Fixed vs Floating Interest Rate: Which Loan Is Better?

A floating interest rate moves with a benchmark such as the RBI repo rate, so your EMI or tenure changes over time; a fixed rate stays the same for an agreed period. For long-tenure loans like home loans, floating rates are usually the better default because fixed rates start noticeably higher and most "fixed" home loans become floating after a few years anyway. Fixed rates make more sense for short loans or when payment certainty matters more than cost.

How a floating interest rate works

A floating rate has two parts:

Floating rate = External benchmark + Spread

• Benchmark: For banks, new floating-rate retail loans have been linked to an external benchmark since October 2019, and most banks use the RBI repo rate. The resulting rate is called the repo-linked lending rate (RLLR) or EBLR. Older loans may still be on MCLR or base rate. Housing finance companies use their own prime lending rate.
• Spread: The lender's margin, set at the start based on your credit risk. It generally stays fixed for the life of the loan unless your credit assessment changes substantially as defined in the contract.

Under RBI rules, the rate on an external-benchmark loan must reset at least once every three months. So when the RBI changed the repo rate — cutting it from 6.50% to 5.25% between February and December 2025, then raising it to 5.50% on 7 October 2026 — repo-linked borrowers felt it within a quarter. See repo rate impact on EMI.

How a fixed interest rate works

A fixed rate is locked at sanction. Your EMI does not change regardless of what the RBI does. In practice there are three flavours:

• Fully fixed: Same rate for the whole tenure. Common for car loans, personal loans and two-wheeler loans; uncommon for long home loans.
• Fixed for an initial period (hybrid): Fixed for 2-5 years, then floating. This is what most "fixed-rate home loans" are.
• Fixed with reset clause: Labelled fixed, but the agreement lets the lender revise the rate after a set period or in "exceptional" conditions. Read the fine print.

Fixed vs floating: side-by-side

Worked example: what does the certainty cost?

Take a ₹50 lakh home loan for 20 years (240 months). Suppose a lender offers 7.75% floating or 9.50% fixed.

• Extra EMI for the fixed rate: ₹46,607 − ₹41,047 = ₹5,560 a month
• Extra interest over 20 years: about ₹13.34 lakh

For the fixed loan to be the cheaper choice, the floating rate would have to average roughly 1.75 points higher over the whole 20 years — not just spike for a year or two. Over most of the last two decades, Indian rates have moved in cycles of hikes and cuts rather than staying high, which is why floating has usually won on long loans. Past cycles do not guarantee the future, but this is the trade-off you are paying for. Test your own numbers on the EMI calculator.

When a fixed rate makes sense

• Short tenure loans (up to 3-5 years), where the gap between fixed and floating is small and the rate risk window is short.
• Tight budgets where even a few thousand rupees of EMI increase would cause real stress.
• Personal and vehicle loans, which are usually fixed anyway; see our personal loan interest rates guide.
• When the fixed rate on offer is unusually close to the floating rate, say within 0.5 points.

When a floating rate makes sense

• Home loans and loans against property with 10-30 year tenures.
• If you plan to prepay. Floating-rate loans to individuals for non-business purposes carry no prepayment penalty. RBI's Pre-payment Charges on Loans Directions, 2025 apply this to all regulated lenders for loans sanctioned or renewed on or after 1 January 2026.
• When you can absorb some EMI variation or are comfortable letting the lender extend the tenure instead.

Switching between floating and fixed

RBI's August 2023 circular on resetting floating interest rates on EMI-based loans to individuals requires lenders to:

1. Explain at sanction how a rate change may affect your EMI or tenure.
2. Offer you the option to switch to a fixed rate at the time of a reset, under the lender's board-approved policy (which may limit how many times you can switch).
3. Let you choose between a higher EMI, a longer tenure or a mix, and to prepay in part or full at any time.
4. Disclose all switching charges in the sanction letter, and send a quarterly statement showing principal and interest paid, EMI and remaining tenure.

Before switching to fixed mid-loan, compare the fixed rate offered with your current floating rate. Switching after a rate hike often locks you in near the top of the cycle.

Practical tips

• Prefer a repo-linked floating loan over MCLR: it passes on cuts faster and the formula is easier to check.
• Negotiate the spread, not just the starting rate; the spread decides your rate for the next 20 years. See how to get the lowest loan interest rate.
• If you take a hybrid fixed loan, note the date it turns floating and what benchmark and spread it will use.
• Keep an emergency fund of a few months of EMIs to ride out rate hikes on a floating loan.

Questions to ask before you sign

1. Is the rate fixed for the full tenure or only for an initial period? If only for a period, what happens after it ends?
2. Which benchmark is the floating rate linked to — repo rate, MCLR or the lender's own prime lending rate — and what is my spread?
3. How often does the rate reset, and on which dates?
4. What are the charges for switching from floating to fixed, or fixed to floating, and how many switches are allowed?
5. Is there any prepayment or foreclosure charge, and on what amount is it calculated?
6. If rates rise, will you increase my EMI or my tenure by default, and how will you inform me?

Get the answers in the sanction letter or Key Fact Statement, not just verbally from a sales executive.

Key takeaways

• A floating rate moves with a benchmark (usually the repo rate) and resets at least quarterly; a fixed rate stays constant for an agreed period.
• On a ₹50 lakh, 20-year loan, choosing 9.50% fixed over 7.75% floating costs ₹5,560 more a month and about ₹13.34 lakh more in interest if rates stay put.
• Most fixed-rate home loans in India are fixed only for the first few years.
• Floating-rate loans to individuals for non-business purposes cannot carry prepayment charges; fixed-rate loans can.
• RBI requires lenders to offer a floating-to-fixed switch at reset, with charges disclosed upfront.