Calculate Your Home Loan Affordability (India)

Beginner 20 min 4 steps

The problem

You're considering a home loan but don't know how much you can actually borrow, what the real monthly outgo will be, how much total interest you'll pay over 20 years, or whether the EMI comfortably fits your budget when stacked against all other obligations. This workflow answers all four questions before you visit a bank.

What You'll Need Before Starting

Required

Your current monthly net salary (take-home)

Banks use the 40% FOIR rule — your new EMI + existing EMIs must stay below 40-50% of net income

Approximate loan amount you're considering

Determines your monthly EMI and total interest paid over the tenure

Loan tenure in mind (15, 20, or 25 years)

Shorter tenure = higher EMI but much lower total interest; longer tenure = lower EMI but higher interest

Your existing loan EMIs (car, personal loan, credit card)

FOIR calculation includes all existing obligations — missing this overestimates your eligibility

Optional (Makes It Easier)

Current home loan interest rate from your bank

Rates change monthly (8-9% typical); using outdated rates makes EMI estimates inaccurate

Your CIBIL score (if available)

Credit score 750+ gets ~0.5-1% lower interest rates; below 650 may disqualify you

Details of all other monthly expenses

The final budget check needs full picture (rent, utilities, groceries, insurance) to verify comfort

What you'll accomplish

Your exact monthly EMI and whether it passes the 40% FOIR rule banks use
A year-by-year amortisation table showing interest vs principal breakdown
The compounding cost of delay and break-even analysis for partial prepayments
A full budget view confirming the EMI fits your monthly financial obligations

Tools in this workflow

Follow this workflow in sequence to move from question to decision without losing context.

Step-by-step

1

Calculate your monthly EMI and check against the 40% income rule

Enter your loan amount, interest rate, and tenure into the EMI Calculator to find your exact monthly outgo. Indian banks use the FOIR (Fixed Obligation to Income Ratio) rule — they typically approve loans only when your total monthly debt obligations (including the new EMI) stay under 40–50% of your net monthly income. At current SBI home loan rates of 8.5–9% per annum, a ₹50 lakh loan over 20 years generates an EMI of approximately ₹43,000–₹45,000 per month. Try multiple combinations of loan amount and tenure to find the EMI level that comfortably fits your income. Reducing tenure from 20 to 15 years increases EMI by roughly 20% but cuts total interest paid by nearly 35%.

Tip: Run the calculation at a rate 1–1.5% higher than the current rate to stress-test whether you can still afford the EMI if rates rise during the loan tenure.

2

Get the full amortisation schedule for your home loan

The Home Loan EMI Calculator goes beyond the monthly EMI figure — it generates a year-by-year amortisation table showing exactly how much of each payment goes toward principal repayment vs interest. In the early years of a home loan, up to 75–80% of each EMI is interest. By the midpoint, the ratio shifts. This schedule is essential for two decisions: (a) when to make a partial prepayment — prepayments made in the first 5–7 years of a 20-year loan save dramatically more interest than prepayments in the final years, and (b) how much interest you'll declare for Section 24 tax deduction (up to ₹2 lakh per year on self-occupied property). The schedule also shows your outstanding principal at any point — useful if you plan to switch lenders for a better rate mid-loan.

Tip: Section 80C allows deduction of up to ₹1.5 lakh per year on principal repayment. Section 24 allows up to ₹2 lakh deduction on interest for self-occupied property. Get your amortisation schedule ready before tax filing.

3

See how interest compounds and the cost of delay

Use the Compound Interest Calculator to model two scenarios: (a) how much your down payment grows if invested instead of used for the loan — this shows the opportunity cost of a larger down payment, and (b) how much interest accumulates on the loan over time if you delay taking it. For instance, if property prices are rising at 6% per year and your loan interest is 8.5%, the mathematics of waiting are often worse than acting — but the compounding calculator makes this concrete. Also model the impact of a partial prepayment: if you invest ₹5 lakh in a partial prepayment vs keeping it in a fixed deposit at 7%, the compounding calculator shows the exact break-even point. This step converts abstract 'should I prepay' intuitions into calculated decisions.

Tip: Home loan interest is calculated on a monthly reducing balance — the Compound Interest Calculator helps model this accurately when comparing against flat-rate FD returns.

4

Verify the EMI fits your monthly budget across all obligations

Use the Budget Planner to map your complete monthly financial picture: income, fixed expenses (rent/EMI, utilities, insurance, SIP contributions), variable expenses (groceries, fuel, dining, subscriptions), and the new home loan EMI. This is the final sanity check — many people calculate that they can afford an EMI in isolation but don't account for the full stack of monthly obligations. Add your home loan EMI to your existing commitments and see your monthly surplus. A healthy surplus after EMI should be at least 20–25% of net income for emergency fund contributions, unexpected medical expenses, and continued investments. If the surplus drops below 10%, reconsider the loan amount or tenure before committing.

Tip: Don't forget one-time home purchase costs: registration (5–7% of property value), stamp duty, interior setup, and parking — these can total ₹5–15 lakh and are often funded from the same down payment pool.

Why this workflow works

Most people approach home loans backwards — they look at a property price first, then work backwards to an EMI. This workflow starts from affordability: what EMI can you sustain, and what loan amount does that afford you at current rates? The amortisation step then reveals the true cost of the loan over time — the total interest paid on a 20-year loan often exceeds the original principal. The compound interest step connects loan mathematics to your broader financial decisions (prepay vs invest). The budget step is the final gate — many borrowers realise only after this step that their planned EMI leaves insufficient margin for other financial goals.

Frequently asked questions

How much home loan can I get on a ₹1 lakh monthly salary?

At ₹1 lakh net monthly salary with no existing EMIs, Indian banks typically approve a loan where the EMI is 40–50% of net income, i.e., ₹40,000–₹50,000 per month. At 8.75% p.a. for 20 years, a ₹40,000 EMI corresponds to approximately ₹45–47 lakh of loan amount. At ₹50,000 EMI, approximately ₹56–58 lakh. Your actual eligibility also depends on your CIBIL score (750+ for best rates), employment type (salaried vs self-employed), age, and existing obligations. Banks also apply a haircut — they typically lend up to 75–80% of the property value (LTV ratio), so a ₹60 lakh property allows a maximum loan of ₹45–48 lakh.

What is the difference between EMI and amortisation?

EMI (Equated Monthly Instalment) is the fixed monthly payment you make — the same rupee amount every month for the loan tenure. Amortisation is the underlying schedule showing how each EMI is split between principal repayment and interest. In the early months, most of the EMI is interest (because outstanding principal is highest). As principal reduces, interest charges fall and more of each EMI goes toward principal. The amortisation schedule shows this month-by-month or year-by-year breakdown, revealing your outstanding balance and total interest paid at any point.

Is a 20-year or 15-year tenure better for a home loan?

A shorter tenure means higher EMI but much lower total interest. Example: ₹50 lakh at 8.75% p.a. — 20-year tenure gives EMI ≈ ₹44,000 but total interest paid ≈ ₹55.6 lakh. 15-year tenure gives EMI ≈ ₹50,000 but total interest paid ≈ ₹39.8 lakh — saving nearly ₹16 lakh in interest for ₹6,000 more per month. The decision depends on your cash flow comfort. If you can manage a higher EMI, shorter tenure is mathematically superior. Alternatively, take a 20-year tenure for lower EMI but make regular partial prepayments — this effectively shortens the tenure while preserving flexibility.

What is FOIR and how do banks use it to approve home loans?

FOIR (Fixed Obligation to Income Ratio) is the ratio of your total fixed monthly obligations to your net monthly income. Fixed obligations include all existing loan EMIs (personal loan, car loan, credit card minimum payment) plus the new home loan EMI being applied for. Most banks cap FOIR at 40–50% for salaried employees and 40–45% for self-employed individuals. If your net income is ₹80,000 and you already pay ₹15,000 in a car loan EMI, your remaining eligibility is ₹40,000 × 80,000 - ₹15,000 = ₹17,000 for a new home loan EMI — significantly limiting your loan amount.

Should I prepay my home loan early or invest the surplus?

The mathematical answer depends on the comparison: if your home loan interest rate (say 8.75%) exceeds your post-tax investment returns, prepay. If your investments return more post-tax, invest. Equity mutual funds have historically returned 12–14% p.a. pre-tax over 10+ year periods, making investment mathematically superior to prepayment for most under 50 with long-term horizons. However, home loan interest is also tax-deductible under Section 24 (up to ₹2L), effectively reducing your net loan rate to ~6.5–7% for those in the 30% tax bracket. Personal risk tolerance matters too — being debt-free has psychological value that numbers don't capture.

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