How Much House Can I Afford on a $100K Salary?
Reviewed: August 2026 · 28/36 rule + lender-maximum math, all shown · 100% client-side
Quick answer: on a $100,000 salary at 2026 rates, you can afford roughly $311,000 on the conservative 28/36 rule (housing payment near $2,333/month) and up to about $419,000 at the lender maximum (43% DTI). Even $1,000/month of other debt only trims the comfortable budget to $267,000 — six-figure income buys DTI resilience. The real decisions at this level are geographic (the same budget is modest in California, luxurious in Texas) and structural (primary home vs. house-hack vs. starter-plus-rental). Get your exact number below.
Affordability Calculator — preset to $100K
Shows both budgets: comfortable (28/36 rule) and lender maximum (~43% DTI). Runs 100% in your browser.
How the Budgets Are Calculated
Both budgets come from debt-to-income ratios, the same way lenders compute them. The 28/36 rule (CFPB qualified-mortgage guidance) caps housing at 28% of gross monthly income and total debt at 36%; the lender maximum uses the 43% back-end that conventional approvals routinely reach. Payments convert to prices with the standard amortization formula (worked in full on our mortgage calculator page), including property tax, insurance, and PMI until 20% equity. Assumptions in the tables: 6.5% 30-year rate, 1.1% property tax, $1,500/yr insurance, PMI 0.5% — every one editable in the calculator above.
Scenario Table: Debt × Budget Type
| $100k salary · 6.5% · ~7% down | Comfortable (28/36) | Lender max (~43% DTI) |
|---|---|---|
| $0/mo debts | $311,000 | $419,000 |
| $500/mo debts | $311,000 | $409,000 |
| $1,000/mo debts | $267,000 | $343,000 |
Rate Sensitivity
| Rate environment | 30-yr rate | Comfortable max price |
|---|---|---|
| Rate-cutter era | 5.5% | $337,000 |
| Mid-market 2026 | 6.5% | $311,000 |
| High-rate stress test | 7.5% | $288,000 |
Rate context: Freddie Mac Primary Mortgage Market Survey.
Six Figures: The Geography and Structure Decisions
A $311,000–$419,000 budget maps onto completely different lives depending on the map pin. In San Jose or Seattle it is a condo, full stop. In Austin, Atlanta, Charlotte, or Raleigh it is a new-construction 3–4 bedroom in a good school district — median or better. In San Antonio, Memphis, or Oklahoma City it is the top quartile of the market. Because the national median price (~$400,000) sits inside your range, you have the option most buyers do not: choose your market for career and life, and let the budget follow.
Three structural patterns are worth weighing at $100k. House-hacking: a $400,000 duplex with a rented second unit (75% of rent counts toward qualifying) converts DTI headroom into an asset that pays you. Starter-plus: buy at $280,000 instead of $419,000, invest the $1,000+/month payment gap — at 7% over 10 years that is roughly $170,000 of portfolio instead of extra house equity, with far more mobility. The 20% shortcut: at $25,000–$50,000 down you are 1–3 years from eliminating PMI entirely rather than 5+; run the amortization with extra payments in our mortgage calculator to see the exact month PMI dies.
One warning unique to this bracket: high-tax states bite hardest here. A 2.2% property tax rate (NJ, IL) on a $400,000 home adds $733/month to the payment — shrinking max price by roughly $90,000–$100,000 versus a 0.6% state. The calculator's tax field is the single most important input when you cross state lines.
Five Levers Worth Real Money at $100K
- Run the tax-rate comparison across your candidate states. A 1.5-point property-tax difference is a $70,000+ budget swing at this level — bigger than any rate-negotiation win.
- Kill PMI early with targeted principal payments. An extra $300/month on a $390,000 loan removes PMI ~2 years sooner — model it in the mortgage calculator.
- House-hack if the market rents support it. 75% rent credit plus FHA 3.5% down (or 5% conventional on a duplex) turns DTI headroom into income.
- Keep the payment gap and invest it. Buying $100,000 under the max and investing the ~$650/month difference often outperforms the bigger house financially — with mobility as the bonus.
- Quote insurance before you offer. At $400,000, insurance varies $1,000-$3,000+/year by state and risk zone — a $170/month payment difference the calculators otherwise hide.
FAQ
How much house can I afford on $100,000 a year?
About $311,000 on the conservative 28/36 rule and up to roughly $419,000 at the 43% DTI lender maximum, at 6.5% with $25,000 down. Even $1,000/month of debt only lowers the comfortable budget to ~$267,000.
Can I afford a $400,000 house on $100k?
At the lender maximum, yes: the payment is about $2,950/month with 6% down — a 35% housing ratio, approvable with modest other debt. Comfortably, $400,000 wants ~$125k of income or a bigger down payment.
What salary for a $500,000 house?
About $155,000-$160,000 comfortably at 28/36, or ~$120,000 at the 43% stretch with 20% down and no other debt.
Is 100k a good salary to buy a house anywhere in the US?
Almost anywhere except the top handful of coastal metros (San Jose, San Francisco, Seattle, NYC suburbs, Boston). In the majority of US metros it buys median or better.
Should I use the full $419,000 approval?
Rarely. The approval assumes 43% of income goes to debt with nothing for retirement, maintenance (1%/year on a $400k house = $4,000), or life. Most six-figure buyers are happiest parked nearer the $311,000 comfortable line.