Home Loan & Mortgage Affordability Tool

Currency

Gross Annual Income

Monthly Debt Payments (loans, credit cards)

Down Payment Available

Annual Interest Rate (%)

Loan Tenure (Years)

DTI Limit (%) — max debt-to-income (recommended 36-43%)

About the Mortgage Affordability Calculator

The Mortgage Affordability Calculator helps you determine the maximum home price you can comfortably buy based on your income, existing debts, down payment, interest rate, and loan tenure. It uses the standard debt-to-income (DTI) limit to compute the largest monthly EMI you can sustain, then back-calculates the maximum loan amount and home price accordingly. First-time home buyers and anyone looking to refinance or upgrade their home will find this tool essential for setting a realistic property budget.

How to Use

Enter your Gross Annual Income and any existing monthly debt payments (car loan, credit cards).
Specify your available Down Payment and the expected Annual Interest Rate.
Set the Loan Tenure in years and adjust the DTI Limit (36–43% is recommended).
Click Calculate Affordability to see your maximum home price, EMI, and total interest cost.

Formula / Methodology

EMI = P × [r(1+r)^n] ÷ [(1+r)^n − 1]

Where:
  P = Loan Principal
  r = Monthly interest rate (Annual Rate ÷ 12 ÷ 100)
  n = Loan tenure in months

Max Home Price = Max Loan Amount + Down Payment
LTV Ratio = Loan Amount ÷ Home Price × 100
DTI Ratio = Total Monthly Debt ÷ Monthly Income × 100

Amortization means each EMI pays a shrinking share of interest and a growing share of principal over time. Early in the loan, most of your payment is interest; by the end, most is principal repayment.

Understanding Your Results

Monthly EMI Your fixed monthly mortgage payment covering both principal and interest. This should ideally stay within 28–30% of your gross monthly income for a comfortable financial position.

Total Interest Paid The cumulative interest cost over the full loan tenure. Even a 0.5% reduction in interest rate or a few extra EMIs paid early can save a significant amount — consider prepayment whenever possible.

DTI Ratio Debt-to-Income ratio is the key metric lenders use to assess loan eligibility. A DTI below 36% is excellent; most lenders cap approval at 43–50%. Keeping DTI low improves your loan terms and financial safety.

Important Note

The calculated home price covers the loan EMI only. Remember to budget for additional homeownership costs such as property tax, home insurance, maintenance, and society charges, which can add 1–3% of the property value per year. Always keep a financial buffer and avoid stretching your DTI to the maximum limit.

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