How Much House Can I Afford? (Income-Based Guide)
For informational purposes only, not financial advice. Full disclaimer
Banks will approve you for more house than you can comfortably afford. The key word is "comfortably." Just because a lender says you qualify for a $450,000 mortgage doesn't mean your budget agrees. This guide walks through proven rules and real numbers to help you find the home price that fits your financial life — not just your approval letter.
I learned this lesson the hard way during my first real estate purchase. The bank approved me for far more than I should have taken on, and it took years to understand that a lender's ceiling is not the same as a comfortable budget. The gap between "qualified" and "affordable" is where financial stress lives.
Alex B.
The 28/36 Rule
The most widely used guideline for housing affordability: spend no more than 28% of your gross monthly income on housing costs (mortgage, taxes, insurance, HOA) and no more than 36% on all debt payments combined (housing plus car loans, student loans, credit cards).
Example Calculation
Your household gross income is $85,000/year ($7,083/month). You have a $350/month car payment and $200/month student loan.
- 28% of $7,083 = $1,983 maximum housing payment
- 36% of $7,083 = $2,550 maximum total debt
- Existing debt: $350 + $200 = $550/month
- Available for housing: $2,550 - $550 = $2,000/month (limited by 36% rule)
- At 6.5% rate, 30-year term, with taxes and insurance, this supports about a $310,000 home with 10% down.
On $85,000/year income with $550 in existing debt, you can comfortably afford a home priced around $300,000-$315,000.
Enter your income, down payment, and desired interest rate to see the maximum home price that fits your budget. Our calculator includes taxes and insurance estimates.
Try Mortgage CalculatorQuick Affordability by Income
These estimates assume 10% down, 6.5% rate, 30-year term, $550/month in existing debt, and 1.5% for taxes/insurance:
- $50,000 income → ~$190,000 home
- $75,000 income → ~$290,000 home
- $100,000 income → ~$390,000 home
- $125,000 income → ~$490,000 home
- $150,000 income → ~$585,000 home
What Lenders Actually Look At
Lenders use their own version of the 28/36 rule called "qualifying ratios." FHA loans allow up to 31/43 (more lenient). Conventional loans typically use 28/36 but can stretch to 45% back-end with strong credit. VA loans have no front-end ratio and allow up to 41% back-end. Higher ratios mean more house, but also more financial stress.
The Down Payment Factor
Your down payment directly affects how much home you can afford and your monthly costs. 20% down eliminates private mortgage insurance (PMI), saving $100-300/month. 10% down requires PMI but keeps more cash available. 3-5% down (FHA/conventional) makes buying accessible but increases monthly costs by $150-400 in PMI.
Hidden Costs Most Buyers Forget
- Property taxes: 0.5-2.5% of home value per year ($1,500-$7,500 on a $300,000 home)
- Homeowners insurance: $1,200-$3,000/year
- PMI: 0.5-1% of loan amount per year if less than 20% down
- Maintenance: Budget 1-2% of home value per year ($3,000-$6,000)
- HOA fees: $200-$600/month in some communities
- Closing costs: 2-5% of purchase price upfront ($6,000-$15,000)
- Moving and furniture: $5,000-$15,000
Being approved for a $400,000 mortgage doesn't mean you should use it all. Lenders want you to repay the loan — they don't care if you can't afford vacations, retirement savings, or emergencies. Target 20-25% of take-home pay for housing, not the maximum a lender will give you.
A More Conservative Approach
The 28/36 rule uses gross income, but you don't take home your gross. A more conservative approach: keep total housing costs under 25% of take-home pay. On $85,000 gross (~$5,500 take-home), that's $1,375/month for housing — supporting roughly a $220,000 home. Tighter, but you'll have money for everything else life throws at you.
After I lost everything in a business downturn and had to rebuild from zero, I became obsessed with keeping housing costs low. During that period, I kept my housing under 20% of take-home pay. It felt restrictive, but it gave me the breathing room to invest in my next venture and recover faster than I thought possible.
Alex B.
Before You Buy: Financial Checklist
- Emergency fund of 3-6 months expenses (separate from down payment)
- No high-interest debt (credit cards paid off)
- Stable employment for at least 2 years
- Credit score above 680 (ideally 740+ for best rates)
- Down payment saved (ideally 20%, minimum 3-5%)
- Budget for closing costs (2-5% of home price)
- Plan to stay in the area at least 5 years
Bottom Line
The right home price is one where your total housing payment (including taxes, insurance, and maintenance) leaves room for saving, investing, and living. Use the 28/36 rule as a starting point, but consider your actual take-home pay and lifestyle expenses before committing. It's better to buy slightly less house and live comfortably than to stretch and become "house poor."
Frequently Asked Questions
How much house can I afford on a $75,000 salary?+
What is the 28/36 rule for buying a house?+
How much should I have saved before buying a house?+
Is it better to buy a cheaper house or wait and save more?+
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Disclaimer: This article is for informational purposes only and does not constitute financial advice. Consult a qualified financial advisor for decisions about your specific situation.