Own Luxury Homes®
How Much House Can I Afford? Lender vs Your Number
How much house: 28% of gross income on housing (28/36 rule) vs lender max of 43–50% DTI. $100K income: 28% = $310K–$335K home; 43% = $480K–$510K approval. Calculators miss maintenance (1–2%/yr), utilities, PMI. Reserves: down + closing + 3–6mo housing. Own Luxury Homes® 12-Point Agent Integrity Audit™ — specialists who prioritize your financial health.
How Much House Can I Afford? The Lender Number vs Your Number
Every affordability calculator on Google is built by a lender or portal that earns when you take out a larger loan. They tell you the maximum you can qualify for. That is not the same as what you should spend. Being approved for more than your budget can handle is how buyers become house-poor — technically homeowners, but without the financial flexibility to handle repairs, save for retirement, or weather income disruption. This page separates the lender’s number from your number.
The Lender Number: What You Qualify For
Mortgage lenders approve loans based on debt-to-income ratio (DTI). Conventional loans allow up to 45–50% back-end DTI with strong compensating factors. FHA allows up to 56.9%. These are the maximum approval thresholds, not recommendations. On a $100,000 gross annual income ($8,333/month), a 45% DTI approval means the lender will give you a loan where total debt payments reach $3,750/month. After a $400 car payment and $200 in student loans, you have $3,150/month for housing. At current rates on a 30-year fixed with taxes and insurance, that buys roughly a $450,000–$480,000 home.
Your Number: What You Should Spend
The 28/36 rule is the starting point, not the ceiling: housing costs at 28% or less of gross monthly income, total debt at 36% or less. On the same $100,000 income: housing at 28% = $2,333/month. That buys roughly a $310,000–$330,000 home at current rates. The gap between the lender’s approval and the 28% target is over $150,000 in home price.
| Gross Annual Income | 28% Housing Budget | 43% Lender Max (typical) | Approximate Home Price at 28% | Approximate Home Price at 43% | |
|---|---|---|---|---|---|
| $60,000 | $1,400/mo | $2,150/mo | ~$185K–$200K | ~$290K–$310K | |
| $80,000 | $1,867/mo | $2,867/mo | ~$250K–$270K | ~$390K–$420K | |
| $100,000 | $2,333/mo | $3,583/mo | ~$310K–$335K | ~$480K–$510K | |
| $120,000 | $2,800/mo | $4,300/mo | ~$375K–$405K | ~$580K–$620K | |
| $150,000 | $3,500/mo | $5,375/mo | ~$470K–$510K | ~$730K–$780K | |
| $200,000 | $4,667/mo | $7,167/mo | ~$630K–$680K | ~$975K–$1.05M | |
| Assumes 10% down, 6.5% rate, 1.1% property tax, 0.5% insurance. No other debt in housing estimate. With existing debt, buying power decreases. | |||||
The True Cost of Homeownership: What Calculators Miss
Online affordability calculators typically include principal, interest, taxes, and insurance (PITI). What they frequently omit:
| Cost | Typical Annual Amount | Monthly Impact | Often Missed In Calculators? | ||
|---|---|---|---|---|---|
| Home maintenance and repairs | 1–2% of home value annually | $400–$800/mo on $500K home | Usually missed | ||
| HOA fees (if applicable) | $100–$1,500+/month | Direct monthly cost | Sometimes included | ||
| Utilities (higher for owners) | $150–$400/month more than renting | Material monthly cost | Almost always missed | ||
| PMI (if under 20% down) | 0.5–1% of loan annually | $200–$400/mo on $400K loan | Sometimes included | ||
| First-year repair surprises | $2,000–$15,000 common | One-time but significant | Never included | ||
| Add $500–$1,200/month to any calculator estimate for maintenance, utilities, and PMI if applicable. This is the realistic ownership cost. | |||||
The House-Poor Test: Four Questions Before You Commit
1. Can I cover 3–6 months of total housing costs in liquid reserves after closing?
Not just closing costs — full emergency fund. A first-year HVAC failure, roof issue, or plumbing emergency can cost $5,000–15,000. Buying a home with no reserves creates financial fragility at the worst possible time.
2. Does my housing payment leave room to save for retirement?
If your mortgage payment would require reducing or eliminating 401(k) contributions, you are buying too much house. The long-term cost of not saving for retirement exceeds the cost of renting longer.
3. Am I buying at the top of what I qualify for because the home is nice?
This is the most common house-poor trigger. Pre-approval for $500,000 does not mean a $500,000 home is the right buy. Target a home that keeps your housing cost at 28% or less, even if the lender approved you for 43%.
4. What happens to my budget if income drops 20%?
Job loss, reduced hours, one income if a two-income household changes. A mortgage you can only afford at maximum income is a fragile position. If a 20% income drop would make the payment unaffordable, the home is too expensive.
“Lender calculators are optimized to tell you what you qualify for. The answer that serves you is what keeps your finances healthy after you close. I have seen buyers get approved for $600,000, spend $580,000, and then watch a $12,000 HVAC replacement two months after closing create real financial strain — because they used every dollar of their savings in the down payment and closing costs. The right home is not the biggest one the lender will fund. It is the one you can afford to actually own.”
— Ryan Brown, Principal Broker & CEO, Own Luxury Homes®
How much house can I afford on my salary?
Multiply your gross monthly income by 28% to get a comfortable housing budget. On $100,000/year, that is about $2,333/month, buying roughly $310K–$335K at current rates. Lenders may approve you for significantly more — but the 28% guideline keeps you financially healthy.
Is the 28/36 rule still relevant in 2026?
Yes, as a target, not as a lender requirement. Lenders approve up to 43–50% DTI. The 28/36 rule represents what financial planners recommend to avoid becoming house-poor — owning a home but having no financial flexibility.
What costs do most affordability calculators miss?
Annual maintenance (1–2% of home value), utilities (higher than renting), first-year repair surprises, and HOA fees. Add $500–$1,200/month to any calculator estimate for a realistic picture.
How much should I have in savings before buying a house?
Down payment + closing costs (2–5% of purchase price) + 3–6 months of total housing costs as reserves. On a $400,000 home with 10% down: $40,000 down + $12,000–20,000 closing + $15,000–25,000 reserves = $67,000–$85,000 total.
Own Luxury Homes® — audited specialists who help you find the home that fits your budget, not just the one that fits the lender’s approval. 12-Point Agent Integrity Audit™. Find your specialist now ›
"The introduction Own Luxury Homes® makes is to a specialist with documented closing history in your specific market — not the county, not the metro, the submarket you're actually selling or buying in. That's the standard we verify before your name goes anywhere."
— Ryan Brown, Principal Broker & CEO, Own Luxury Homes® (FL License BK3626873)