Floating vs Fixed Interest Rate: Which Is Better for Your Home Loan?

When you take a home loan, the bank asks you to choose between a floating rate and a fixed rate. Your choice decides how your EMI or tenure may change over the next 15–30 years. Let’s understand both in simple words.

What is a floating interest rate?

A floating rate changes over the loan’s life. In India, most new floating-rate home loans for individuals are linked to an external benchmark, usually the RBI repo rate. Your rate is:

Your rate = Benchmark rate + Spread

The spread is the bank’s margin. It is decided at the start based on your profile and usually stays the same unless your credit risk changes. When RBI changes the repo rate, your rate changes too, after the next reset date. Under RBI rules, rates on external benchmark loans are reset at least once every three months.

Advantages

• Usually cheaper at the start than fixed rates.
• When interest rates fall, you benefit automatically.
• No prepayment penalty on floating-rate loans taken by individuals, as per RBI rules.

Disadvantages

• When rates rise, your cost goes up.
• Uncertainty: you cannot be sure what you will pay in total.

What is a fixed interest rate?

A fixed rate stays the same for a set period. In India, truly fixed rates for the whole tenure are rare. Many “fixed” home loans are fixed only for the first few years, after which they become floating. Always read this clause carefully.

Advantages

• Certainty: the same EMI, easy to budget.
• Protection if interest rates rise sharply.

Disadvantages

• Usually higher than floating rates at the time you borrow, often by 1% or more.
• No benefit when rates fall.
• Prepayment charges may apply on fixed-rate loans.

What happens to your EMI when rates change?

When floating rates go up, most banks increase your tenure first and keep your EMI the same. This feels painless, but it can add years to your loan. RBI has asked banks to communicate clearly to borrowers, and to give them options at the time of reset: to increase the EMI, extend the tenure, or a mix of both, and also an option to switch to a fixed rate as per the bank’s policy.

Banker’s advice: when rates rise, choose to increase the EMI if you can afford it, rather than letting the tenure stretch.

How much difference does a rate change make?

On a ₹30 lakh loan for 20 years:

A 1% move changes the EMI by about ₹1,900 a month. Over 20 years, that adds up to several lakh rupees. This is why knowing how your rate moves is important.

Which should you choose?

Choose floating if:

• Your loan is long (15 years or more). Interest rates move in cycles, and over long periods floating has often worked out cheaper.
• You plan to prepay. Floating loans have no prepayment penalty.
• Your budget has some room to handle an EMI increase.

Consider fixed if:

• Your budget is very tight and you cannot handle any increase.
• Rates are unusually low and the fixed rate offered is close to the floating rate.
• The loan is short and you value certainty over saving.

For most salaried borrowers with long home loans, a floating rate linked to the repo rate is the practical choice, combined with a habit of prepaying when possible.

Already have a floating loan? Check these 3 things

1. Which benchmark is your loan linked to? Older loans on base rate or MCLR may be costlier. Ask your bank about moving to the repo-linked rate.
2. What is your spread? Compare it with what new borrowers get. If yours is higher, ask for a reduction.
3. What is your current remaining tenure? If rate hikes have stretched it, consider raising your EMI.

Frequently asked questions

Disclaimer: Rules and products differ across banks. Please read your loan agreement and the Key Fact Statement before choosing.