Calculate Mortgage Payment
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Loan Amount
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Total Interest
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Total Cost
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Understanding Mortgages
A mortgage is a loan used to purchase a home, where the property serves as collateral. Monthly payments include principal, interest, property taxes, and insurance (often called PITI).
Mortgage Payment Formula
M = P × [r(1+r)n] / [(1+r)n − 1]
- M = Monthly payment (principal + interest)
- P = Loan amount (home price minus down payment)
- r = Monthly interest rate
- n = Total number of payments
15-Year vs 20-Year Mortgage
A ₹30,00,000 mortgage at 8.5%: Over 20 years, monthly EMI is ₹26,035 with ₹32,48,400 total interest. Over 15 years, EMI is ₹29,542 but total interest is only ₹23,17,560—saving ₹9,30,840.
The 28/36 Rule
Lenders use this guideline: housing costs should be under 28% of gross monthly income, and total debt under 36%. With ₹1,00,000/month income, aim for mortgage EMI under ₹28,000.
Down Payment Impact
- 20% down: The minimum for most homes above about ₹37.5 lakh, because RBI caps the loan at 80% of the property value for loans of ₹30–75 lakh (75% above ₹75 lakh). Lower EMI and less interest.
- 10% down: Only possible when the loan is ₹30 lakh or less (90% cap), so mainly for homes up to about ₹33 lakh. Higher loan amount and EMI.
- Under 10% down: Not possible with a bank or housing finance company loan. PMAY gives eligible first-time buyers an interest subsidy, not a smaller down payment.
How to Save on Your Mortgage
- Improve credit score: A CIBIL score of 750+ gets the best rates—even 0.25% saves tens of thousands.
- Make extra payments: One extra EMI per year can take about 7 years off a 30-year loan at 8.5%.
- Refinance when rates drop: If rates fall 1%+, refinancing can save significantly.
- Question bundled loan insurance: Indian home loans have no US-style PMI. A home loan protection policy is optional, and a term plan covering the loan often costs less.
Real-World Mortgage Scenarios
Scenario 1: First-Time Buyer — Starter Home
Ankit (28, income ₹80,000/month) buys a ₹35,00,000 flat with 20% down payment (₹7,00,000). Loan: ₹28,00,000 at 8.5% for 20 years. Monthly EMI: ₹24,299. Total interest: ₹30,31,772. EMI is 30% of income — slightly above the 28% housing guideline of the 28/36 rule. He'll pay ₹58,31,772 over 20 years for a ₹35L home.
Scenario 2: Premium Home with Higher Down Payment
Priya and Vikram (combined income ₹2,50,000/month) buy a ₹1.2 Cr home with 30% down (₹36,00,000). Loan: ₹84,00,000 at 8.25% for 20 years. EMI: ₹71,574. Total interest: ₹87,77,644. By putting 30% down instead of 20%, they save about ₹12,54,000 in total interest.
Scenario 3: 15-Year vs 20-Year Comparison
Same ₹50,00,000 loan at 8.5%:
- 20-year term: EMI ₹43,391 | Total interest ₹54,13,840
- 15-year term: EMI ₹49,236 | Total interest ₹38,62,480
- Savings: ₹5,845 higher EMI but ₹15,51,360 less in total interest
If you can afford the extra ₹5,845/month, the 15-year option saves you over ₹15.5 lakh.
Scenario 4: Impact of 1% Rate Difference
On a ₹50,00,000 loan for 20 years:
- At 8.0%: EMI ₹41,822 | Total interest ₹50,37,280
- At 9.0%: EMI ₹44,986 | Total interest ₹57,96,640
- 1% higher rate costs ₹7,59,360 extra over 20 years
Down Payment: How Much Should You Save?
The down payment is the most important decision in your mortgage journey. Here's how different down payment percentages affect your loan on a ₹60,00,000 home at 8.5% for 20 years:
| Down Payment | Amount | Loan Amount | Monthly EMI | Total Interest | Within RBI LTV Limit? |
|---|---|---|---|---|---|
| 10% | ₹6,00,000 | ₹54,00,000 | ₹46,862 | ₹58,46,880 | No (90% LTV) |
| 15% | ₹9,00,000 | ₹51,00,000 | ₹44,258 | ₹55,21,920 | No (85% LTV) |
| 20% | ₹12,00,000 | ₹48,00,000 | ₹41,654 | ₹51,96,960 | Yes |
| 25% | ₹15,00,000 | ₹45,00,000 | ₹39,052 | ₹48,72,480 | Yes |
| 30% | ₹18,00,000 | ₹42,00,000 | ₹36,448 | ₹45,47,520 | Yes |
Moving from 10% to 20% down payment saves ₹6,49,920 in interest. For a ₹60 lakh home, 20% is also the minimum: RBI caps the loan-to-value ratio at 80% for loans between ₹30 lakh and ₹75 lakh.
Complete Home Buying Costs Checklist
The purchase price is just the beginning. Here are all costs to budget for:
Upfront Costs
- Down payment: 10-30% of property value
- Stamp duty: 5-7% of property value (varies by state in India)
- Registration charges: 1% of property value
- Loan processing fee: 0.25-1% of loan amount
- Legal verification: ₹5,000-15,000 for property title search
- Home inspection: ₹3,000-10,000
- GST (under-construction): 5% for units under ₹45L, 1% for affordable housing
Recurring Costs
- EMI: Principal + interest (the largest recurring cost)
- Property tax: 0.5-2% of property value annually
- Home insurance: ₹5,000-25,000/year based on property value
- Maintenance / Society charges: ₹3,000-15,000/month for apartments
- Home maintenance reserve: Budget 1% of home value/year for repairs
For a ₹60L property, total upfront costs (including down payment) can range from ₹18-25 lakh. Plan accordingly.
When and How to Refinance Your Mortgage
Refinancing means replacing your current home loan with a new one (usually at a lower rate). Here's when it makes sense:
Refinance If:
- Rate difference is 0.5%+ with 10+ years remaining: On a ₹40L loan, 0.5% lower saves ₹3-4 lakh over the remaining term.
- Your credit score has improved significantly: If your score went from 680 to 760 since you took the loan, you may qualify for much better rates.
- You want to switch from floating to fixed (or vice versa): If you expect rates to rise, locking in a fixed rate protects you.
Don't Refinance If:
- Remaining tenure is less than 5 years: Transfer costs may exceed savings.
- Transfer fees are too high: Account for processing fees (0.5-1%), legal fees, and any prepayment penalty on the old loan.
- You plan to sell the property soon: The savings won't be sufficient to justify the hassle and costs.
Balance Transfer Savings Example
₹35,00,000 outstanding at 9.5% with 15 years remaining. Transfer to 8.5%:
- Old EMI: ₹36,548 | New EMI: ₹34,466
- Monthly saving: ₹2,082 | Total saving over 15 years: ₹3,74,800
- Transfer costs: ~₹50,000 | Net saving: ₹3,24,800
10 Tips for a Better Mortgage Deal
- 1. Build your credit score to 750+ before applying: This single factor can save you 0.5-1.5% in interest rate, translating to lakhs over the loan life.
- 2. Save for at least 20% down payment: Reduces the loan amount and interest, and is required anyway for loans above ₹30 lakh (RBI’s 80% loan-to-value cap).
- 3. Get pre-approved before house hunting: Pre-approval gives you a clear budget, strengthens your offer, and speeds up the final approval process.
- 4. Compare offers from at least 3-4 lenders: Banks, housing finance companies, and NBFCs may offer different rates. Even 0.25% makes a big difference on large loans.
- 5. Negotiate processing fees: Most lenders will reduce or waive processing fees if pushed, especially during promotional periods.
- 6. Choose the shortest tenure you can comfortably afford: Every year shorter saves disproportionate interest. A 15-year loan pays nearly half the interest of a 30-year loan.
- 7. Make one extra EMI payment per year: Using your annual bonus for one extra payment can cut a 20-year loan by 3-4 years.
- 8. Understand fixed vs floating tradeoffs: Floating rates start lower but can increase. If you're risk-averse and rates are historically low, consider fixing for the initial years.
- 9. Factor in all costs, not just EMI: Property tax, insurance, maintenance, stamp duty, and registration can add 10-15% to the property cost.
- 10. Review your loan annually: Check if better rates are available. Balance transfer to a lower-rate lender if savings exceed transfer costs.
Tax Benefits on Home Loans (India)
Home loans offer significant tax deductions that can effectively reduce your EMI cost:
| Section | Deduction On | Max Limit | Conditions |
|---|---|---|---|
| 80C | Principal repayment | ₹1,50,000/yr | Self-occupied or let-out property |
| 24(b) | Interest payment | ₹2,00,000/yr | Self-occupied; unlimited for let-out |
| 80EEA | Additional interest | ₹1,50,000/yr | First home, stamp value up to ₹45L, loan sanctioned Apr 2019–Mar 2022 |
These deductions are available only under the old tax regime. For a borrower in the 30% slab claiming ₹1.5L under 80C and ₹2L under 24(b), the annual tax saving is about ₹1,09,200 including cess (about ₹9,100/month). This effectively reduces the EMI burden by that amount.
Common Mortgage Mistakes to Avoid
- Buying at the top of your budget: Just because you qualify for a ₹80L loan doesn't mean you should take it. Leave room for emergencies, lifestyle expenses, and other financial goals. Your EMI should not suffocate your monthly budget.
- Skipping the pre-approval step: Without pre-approval, you may fall in love with a property you can't afford, or lose out to a pre-approved buyer who can close faster.
- Ignoring total cost of ownership: The EMI is just one part. Property tax, maintenance, insurance, society charges, and a 1% annual maintenance reserve can add ₹8,000-20,000/month to your housing cost.
- Choosing the longest possible tenure to minimize EMI: A 30-year tenure gives the lowest EMI but you pay 2-3x in total interest compared to 15 years. Always favor the shortest affordable tenure.
- Not budgeting for stamp duty and registration: These costs (5-8% of property value) are due upfront and often catch first-time buyers off guard.
- Draining emergency fund for down payment: Maintain 6+ months of expenses as emergency fund even after the down payment. The last thing you want is to miss EMIs because you had an unexpected expense right after buying.
Related Calculators
More tools for home buying and loan planning:
Frequently Asked Questions
Use the 28/36 rule: housing costs under 28% of gross income, total debt under 36%. Factor in property taxes, insurance, HOA fees, and maintenance (1% of home value/year) beyond just the mortgage payment.
It's a breakdown of each payment showing how much goes to principal vs. interest. In the early years, most of your payment is interest. Over time, the principal portion increases. This is why extra payments early on have the biggest impact.
15-year: higher payments, much less interest, build equity faster. 30-year: lower payments, more flexibility, but significantly more interest over the life of the loan. If you can comfortably afford the 15-year payment, it saves dramatically.
No. Indian home loans have no US-style private mortgage insurance, whatever your down payment. Lenders often offer a home loan protection policy that repays the loan if the borrower dies; it is optional, and a term insurance plan covering the loan amount often costs less.
Fixed-rate locks in your rate for the entire term—predictable and safe. Adjustable-rate (ARM) starts lower but can increase after the initial period (e.g., 5/1 ARM). Choose fixed for long-term stability; ARM if you plan to sell or refinance within 5-7 years.
Consider refinancing when interest rates drop by 0.5%+ and you have 10+ years remaining. Calculate the break-even: if transfer costs (processing fee + legal) are recovered within 2-3 years of monthly savings, it's worth it. Also refinance if your credit score has dramatically improved since the original loan.
Extra payments go directly to principal, reducing the balance that accrues interest. Even one extra EMI per year on a 20-year loan can save 3-4 years of payments. The earlier you start making extra payments, the greater the impact. Under RBI rules, floating-rate home loans have zero prepayment penalty.
In India: principal repayment up to ₹1.5L under Section 80C, interest up to ₹2L under Section 24(b) for self-occupied property (unlimited for let-out). First-time buyers whose loan was sanctioned between April 2019 and March 2022 may get an additional ₹1.5L under 80EEA. These deductions apply only under the old tax regime; at the 30% slab they save up to about ₹1.1 lakh a year (about ₹1.56 lakh with 80EEA).
RBI caps home loans at 90% of the property value for loans up to ₹30 lakh, 80% for ₹30–75 lakh and 75% above ₹75 lakh, so you need at least 10–25% down, plus stamp duty and registration. Putting more down lowers your EMI and total interest. Under PMAY (Pradhan Mantri Awas Yojana), eligible first-time buyers of affordable housing can get interest subsidies.
Use the rent-to-EMI ratio. If monthly rent is close to or exceeds potential EMI, buying may make sense (you build equity instead of paying a landlord). However, factor in all ownership costs (maintenance, taxes, insurance) and your job stability. If you plan to stay less than 5 years, renting is usually cheaper after factoring in transaction costs.