What Salary Do You Need to Buy a $400,000 House?
To buy a $400,000 house you need roughly $120,000 to $130,000 a year, assuming a 20% down payment, a 6.5% rate, and no other debt payments.
That range moves a lot depending on three things: your down payment, your local property tax rate, and what else you already owe each month.
Where the number comes from
With $80,000 down (20%), the loan is $320,000. At 6.5% over 30 years:
| Component | Monthly |
|---|---|
| Principal & interest | $2,023 |
| Property tax (1.1%) | $367 |
| Home insurance | $125 |
| PMI | None at 20% down |
| Total | $2,515 |
Lenders want that total at or below 28% of gross monthly income. $2,515 ÷ 0.28 = $8,982 a month, or about $107,800 a year at the absolute limit.
But that is the ceiling, not a comfortable number. At a more realistic 25%, you need $10,060 a month — around $120,700 a year. Check your own figures in the house affordability calculator.
Down payment changes it more than people expect
| Down payment | Loan | Monthly total | Salary needed (28%) |
|---|---|---|---|
| $20,000 (5%) | $380,000 | $3,082 | $132,100 |
| $40,000 (10%) | $360,000 | $2,930 | $125,600 |
| $60,000 (15%) | $340,000 | $2,777 | $119,000 |
| $80,000 (20%) | $320,000 | $2,515 | $107,800 |
| $120,000 (30%) | $280,000 | $2,262 | $96,900 |
Notice the jump between 15% and 20%. That is not just the smaller loan — it is PMI disappearing. Crossing the 20% line removes roughly $170 a month here, which is worth about $7,000 of salary requirement on its own.
Property tax swings it by $25,000 of salary
| Tax rate | Monthly tax | Salary needed (28%) |
|---|---|---|
| 0.5% | $167 | $99,200 |
| 1.1% | $367 | $107,800 |
| 1.8% | $600 | $117,800 |
| 2.2% | $733 | $123,500 |
The same $400,000 house, the same loan, the same rate — and a $24,000 difference in the income you need, purely from where it sits. Look up your county’s actual rate before trusting any national average.
What existing debt does
Lenders cap total debt payments at about 36% of gross income, so every existing payment eats into the same budget:
| Your other debt | Salary needed |
|---|---|
| None | $107,800 |
| $400 car payment | $121,200 |
| $400 car + $300 student loan | $131,200 |
| $400 car + $300 student + $200 cards | $137,800 |
Roughly, every $100 of monthly debt adds $3,300 to the salary you need. If you are close to buying and carrying a car loan you could clear, paying it off often moves you further than saving the same amount toward the deposit.
What you need saved, not just earned
| Item | Amount |
|---|---|
| Down payment (20%) | $80,000 |
| Closing costs (2–5%) | $6,400–$16,000 |
| Emergency fund | 3–6 months of expenses |
| Maintenance budget | ~$330/month ongoing |
Income qualifies you for the loan. Savings are what make the purchase survivable. Buyers who stretch to 20% by emptying their savings are in a worse position than those who put 10% down and keep a cushion — the extra PMI costs far less than a roof repair on a credit card.
Frequently asked questions
What salary do I need for a $400,000 house? About $108,000 at the lender’s 28% limit with 20% down, or closer to $121,000 for a comfortable 25%.
Can I buy a $400,000 house on $100,000? Possibly, with 20% or more down, low property tax, and no other debt — but you would be near the limit. Under $95,000, most lenders would decline without a larger deposit.
Is 28% or 25% the right target? 28% is what lenders allow. 25% is what leaves room for saving, childcare, and income that varies. Neither is wrong — the gap between them is your margin.
Does a higher credit score reduce the salary needed? Indirectly, yes. A better rate lowers the payment, which lowers the income required. Half a percentage point here is worth about $110 a month.
These figures are estimates for planning purposes. Your actual qualification depends on your credit, location, lender, and loan program — speak to a mortgage broker or lender for numbers specific to your situation.
