Mortgage Affordability Calculator – How Much House Can I Afford?
Estimate how much home you may be able to afford based on your household income, monthly debts, down payment, interest rate and loan term. Adjust the values below to compare different home-buying scenarios.
Mortgage Affordability Calculator
Enter your financial details below. The calculator uses an estimated housing-to-income limit to provide a planning estimate.
Your Estimated Affordability
This is a planning estimate, not a loan approval. Property taxes, insurance, mortgage insurance, service charges, HOA fees and other housing costs are not included unless separately considered by you.
What Is Mortgage Affordability?
Mortgage affordability is an estimate of how much you may be able to spend on a home while keeping the expected mortgage payment within a manageable portion of your income.
Your income is only one part of the calculation. Existing debts, down payment, interest rate and loan term can substantially change the amount of mortgage you may be able to support.
How Does This Mortgage Affordability Calculator Work?
The calculator first converts your annual household income into gross monthly income. It then applies the housing-budget percentage you enter and subtracts your existing monthly debt payments.
The remaining monthly amount is used to estimate a mortgage principal based on the selected interest rate and loan term. Your down payment is then added to the estimated mortgage amount to produce an estimated home price.
The calculation is designed for comparison and planning. Actual lender affordability assessments may use different debt-to-income limits, stress-test rates, minimum living expenses, taxes and other criteria.
What Affects How Much House You Can Afford?
Household Income
Higher stable income can generally support a larger monthly housing payment, assuming your other financial commitments remain manageable.
Existing Monthly Debts
Car loans, personal loans, credit commitments and other recurring debt payments reduce the amount of income available for a mortgage.
Down Payment
A larger down payment can increase the home price you can purchase without increasing the mortgage principal by the same amount.
Mortgage Interest Rate
Higher interest rates generally increase the monthly payment required for the same loan amount. If your monthly budget stays unchanged, a higher rate can reduce the mortgage amount you may be able to afford.
Loan Term
A longer loan term can reduce the monthly principal-and-interest payment, but it may also increase the total interest paid over the life of the loan.
Mortgage Affordability vs Borrowing Power
Mortgage affordability focuses on the home price and mortgage payment that may fit within your budget. Borrowing power focuses on the amount of debt your financial position may be able to support.
For a detailed explanation, read our Borrowing Power Calculator guide .
Mortgage Affordability vs Loan Eligibility
An affordability estimate does not guarantee that you qualify for a particular loan. Lenders may consider income verification, existing obligations, credit history, property information and their own underwriting requirements.
You can also use our Loan Eligibility Calculator for another planning estimate.
Useful Home Loan Tools & Guides
- Mortgage Calculator – estimate monthly mortgage payments.
- Loan Eligibility Calculator – estimate potential loan eligibility.
- EMI Calculator – estimate monthly loan instalments.
- Home Loan vs Rent Calculator – compare buying and renting considerations.
Frequently Asked Questions
How much house can I afford?
It depends on your income, debts, down payment, interest rate, loan term and other housing expenses. Use the calculator above to compare different scenarios rather than relying on one universal income multiple.
Does a bigger down payment increase affordability?
A larger down payment can increase the home price you can purchase for the same mortgage amount. It may also affect other borrowing costs, depending on the lender and country.
Why does a higher interest rate reduce affordability?
A higher rate means more of each monthly payment is required to cover interest. With the same monthly payment budget, this generally supports a smaller loan principal.
Is this calculator a mortgage pre-approval?
No. It provides an estimate for educational and planning purposes. A lender must assess your application before providing an approval or lending decision.
Are property taxes and insurance included?
No. This simplified calculator estimates principal-and-interest affordability. Taxes, insurance, mortgage insurance, HOA or service charges and other housing costs can reduce the amount you can comfortably afford.
Plan With a Comfortable Budget
The maximum amount you might qualify to borrow does not necessarily need to become your home-buying budget. Leaving room for maintenance, emergencies and changes in income or interest rates can make home ownership easier to manage.
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