Home Affordability Calculator
Find out how much house you can afford based on your income, monthly debts, and down payment.
Maximum Home Price
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Based on your income & debts
Monthly Budget Breakdown
Estimated Monthly Payment
Loan Details
💡 DTI Ratio Guide (USA)
🏠 Affordability Range
Quick Answer
With an annual income of $80,000, monthly debts of $500, and a $40,000 down payment, the estimated maximum home price you can afford is approximately $310,000 based on a 36% debt-to-income ratio at 7% interest over 30 years. Adjust the calculator above with your own income and debts for a personalized estimate.
What is a Home Affordability Calculator?
A home affordability calculator estimates the maximum home price you can comfortably afford based on your income, existing monthly debts, down payment, and current mortgage rates. Lenders use similar debt-to-income (DTI) calculations to determine how much they are willing to lend, so this tool helps you understand your budget before you start house hunting.
How to Use the Home Affordability Calculator Step by Step
- Enter your annual household income — combined gross income before taxes for all borrowers on the loan.
- Enter your monthly debt payments — car loans, student loans, credit card minimums, and other recurring debts.
- Enter your down payment — the amount you have saved to put toward the home purchase.
- Select your interest rate and loan term — use current market rates for accurate results.
- Choose your DTI ratio limit — 28% conservative, 36% standard, or 43% FHA maximum.
- Review your results — see your maximum home price, monthly budget breakdown, and affordability range across different DTI levels.
The 28/36 Rule Explained for 2026
The 28/36 rule is the industry standard used by most lenders in the USA to determine home affordability. It states that your monthly housing costs should not exceed 28% of your gross monthly income, and your total debt payments, including housing, should not exceed 36% of gross income.
| DTI Ratio | Classification | Typical Loan Type |
|---|---|---|
| Below 28% | Excellent — easy approval | Any loan type |
| 28% – 36% | Good — standard approval | Conventional |
| 36% – 43% | Fair — FHA may approve | FHA |
| Above 43% | High — hard to qualify | Compensating factors needed |
Figures are general guidelines used across the USA lending market as of 2026 and may vary by lender and loan program.
Factors That Determine How Much House You Can Afford
- Gross Annual Income: The primary factor lenders use to calculate your maximum loan amount.
- Existing Monthly Debts: Car payments, student loans, and credit cards reduce how much housing payment you can add.
- Down Payment: A larger down payment reduces your loan amount and monthly payment, increasing affordability.
- Interest Rate: Even a 0.5% rate difference can change your maximum home price by tens of thousands of dollars.
- Credit Score: Higher scores unlock better rates and higher DTI allowances from lenders.
- Property Tax and Insurance: These vary significantly by location and are factored into your total monthly housing cost.
Home Affordability Calculator FAQs
How much house can I afford based on my salary?
A common guideline is that your home price should be 3 to 5 times your gross annual income. For example, if you earn $80,000 per year, you can typically afford a home priced between $240,000 and $400,000, depending on your debts, down payment, and current interest rates.
What DTI ratio do FHA loans allow?
FHA loans typically allow a DTI ratio up to 43%, and sometimes up to 50% with compensating factors such as significant cash reserves, a strong credit score, or minimal payment shock from your current rent. This makes FHA loans more accessible for buyers with higher existing debt.
Does my credit score affect how much house I can afford?
Yes, a higher credit score typically qualifies you for lower interest rates, which increases your purchasing power. It can also allow lenders to approve higher DTI ratios, since a strong credit history signals lower risk of default.
Should I use the conservative or maximum affordability estimate?
Most financial advisors recommend using the conservative 28% DTI estimate rather than the maximum 43% figure. Buying below your maximum approved amount leaves room in your budget for savings, emergencies, and lifestyle expenses beyond just housing costs.
Tips to Afford More Home
- Pay down existing debts: Reducing car loans or credit card balances directly lowers your DTI ratio and increases affordability.
- Increase your down payment: Saving for a larger down payment reduces your loan amount and monthly payment.
- Improve your credit score: Even a 20-30 point improvement can unlock a meaningfully lower interest rate.
- Consider a longer loan term: A 30-year term lowers monthly payments compared to 15-year, increasing your maximum affordable price.
- Add a co-borrower: Combining income with a spouse or co-signer can significantly increase your affordability.
Conservative vs Standard vs Maximum Affordability
| 28% DTI | 36% DTI | 43% DTI | |
|---|---|---|---|
| Risk Level | Low | Moderate | Higher |
| Budget Flexibility | High | Moderate | Tight |
| Recommended For | First-time buyers | Most buyers | Strong reserves only |
Disclaimer: This calculator provides estimates only and does not constitute financial or lending advice. Actual approval amounts depend on lender criteria, credit history, and full underwriting review. Consult a licensed mortgage professional for personalized guidance.