loan EMI calculator to see how much rate movement your budget can absorb.
How to decide
If you value predictable payments and expect rates to rise, a fixed rate can be reassuring. If you can tolerate variability and expect rates to fall or stay stable, a floating rate may cost less overall. Because rate outlooks are uncertain, many borrowers weigh their own need for certainty most heavily. Model different rates in the EMI calculator to see how sensitive your EMI is to rate changes.
Sources
We reference primary and official sources. Rate- and rule-dependent details must be verified against the latest official information.
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How Is EMI Calculated?
An EMI is calculated with a standard formula from the loan amount, the monthly interest rate, and the number of months. Each EMI pays some interest and some principal.
loansHow Loan Interest Works
Most loans charge interest on the reducing outstanding balance, so interest falls as you repay. A flat rate charges on the original amount throughout and is effectively costlier.
loansHow Loan Prepayment Works
Prepaying a loan reduces the outstanding principal, which lowers future interest. You can usually choose to shorten the tenure or reduce the EMI — shortening tenure saves the most interest.