How Much House Can I Afford? (With Real Examples by Income)
There are two different answers to «how much house can I afford.» The first is what a lender will approve you for. The second is what you can actually afford without sacrificing your financial health. Those numbers are often different — and the gap between them is where buyers get into trouble.
This guide focuses on the second number: the one that lets you sleep at night.
The 28/36 Rule: Where to Start
The most widely used affordability benchmark in mortgage lending is the 28/36 rule:
- 28%: Your total housing payment (PITI — principal, interest, taxes, insurance) should not exceed 28% of your gross monthly income
- 36%: Your total monthly debt obligations (housing + all other debts) should not exceed 36% of your gross monthly income
These are guidelines, not laws. Lenders regularly approve loans above these thresholds — up to 43% DTI for conventional loans, and sometimes 50% with compensating factors. But the 28/36 rule reflects a reasonable balance between housing and financial flexibility.
A simple example:
Household gross income: $8,000/month
- Max housing payment (28%): $2,240/month
- Max total debt (36%): $2,880/month
- Room for non-housing debt: $2,880 – $2,240 = $640/month
If you have a $400 car payment and $200 in student loan minimums ($600 total), you’re close to the 36% ceiling before adding any housing payment. This is why existing debt matters so much in mortgage qualification.
From Payment to Purchase Price
Working backward from a maximum monthly payment to a home price requires estimating all four PITI components — not just the loan payment.
At 6.75% on a 30-year fixed loan, using national averages for taxes and insurance:
| Max Monthly PITI | Est. Loan Amount | Est. Home Price (10% down) |
|---|---|---|
| $1,500 | ~$185,000 | ~$205,000 |
| $2,000 | ~$250,000 | ~$278,000 |
| $2,500 | ~$315,000 | ~$350,000 |
| $3,000 | ~$375,000 | ~$417,000 |
| $3,500 | ~$440,000 | ~$488,000 |
| $4,000 | ~$505,000 | ~$561,000 |
Estimates assume ~$400/month for taxes + insurance on a mid-range home. Actual numbers vary significantly by location.
These are rough starting points. Your local property tax rate can shift these numbers by hundreds of dollars per month.
Affordability by Income Level: Real Scenarios
Household income: $60,000/year ($5,000/month)
- Max housing at 28%: $1,400/month
- Estimated home price (10% down, 6.75%): ~$165,000–$180,000
- Reality check: At this income, affording a median-priced home in most major US metros is extremely difficult. First-time homebuyer programs with down payment assistance and below-market rate loans become essential. Markets in the Midwest, South, and rural areas offer more options.
Household income: $80,000/year ($6,667/month)
- Max housing at 28%: $1,867/month
- Estimated home price (10% down, 6.75%): ~$220,000–$240,000
- Reality check: Workable in secondary markets. Tight in coastal cities. Down payment assistance programs can expand this range meaningfully.
Household income: $100,000/year ($8,333/month)
- Max housing at 28%: $2,333/month
- Estimated home price (10% down, 6.75%): ~$275,000–$300,000
- Reality check: Functional in most non-coastal markets. Some first-time buyer programs at this income level begin to phase out.
Household income: $150,000/year ($12,500/month)
- Max housing at 28%: $3,500/month
- Estimated home price (10% down, 6.75%): ~$415,000–$450,000
- Reality check: Competitive purchasing power in most US markets. Manageable in many coastal markets.
Household income: $200,000/year ($16,667/month)
- Max housing at 28%: $4,667/month
- Estimated home price (20% down, 6.75%): ~$600,000–$650,000
- Reality check: Strong position in most markets. Approaching jumbo loan territory in some scenarios.
What Lenders Will Approve vs. What You Should Buy
Lenders use DTI thresholds to set their maximum approval amount — not to optimize your financial wellbeing. A conventional lender may approve you at 45% DTI. That means 45 cents of every dollar you earn before taxes goes to debt payments. After taxes, you’re likely spending 55–60% of your take-home pay on debt.
That leaves very little for:
- Retirement savings
- Emergency fund
- Children’s education
- Travel and lifestyle
- Home maintenance and repairs
- Job loss buffer
The practical rule many financial advisors use: Don’t stretch past 25% of your net (take-home) income for housing costs. The lender looks at gross income; your budget runs on net income.
A household earning $120,000/year takes home roughly $85,000–$90,000 after federal and state taxes (varies by state). Twenty-five percent of $88,000 net = $1,833/month in housing costs — significantly more conservative than the 28% of gross ($2,800) that lenders allow.
The difference between these two approaches — $967/month — is meaningful. It’s the difference between a comfortable financial life and one where you’re perpetually house-poor.
The Hidden Costs Buyers Underestimate
Most affordability calculations focus on PITI. Real homeownership costs include:
Home maintenance and repairs: Budget 1%–2% of home value per year. On a $350,000 home, that’s $3,500–$7,000 annually. Costs are lumpy — you may spend nothing for 3 years, then replace a roof ($10,000–$20,000) or HVAC system ($5,000–$12,000).
HOA fees: In communities with homeowners associations, monthly dues typically run $100–$600. Not included in PITI. Not optional.
Utilities: A larger home costs more to heat, cool, and power. Moving from a 900 sq ft apartment to a 2,400 sq ft house can increase monthly utility bills by $200–$500.
Property improvements: Most buyers want to make changes — paint, landscaping, appliances, flooring. Budget $5,000–$15,000 for the first year, especially in older homes.
Moving costs: $1,000–$5,000 depending on distance and volume.
A realistic first-year homeownership budget adds $500–$1,500/month to the PITI figure, depending on home age and condition.
Down Payment’s Effect on Affordability
Your down payment directly affects your monthly payment in two ways: it reduces the loan amount, and it affects whether you pay PMI.
Same $400,000 home at 6.75%, different down payments:
| Down Payment | Loan Amount | Monthly P&I | PMI | Approx. PITI |
|---|---|---|---|---|
| 3% ($12,000) | $388,000 | $2,516 | ~$290 | ~$3,556 |
| 5% ($20,000) | $380,000 | $2,464 | ~$250 | ~$3,464 |
| 10% ($40,000) | $360,000 | $2,334 | ~$150 | ~$3,234 |
| 20% ($80,000) | $320,000 | $2,075 | $0 | ~$2,825 |
PITI estimate includes ~$750/month for taxes and insurance.
The difference between 3% and 20% down is $731/month in total payment — and 20% down eliminates PMI entirely. This illustrates why down payment size is one of the most impactful levers in affordability.
How to Improve Your Affordability
Pay down existing debt. Every dollar of monthly debt you eliminate increases your DTI headroom for housing. Paying off a $400/month car loan increases your qualifying home price by roughly $50,000–$60,000 at standard rates.
Improve your credit score. A higher credit score gets you a lower rate. The difference between a 680 and 760 credit score can be 0.5%–0.75% in rate — on a $350,000 loan, that’s $120–$180/month in payment.
Increase your down payment. More down = lower loan = lower payment = less or no PMI. Even moving from 5% to 10% creates meaningful payment relief.
Buy in a lower-tax area. Property taxes are fixed and permanent. Buying a comparable home in a county with 1.0% tax rates versus 2.0% saves $250/month on a $300,000 home — forever.
Consider a longer search. In most markets, home prices vary significantly by neighborhood, school district, and micromarket. A $50,000 price reduction on a comparable home is worth far more to your long-term finances than stretching to an aspirational address.
Frequently Asked Questions
Does the 28% rule apply to gross or net income? Lenders use gross income (before taxes). For your own planning, applying 28% to your net (take-home) income gives a more conservative and livable number.
Should I buy as much home as the lender approves? Almost never. Lenders approve the maximum they believe the risk parameters allow — not what’s optimal for your lifestyle, savings, or financial resilience. The approval ceiling is not a recommendation.
What if I have significant savings but modest income? A large savings cushion is a compensating factor in underwriting (lenders may allow higher DTI for borrowers with substantial reserves) but doesn’t change your monthly cash flow constraint. High assets with modest income still means a stretched monthly budget.
How does a two-income household affect affordability? Lenders use combined gross income for joint applications. This significantly expands purchasing power. The risk: if one income disappears (job loss, career break, disability), you need to verify you can manage the payment on a single income — at least temporarily.
The Bottom Line
What you can afford is not what a lender will approve you for. It’s the number that lets you fund your retirement, maintain an emergency fund, handle a major repair without panic, and still enjoy your life.
Use the 28% rule as a ceiling, not a target. Calculate your full PITI including taxes and insurance for your specific location. Add $300–$600/month for maintenance, utilities, and the unexpected. Then make the decision from that honest starting point.
Next step: Ready to run your real numbers? Use our Home Affordability Calculator — enter your income, debts, and down payment to get your personal home buying budget.
Sources
- Consumer Financial Protection Bureau (CFPB): How much can I afford? — consumerfinance.gov
- Fannie Mae: debt-to-income ratios — fanniemae.com
- National Association of Realtors: Home Affordability Index — nar.realtor
Disclaimer: The information on this page is for educational purposes only and does not constitute financial or legal advice. Affordability calculations vary by location, lender, and individual financial situation. Consult a licensed mortgage professional before making purchasing decisions. HomeFinanceLab.com is not a lender and does not originate loans.
