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Housing

How Much Home Loan Can You Actually Afford?

Banks will offer you more than you should take. The 40% EMI-to-income rule is a starting point — here's how to calculate the home loan amount that won't wreck your financial life.

Artha Research Published 13 April 2026 7 min read

The bank's loan eligibility number and the loan you should actually take are two different things. Banks calculate maximum eligibility — the most they are willing to lend given your income and credit history. Your affordability is determined by what leaves enough margin for everything else in your financial life.

Most people who get into housing loan trouble don't do so because of fraud or bad luck. They do it by taking the maximum loan the bank offered because it got them the property they wanted.

The standard rules — and why they're insufficient

The 40% EMI rule: Standard guidance says keep your home loan EMI under 40% of monthly take-home pay. On ₹1 lakh take-home, that's ₹40,000/month maximum EMI.

The FOIR rule: Banks look at your Fixed Obligation to Income Ratio — total monthly EMI obligations divided by gross income. The safe ceiling is 40-50% FOIR.

These rules are starting points. They don't account for:

A loan that satisfies the 40% rule can still be too large for your specific situation.

Calculate what you can genuinely afford

The full cost of homeownership (not just EMI)

When evaluating affordability, start with your all-in monthly cost of ownership — not just the EMI:

| Cost Component | Approximate Monthly Amount | |---|---| | Home loan EMI | Your calculated amount | | Society maintenance | ₹3,000–8,000 | | Property tax (amortised) | ₹1,000–1,500 | | Home insurance | ₹500–800 | | Repairs and wear (provision) | ₹2,000–3,000 | | Total | EMI + ₹6,500–13,300 |

If your comfortable EMI is ₹40,000 and these ancillary costs add ₹8,000, your true housing cost is ₹48,000/month — already 48% of a ₹1 lakh take-home. That leaves little room for investment, emergency fund, and discretionary spending.

Warning

Never calculate affordability on your current income alone. Home loans last 15-20 years. Model what happens if one income stops in a dual-income household, if you take a break for health or child, or if your variable pay component shrinks. Can the EMI still be serviced?

How loan tenure affects affordability

The temptation when affordability is tight is to extend the tenure to reduce the EMI. This works mathematically — but at a significant cost.

On a ₹75 lakh loan at 8.75%:

| Tenure | Monthly EMI | Total Interest Paid | |---|---|---| | 10 years | ₹93,500 | ₹37.2 lakh | | 15 years | ₹74,500 | ₹59.1 lakh | | 20 years | ₹66,000 | ₹83.4 lakh | | 25 years | ₹61,500 | ₹1.09 Cr | | 30 years | ₹58,900 | ₹1.37 Cr |

Moving from 20 to 30 years saves ₹7,100/month on EMI — but costs ₹54 lakh more in total interest. Take the shortest tenure your cash flow can support.

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A strong approach: take a 20-year loan but prepay aggressively in years 1-5 (when your income is often rising faster than inflation). You can convert a 20-year loan into a 12-year loan through prepayment while maintaining the flexibility of the lower mandatory EMI.

The down payment question

Most buyers treat the down payment as whatever they have saved right now. That's backwards. The right approach is to determine the loan amount you can sustainably afford first, then calculate the down payment as the gap between that loan amount and the property price.

A larger down payment is almost always better:

If you haven't saved enough for a 20% down payment, consider delaying the purchase rather than borrowing the down payment or taking a top-up loan. Borrowing your down payment is a fast track to over-leverage.

A practical affordability test

Before committing to a loan, run this sanity check:

  1. Calculate take-home pay after all existing EMIs, PF deductions, and professional tax
  2. Subtract 30% of take-home for non-negotiables: groceries, utilities, school fees, existing loans
  3. Subtract 15-20% of take-home for investments: SIPs, insurance premiums, retirement contributions
  4. Subtract an emergency margin of ₹5,000-10,000/month
  5. What remains is your maximum sustainable housing cost (EMI + maintenance)

If the resulting number supports a lower loan than you were planning, take the lower loan. Downsize the property or wait.

Home Loan EMI Calculator

How much will this home loan really cost — EMI, total interest, and whether a shorter tenure saves you more than a lower rate?

Try with your numbers

When to stretch slightly beyond comfort

There are cases where buying slightly more than your "comfortable" number makes sense:

Even in these cases, the stretch should be modest — no more than 5-7% above your comfortable EMI ceiling. Financial flexibility is worth more than optimising for a slightly larger flat.