How much house can you afford on an $80,000 salary? The honest answer is about $235,000 with 10% down at a 7% mortgage rate — once you count the full monthly cost (loan payment plus property tax, insurance, and PMI), not just principal and interest. Rules of thumb that stop at the loan payment quietly overstate your budget by nearly $77,000.
Run your own numbers in seconds with NovaFluxT’s free mortgage calculator — enter any home price, down payment, and rate to see the true monthly cost instantly. And if you want the paycheck math behind any salary first, NovaFluxT’s salary paycheck calculator breaks down federal tax, FICA, and state tax for you.
Below is the complete hand calculation for the $80,000 case, step by step, with every assumption labeled so you can adjust any number to your situation. See the CFPB’s guide to owning a home. See the Federal Reserve’s refinancing guide.
The short answer
| Amount | |
|---|---|
| Gross salary | $80,000/yr ($6,667/mo) |
| Estimated take-home (single, Texas, 2026) | $65,010/yr ($5,418/mo) |
| Max housing budget (28% rule) | $1,867/mo |
| Affordable home price (10% down, 7%, 30-yr fixed) | ≈ $235,000 |
| Down payment needed (10%) | $23,500 |
| Full monthly cost at that price | $1,861/mo |
Assumptions used throughout: single filer, 2026 federal brackets and standard deduction, Texas (0% state income tax), 30-year fixed mortgage at 7% APR, 10% down payment, property tax 1.1%/yr of home price, homeowner’s insurance $1,800/yr, PMI 0.5%/yr of the loan amount.
Step 1: What you actually take home
Lenders use gross income, but you live on take-home pay — so let’s compute it honestly.
Federal income tax (2026, single filer). The 2026 standard deduction for a single filer is $16,100, so taxable income is $80,000 − $16,100 = $63,900. The 2026 brackets tax it in layers:
- 10% on the first $12,400 → $1,240
- 12% on $12,401–$50,400 ($38,000) → $4,560
- 22% on $50,401–$63,900 ($13,500) → $2,970
Federal tax = $8,770. Note the marginal bracket is 22%, but the effective federal rate is only about 11% — brackets apply to slices, not the whole salary.
FICA: 7.65% × $80,000 = $6,120. Texas state tax: $0 (assumption — in California or New York this number is very different).
Take-home: $80,000 − $8,770 − $6,120 = $65,010/yr, about $5,418/mo.
Step 2: The 28% rule gives your monthly budget
The standard “front-end ratio” lenders use is 28%: your total housing cost shouldn’t exceed 28% of gross monthly income.
$80,000 ÷ 12 = $6,666.67/mo → 0.28 × $6,666.67 = $1,866.67/mo (we’ll call it $1,867).
Crucially, that $1,867 must cover PITI — principal, interest, property tax, and insurance — plus PMI when you put down less than 20%. Most affordability guesses fail right here: they budget the loan payment only.
Step 3: From monthly budget to home price
Let the home price be H. With 10% down, the loan is 0.9H. At 7% over 30 years, each $1,000 borrowed costs $6.6530/month (from the standard amortization formula), so:
- Principal + interest: 0.9H × 0.0066530 = 0.0059877H
- Property tax (1.1%/yr): 0.011H ÷ 12 = 0.00091667H
- Insurance: $1,800 ÷ 12 = $150
- PMI (0.5%/yr of loan): 0.005 × 0.9H ÷ 12 = 0.000375H
Total monthly = 0.00727937H + $150. Set equal to the $1,866.67 budget:
0.00727937H = $1,716.67 → H ≈ $235,800, which we round to $235,000.
Verify at $235,000 (loan $211,500):
| Component | Monthly |
|---|---|
| Principal + interest | $1,407.11 |
| Property tax | $215.42 |
| Insurance | $150.00 |
| PMI | $88.13 |
| Total | $1,860.66 |
$1,860.66 sits just under the $1,866.67 budget. The math checks.
The $77,000 mistake most calculators make
If you ignored tax, insurance, and PMI and spent the whole $1,867 on principal and interest, the same formula gives a loan of $1,866.67 ÷ 0.0066530 ≈ $280,573 — a $312,000 home with 10% down. That’s the number naive rules of thumb produce, and it’s $77,000 of fantasy: the tax bill, the insurance premium, and PMI are real monthly outflows the lender will count. Always budget PITI + PMI, never P&I alone.
Two variations worth knowing: with 20% down (no PMI), the same budget stretches to about $249,000. And if rates fell to 6%, the 10%-down price rises to roughly $257,000 — about $22,000 of extra house per point of rate.
Don’t forget the cash you’ll need upfront
The $23,500 down payment isn’t the whole cash requirement. Budget 2–5% of the price for closing costs ($4,700–$11,750 on $235,000), plus moving costs and a 3–6 month emergency fund after closing. And remember the trade-off: every extra dollar of house payment is a dollar not compounding elsewhere — if you’re weighing a bigger home against retirement saving, our Roth vs Traditional 401(k) breakdown shows how to think about the other side of that choice.
Frequently asked questions
Is the 28% rule based on gross or net income?
Gross. Lenders divide your housing cost by pre-tax monthly income, so 28% of $80,000 means $1,867/month whether your take-home is $5,400 or $4,800. For your own budgeting, also check the payment against take-home pay: $1,861 is about 34% of the $5,418 monthly take-home computed above, which is why the cash-flow reality feels tighter than the rule suggests.
Can I buy a house on $80,000 with a smaller down payment?
Yes — FHA loans allow 3.5% down and some conventional programs allow 3–5%. But a smaller down payment means a bigger loan, higher PMI, and a lower affordable price under the same 28% budget. On $235,000 with 3.5% down at 7%, PMI alone would run roughly $130–$160/month, pushing the affordable price down toward $215,000–$220,000.
How much house can I afford on $80,000 salary with no debt?
The 28% front-end rule doesn’t change with your other debts, so the answer stays about $235,000 under our assumptions. What changes is the back-end ratio (all debts ≤ 36% of gross): with no car payment or student loans, you pass that test easily; with $800/month in other debts, the back-end cap becomes the binding constraint instead.
Do property taxes really change the answer that much?
Enormously. At 1.1%/yr they cost $215/month on a $235,000 home here — but in New Jersey or Illinois, where effective rates can exceed 2%, the same home carries $390+/month in tax, cutting roughly $25,000 off the affordable price. Always use your county’s actual rate, not a national average.
What salary do I need to afford a $400,000 house?
Work backward: a $400,000 home with 10% down at 7% runs about $3,062/month all-in (P&I $2,395 + tax $367 + insurance $150 + PMI $150). At 28% of gross, that needs $10,935/month, or roughly $131,000/yr in salary — before considering your other debts.