# How much house can I afford on 100k salary in 2025
Run the math on a $100,000 salary and you land in a strange spot: comfortable enough to qualify for a mortgage almost anywhere in the country, but squeezed out of a lot of the housing stock in the metros where the jobs actually are. The honest answer is a range — roughly $300,000 to $420,000 — and where you fall in that range has less to do with your salary than with your existing debt and your down payment.
Start with gross monthly income: $8,333. The standard 28/36 rule caps your housing payment at 28% of that ($2,333) and your total debt payments at 36% ($3,000). If you're carrying $667 a month in car payments, student loans, or credit cards, you've already hit your ceiling before a mortgage payment even enters the picture.
Assume a 30-year fixed rate around 6.8%, which is roughly where the market has sat through early 2025. With 20% down, a $2,333 monthly cap actually supports a loan in the $320,000 range — but once you layer in property taxes and insurance, the math gets less forgiving:
That's already over the $2,333 guideline. So the "$400,000 home" number you'll see thrown around online only works if you have little or no other debt, a strong credit score, and a lender willing to stretch the back-end ratio.
Drop the down payment and the picture shifts:
The pattern here is worth sitting with: a smaller down payment doesn't just mean a bigger loan — it means PMI eats the savings you'd otherwise get from financing less. On a $100K salary, that trade-off is the whole ballgame.
Lenders care more about your DTI ratio than your raw income. The 43% max DTI is the regulatory backstop, but in practice, approval odds drop noticeably once you cross 36%, and they drop sharply past 43% even with good credit.
Credit score shifts the goalposts:
Here's what existing debt actually costs you in housing budget, dollar for dollar:
| Debt Type | Typical Monthly Payment | Effect on Housing Budget |
|-----------|-------------------------|---------------------------|
| Student loans | ~$393 | Direct $393 reduction |
| New car loan | ~$563 | Direct $563 reduction |
| Credit card minimums | $200–$400 | Direct reduction |
| Personal loans | $200–$500 | Direct reduction |
VA loans stretch this further — up to 41% DTI for qualified veterans with compensating factors — and FHA will sometimes go to 50% with strong offsetting factors like large cash reserves. But most $100K-salary buyers are working with conventional guidelines, where a single car payment can knock $50,000 off your affordable home price.
One thing brokers see constantly: buyers forget to count the small stuff. Streaming subscriptions don't count, but a $150/month "buy now pay later" furniture plan or a personal loan to a family member absolutely does if it shows up on a credit pull. Get a real accounting of every recurring obligation above $50 before you talk to a lender — the number is almost always higher than people expect.
Down payment size is arguably the single biggest lever a $100K earner has, because it moves you between loan products with very different insurance costs.
Conventional loans need 3% down for first-time buyers, 5% for repeat buyers — but anything under 20% triggers PMI, adding $200–$400/month depending on credit and loan size.
FHA loans require 3.5% down but carry both an upfront premium (1.75% of the loan) and an annual mortgage insurance premium (0.55–0.85%). On a $350,000 home at 3.5% down, that's roughly $270/month in insurance alone — money that buys you nothing in equity.
VA loans allow 0% down for eligible veterans, which meaningfully changes the affordability math. A veteran earning $100K with minimal debt could reasonably stretch to a $450,000 home, assuming they're comfortable with the resulting payment — the loan doesn't require it, but the wallet still has to handle it.
USDA loans offer 0% down in eligible rural and suburban areas — a larger footprint than people assume, since "rural" for USDA purposes often includes suburbs just outside major metro boundaries.
The trade-off between 20% down and a smaller down payment isn't purely financial — it's about optionality:
Down payment assistance programs can close some of this gap. California's CalHFA offers up to 3% of purchase price; New York's SONYMA pairs below-market rates with reduced down payment requirements. These are worth checking before assuming you need the full 20%.
Principal and interest is usually only 60–70% of what you'll actually pay each month. The rest is where affordability calculators quietly fall apart.
Property taxes alone create massive swings by state, even on an identical $400,000 home:
That's a $400+ monthly swing based purely on zip code — bigger than most people's car payment.
Insurance has also gotten meaningfully more expensive in the last few years, particularly in hurricane, wildfire, and flood-prone regions, where some carriers have pulled out of markets entirely. If you're house-hunting in Florida, coastal Texas, or parts of California, get an actual insurance quote before you fall in love with a listing — the "estimated 0.5%" annual rate assumption can be off by a factor of two or three in high-risk zones.
PMI, again, ranges 0.5–1.5% annually depending on credit and loan-to-value — on a $350,000 loan at 10% down, that's $146–$438 monthly, a wide enough range that shopping lenders for PMI terms is worth the effort.
HOA fees are the line item people budget for last and regret most. Typical fees run $200–$400/month, but luxury or high-amenity communities can run $500–$1,000+, and unlike a car payment, you can't refinance your way out of an HOA increase. These count fully against your DTI.
Maintenance is the cost nobody bills you for directly but every homeowner pays eventually — budget 1–2% of home value annually, or $3,000–$6,000 a year on a $350,000 home, with the understanding that this is an average, not a guarantee. A furnace that dies in year two doesn't average itself out.
Beyond CalHFA and SONYMA, most states run some version of a first-time buyer assistance program, typically offering $5,000–$25,000 through grants, forgivable loans, or deferred-payment second mortgages. Eligibility usually hinges on income caps, first-time buyer status, and a homebuyer education course — a few hours of paperwork that can meaningfully change your down payment math. These programs are underused simply because people don't know to ask about them; your lender won't always volunteer the information unless you bring it up first.
620 is the conventional loan floor; 740+ unlocks the best rates. FHA will go to 580 with 3.5% down, or 500 with 10% down. The practical impact: moving from a 650 to a 740 score can realistically add $30,000–$50,000 to your buying power through better rates and lower mortgage insurance costs.
Prioritize high-interest debt — credit cards above 15% APR — since every $100 in monthly obligations you eliminate opens up roughly $100 in housing budget. Don't rush to pay off a 4% student loan if it means missing a window in an appreciating market; the math usually favors keeping cheap debt and buying sooner.
In markets like San Francisco, Seattle, or New York, $100K typically buys a condo or a home well outside the city core. Comfortable affordability in those metros often assumes household income above $150,000. Local first-time buyer programs can help close some of the gap, but the honest move for many buyers is looking at secondary metros instead.
Budget 3–5% of the purchase price — $10,500 to $17,500 on a $350,000 home. Some of this can be rolled into the loan or covered by seller concessions, but showing up with cash reserves beyond the down payment makes underwriters more comfortable and can smooth negotiations.
The break-even point is usually 5–7 years in the same location. If your all-in ownership cost (mortgage plus taxes, insurance, maintenance, and HOA) doesn't exceed comparable rent by more than about 20%, and your job and savings are stable, buying tends to make sense. If you might relocate within three years, renting usually wins on pure economics even if it doesn't feel as satisfying.
---
The number that matters most isn't your salary — it's your DTI after every recurring obligation is counted honestly, and your down payment after accounting for what PMI actually costs over time. Run those two numbers with a real lender, not just a calculator, before you start touring houses.