What Nobody Tells You About Home Loans in India

Month 18 of my home loan, I finally sat down with a spreadsheet and properly looked at my amortization schedule.

I went quiet for a long time after that.

Of the ₹28,400 I'd been paying every month for the past year and a half, only about ₹8,000 had actually gone toward reducing what I owed. The remaining ₹20,400 was pure interest — money that just disappeared into the bank's pocket.

I knew home loans had interest. I did not understand just how much interest comes out of early EMIs.

Why early EMIs are mostly interest

Your bank calculates your interest on the outstanding principal — the amount you still owe them. In month one of a 20-year loan, that's almost your entire loan amount. So most of your first EMI goes toward interest, and only a sliver reduces the principal.

As months pass and your outstanding balance slowly shrinks, the interest component of each EMI decreases, and more goes toward the principal. This is what amortization means. It's not a scam — it's just math. But the math looks brutal when you see it laid out month by month.

Let me show you with a real example.

A ₹40 lakh loan at 8.5% for 20 years

Monthly EMI: ₹34,713

Ten years into a 20-year loan at ₹40 lakhs, you've paid about ₹41.6 lakhs in EMIs. Your outstanding balance? Still ₹23.8 lakhs. You've only paid off about ₹16 lakhs of your original ₹40 lakh loan.

The total interest you'll pay over 20 years on this loan: roughly ₹43.3 lakhs. That's more than the original loan amount.

This isn't hidden. It's in every loan document. But nobody sits you down and explains it before you sign.

The FOIR thing banks check — and why you should care

FOIR stands for Fixed Obligation to Income Ratio. It's the percentage of your monthly income that goes toward fixed loan repayments.

Banks typically approve home loans only when your total monthly EMI obligations (home loan + any car loan + personal loan + credit card minimums) stay below 50% of your gross monthly income. Many prefer 40-45%.

The practical implication: if you have an existing car loan EMI of ₹8,000/month and your salary is ₹60,000/month, the bank will limit your home loan EMI to roughly ₹22,000 (50% of 60K minus the existing 8K). That determines the maximum loan amount you'll get.

If you're planning to take a home loan in the next 1-2 years, closing your other loans first genuinely increases how much you can borrow.

Prepayment — the most underrated move

Here's what I wish someone had told me before I took my loan: prepaying even a small amount in the early years saves a disproportionate amount of interest.

Why? Because the interest is calculated on outstanding principal. When you prepay ₹1 lakh in year 2 of a 20-year loan, that ₹1 lakh would have otherwise kept generating interest for 18 more years. The interest you save can be 2-3x the amount you prepaid.

Let's say you have the ₹40 lakh loan at 8.5% for 20 years. If you prepay just ₹2 lakhs in year 3 with the "reduce tenure" option:

• Your EMI stays the same (₹34,713)
• Your loan ends about 2.5 years early
• You save roughly ₹8-9 lakhs in total interest

₹2 lakhs invested in reducing the loan saves ₹8-9 lakhs. That's a better return than most fixed deposits.

When prepaying, always choose "reduce tenure" over "reduce EMI" if you can manage the current EMI comfortably. Reducing tenure saves significantly more interest because the loan closes earlier and stops accumulating interest.

When to choose a shorter tenure even if it means a higher EMI

The most common mistake I see first-time home loan buyers make is choosing the longest tenure possible to keep the EMI low. I understand the logic — lower EMI means more breathing room. But the interest cost of that breathing room is enormous.

Compare a ₹40 lakh loan at 8.5%:

The difference between a 10-year and 25-year loan: ₹17,280 extra per month in EMI, but ₹37 lakhs less in total interest. Every year of extra tenure costs you roughly ₹5-6 lakhs in interest.

If your income can handle a higher EMI, a shorter tenure is almost always the financially better choice. The emotional security of a lower EMI has a real, measurable price tag.

Tax benefits — worth claiming, but not the whole story

Two tax deductions on home loans under the old tax regime:

• Section 80C: Principal repayment up to ₹1.5 lakhs per year. This is part of the same ₹1.5L bucket as PF, ELSS etc.
• Section 24B: Interest paid up to ₹2 lakhs per year (for self-occupied property).

At the 30% tax bracket, ₹2 lakhs of interest deduction saves you ₹60,000 in tax (plus cess). That's real money. But in year one of the loan above, you're paying ₹3.3 lakhs in interest — only ₹2 lakhs of that is deductible. The other ₹1.3 lakhs is gone regardless.

Also worth knowing: these deductions are only available in the old tax regime. If you've switched to the new regime (which is now better for most people after Budget 2025 — see our other post on that), you can't claim these.

The thing I'd do differently

If I were taking my home loan today, I'd do two things differently.

First, I'd choose a 15-year tenure instead of 20. Yes, the EMI is higher. But looking at my amortization schedule, I would have saved about ₹12 lakhs in interest over the life of the loan. That's a significant number.

Second, I'd make small prepayments of ₹50,000-1 lakh annually whenever I had extra savings rather than putting it all in FDs. The effective return on loan prepayment (at 8.5%) beats most conservative investments after tax.

Before I got my loan, I wish someone had handed me an amortization schedule and said: "Look at this carefully. Understand what you're signing." It's not meant to be scary — it's meant to help you make better decisions about tenure, prepayment, and how you budget for the next decade.

The EMI calculator below generates that schedule for your exact loan. Worth spending five minutes with before you sign anything.