Floating Rate Home Loan Simulator

A floating rate home loan (also called a variable rate loan) has an interest rate that changes over time based on a benchmark rate set by your bank or the RBI. In India, most banks link their floating rates to the Repo Rate or an internal benchmark. When the benchmark moves, your loan rate moves with it, sometimes up, sometimes down. Unlike a fixed rate loan where the EMI is locked for the entire tenure, a floating rate loan means your EMI or loan duration can change at each reset.

It depends on your loan agreement. Most banks reset floating rates quarterly or annually. For repo-linked loans (RLLR), resets can happen as frequently as every quarter. For MCLR-linked loans, the reset period is typically 6 months or 1 year as specified in your sanction letter. You will receive a communication from your bank whenever your rate is revised. This simulator lets you add a rate change event at any month to see exactly how that revision affects your repayment.

💡 Pro Tip: Check your loan sanction letter for the "rate reset clause". It tells you exactly how often your rate can change.

This is the most important decision in a floating rate loan. There is no single right answer, it depends on your situation.

Reduce tenure saves you significantly more total interest. You pay the same EMI but finish the loan earlier. This is the better choice if your income is stable and you can afford the current EMI comfortably.

Reduce EMI lowers your monthly outflow immediately, giving you more cash in hand every month. This is better if your finances are tight or if you want liquidity for other investments.

💡 Pro Tip: Use this simulator to compare both options side by side, add the same event twice with different options and compare the total interest saved.

A part payment (also called a prepayment) is when you pay an extra lump sum amount over and above your regular EMI. This amount is applied directly to your outstanding principal, which reduces the base on which future interest is calculated. Even a single part payment early in the loan tenure can save lakhs in interest because interest compounds on the remaining principal for all remaining months.

💡 Pro Tip: Part payments made in the first half of your loan tenure have a much higher impact than those made later, because interest is front-loaded in the amortization schedule.

As per RBI guidelines, banks and NBFCs cannot charge any prepayment penalty on floating rate home loans taken by individual borrowers. This means you can make part payments at any time without any extra charges. However, some lenders may charge a small administrative fee or have a minimum prepayment amount. Always check your loan agreement or call your bank to confirm before making a payment.

A fixed rate loan locks your interest rate for the entire tenure or a defined period. Your EMI stays the same regardless of market conditions. This gives predictability but you miss out if rates fall.

A floating rate loan moves with the market. When rates fall (like during a rate cut cycle), your EMI or tenure reduces automatically. When rates rise, it increases. Historically in India, floating rates have worked out cheaper over a 15-20 year loan tenure compared to fixed rates.

💡 Pro Tip: Most home loans in India today are floating rate. If you are offered a fixed rate, check if it converts to floating after 3-5 years, many do.

Yes, and this simulator supports exactly that. When you click Pay on any month, the event modal lets you enter a new interest rate, a part payment amount, or both together. This reflects real-life scenarios where your bank resets your rate in the same month you make a bonus payment. The simulator applies the part payment first and then calculates the new EMI or tenure based on the revised principal and the new rate.

This simulator uses standard reducing balance amortization, which is the method all Indian banks use for home loans. The interest for each month is calculated as (Outstanding Principal x Annual Rate) / 12. For a straightforward loan with no events, the schedule will match your bank statement almost exactly.

Small differences may appear because banks may round EMIs to the nearest rupee, apply part payments on specific dates within the month, or include processing fees, GST on charges, and prepayment fees, none of which are modelled here. Use this tool for planning and comparison, not as a substitute for your official bank statement.

The two most effective strategies are:

1. Make part payments early and consistently. Even small annual lump sums, like bonus payouts or tax refunds, applied to the principal in the first 5 years of a 20-year loan can save 3-5 years of EMIs.

2. Choose reduce tenure over reduce EMI whenever your bank resets to a lower rate. Your cash flow stays the same but you exit the loan years earlier, saving a large amount in interest.

💡 Pro Tip: Simulate both strategies here before your next rate reset or bonus month, the interest saved column in the amortization table shows the exact impact.