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Home affordability · $300K salary
How much house can I afford on a $300K salary?
On a $300K salary ($300,000 a year), with $500 a month in other debts and 10% down, you can comfortably afford a home of about $877,000. That follows the 28/36 rule at about 7.35% for a 30-year mortgage (October 2026 average). Lenders often approve more: up to about $1,285,000 at 43% debt-to-income.
The answer
Monthly cost
What a $877,000 home costs each month
| Cost | Per month |
|---|---|
| Principal and interest | $5,437 |
| Property tax (1%) | $731 |
| Home insurance | $365 |
| Mortgage insurance (PMI) | $460 |
| Housing payment lenders count | $6,994 |
| Upkeep reserve (1% a year) | $731 |
| Real monthly cost | $7,725 |
That is 31% of gross income once upkeep is counted. You would need about $114,100 at closing: $87,790 down plus $26,310 in closing costs. At this income the 28% limit on housing alone is what caps the price; your other debts are not the constraint.
Other debts
How car loans and student loans change it
Under the 28/36 rule, debts up to about $2,000 a month (8% of income) don't lower the comfortable price, because the 28% housing limit applies first. Above that, and at every level under the 43% stretch, each dollar of debt payments reduces the house.
| Other debts per month | Comfortable (36%) | Stretch (43%) |
|---|---|---|
| $0 | $877,000 | $1,347,000 |
| $250 | $877,000 | $1,316,000 |
| $500 | $877,000 | $1,285,000 |
| $1,000 | $877,000 | $1,222,000 |
| $1,500 | $877,000 | $1,159,000 |
Mortgage rates
How the rate changes it
A one-point drop in rates buys noticeably more house on the same income.
| 30-year rate | Comfortable price | Principal and interest |
|---|---|---|
| 6.35% | $949,000 | $5,314 |
| 6.85% | $912,000 | $5,378 |
| 7.35% (today) | $877,000 | $5,437 |
| 7.85% | $845,000 | $5,501 |
| 8.35% | $814,000 | $5,555 |
Down payment
How your down payment changes it
Under 20% down you pay mortgage insurance (PMI) until you owe 80% of the price.
| Down payment | Comfortable price | PMI | Cash needed at closing |
|---|---|---|---|
| 3% down | $823,000 | $466/mo | $49,400 |
| 5% down | $838,000 | $464/mo | $67,100 |
| 10% down | $877,000 | $460/mo | $114,100 |
| 20% down | $1,035,000 | None | $238,100 |
Questions
Common questions
What mortgage payment can I afford on a $300K salary?
Under the 28/36 rule, up to about $7,000 a month for the mortgage, property tax, insurance and PMI, with $500 in other debts. Lenders that allow 43% debt-to-income would count up to $10,250.
Is $300K enough to buy a house?
At about 7.35% rates and 10% down, $300K comfortably supports a home around $877,000, needing about $114,100 saved for the down payment and closing. Whether that buys a house depends on local prices.
Assumptions
How we worked it out
- Gross household income $300,000 a year ($25,000 a month).
- $500 a month in other debt payments, such as a car or student loan.
- 10% down, 3% closing costs, good credit (700-759), 30-year fixed at 7.35%.
- Property tax 1% of the price a year, home insurance about 0.5%, PMI under 20% down, no HOA.
- Upkeep reserve 1% of the price a year, for a home 10 to 30 years old.
- Comfortable is the 28/36 rule: housing under 28% of gross income and all debts under 36%.
Change any of these in the home affordability calculator.
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