Benefits of Using This Home Affordability Calculator
Instant budget clarity – Know your price range before talking to a realtor
Avoids rejection – Shop within what lenders will actually approve
Tests multiple scenarios – Adjust down payment, income, or debts instantly
Uses standard lending rules – Based on the 28/36 debt-to-income guidelines
Free and private – No personal data leaves your browser
Works on any device – Desktop, tablet, or mobile
Saves hours of manual math – No spreadsheets or complex formulas needed
Helps with down payment planning – See how saving more increases your budget
FAQs
1. What is the 28/36 rule for home affordability?
The 28/36 rule is a lender guideline. Your monthly housing payment should not exceed 28% of your gross monthly income, and your total monthly debts (including the mortgage) should not exceed 36% of your gross monthly income.
2. How does my down payment affect affordability?
A larger down payment reduces your loan amount, which lowers your monthly payment. This allows you to qualify for a higher-priced home or keeps your payment within the 28% guideline.
3. What debts count toward the 36% rule?
Lenders include car loans, student loans, credit card minimum payments, personal loans, child support, alimony, and any other recurring monthly debt obligations. Utilities, insurance, and groceries are not included.
4. Does my credit score affect how much I can afford?
Yes. A higher credit score typically qualifies you for a lower interest rate, which reduces your monthly payment and increases your affordable home price. This calculator uses the interest rate you provide.
5. What is a good debt-to-income (DTI) ratio for a mortgage?
Most conventional loans require a DTI below 43%, but a DTI of 36% or lower is considered excellent. FHA loans may allow DTI up to 50% with strong compensating factors.
6. Can I afford a home if I have student loans?
Yes, but student loan payments count toward your monthly debts. Lenders use either your actual monthly payment or 0.5% to 1% of the total loan balance if no payment is due.
7. How accurate is this home affordability calculator?
It is mathematically precise based on standard lending formulas and the 28/36 rule. However, actual loan approval depends on credit score, employment history, property taxes, insurance, and lender-specific overlays.
8. Does this calculator include property taxes and insurance?
This version focuses on principal and interest. For a complete estimate, add estimated property taxes (typically 1–2% of home value annually) and homeowners insurance to your monthly payment.