Mortgage Affordability
Calculator

Find out how much home you can comfortably afford based on your income, monthly debts, and down payment — using standard lender guidelines.

Your Finances All figures are monthly unless noted
Income
$
$
Monthly Debts
$
$
$
$
Loan Details
$
%
yr
$
$
Maximum Home Price
Based on your income and DTI limit
Max Loan
Monthly PI
Total Monthly
Gross Monthly Inc.
Debt-to-Income Ratio
≤28% Excellent 29–36% Good >36% High
Affordability Range
Conservative (28% DTI)
Comfortable (36% DTI)
Maximum (43% DTI)
Getting Started

How to Use the Affordability Calculator

Determine how much house you can afford based on your income, debts, and spending preferences.

1

Enter Your Annual Income

Input your gross (pre-tax) annual household income. This is the primary factor lenders use to determine how much you can borrow.

2

Add Your Monthly Debts

Include all recurring debt payments — car loans, student loans, credit card minimums, and any other obligations. This helps calculate your debt-to-income ratio.

3

Set Loan Preferences

Choose your expected interest rate, loan term, and down payment percentage. These shape the size of the mortgage you can qualify for.

4

Include Taxes & Insurance

Add estimated property tax rate and annual insurance. These costs are included in lender affordability calculations and affect your maximum home price.

5

Review Your Affordability Range

See the maximum home price you can afford, your estimated monthly payment, and your DTI ratio. The results show conservative, moderate, and aggressive scenarios.

Understanding DTI

How Lenders Determine Affordability

Lenders use two key ratios: the front-end ratio (housing costs ÷ gross income) and the back-end ratio (all debts ÷ gross income). Most conventional loans require a back-end DTI under 43%.

Your credit score, employment history, and down payment also heavily influence how much you qualify for.

Front-End Ratio (Housing Ratio)

Total housing costs (PI+T+I+PMI) should be no more than 28% of gross monthly income.

Back-End Ratio (Total DTI)

All monthly debt payments including housing should be under 36–43% of gross income.

Improve Your Number

Pay down debts, save a larger down payment, or find a co-borrower to increase the price you qualify for.

Rule of Thumb

Many advisors suggest your home price should be 2.5–4× your annual gross income as a starting point.