Affordability

How much income do I need to buy a $400,000 house?

Working backwards from a $400K purchase price to the salary, monthly payment, and cash-to-close it actually requires.

Brian Mix— Licensed Loan Officer, NMLS #111175
Published July 28, 20267 min read

Est. monthly PITI (5% down)

≈ $2,900/mo

Conservative income (28% DTI)

$125,000/yr

Typical income (36% DTI)

$95,000/yr

Stretched FHA income

$70,000/yr

Working backwards from the price

A $400,000 home in 2026 with 5% down ($20,000), a 6.75% 30-year rate, average 1.1% property tax, 0.4% insurance, and monthly PMI runs about $2,900/month all-in. That number is what your income has to support.

At a conservative 28% front-end DTI, you need about $125K in gross annual income ($10,357/mo). Most lenders will actually approve you at 36%–43% back-end DTI, which drops the required income to $85K–$95K if you have modest other debt. Stretched FHA underwriting (50%+ DTI) can qualify a $70K borrower with strong compensating factors — but that's tight.

The cash you actually need at closing

Down payment is only part of the picture. For a $400K purchase you should plan for:

  • Down payment: $14,000 (3.5% FHA) to $80,000 (20% conventional)
  • Closing costs: $10,000–$15,000 (loan fees, title, escrows, prepaid taxes/insurance)
  • Reserves: 2–6 months of PITI ($5,800–$17,400)

Total cash to close: $30,000 at the low end (FHA + seller credits), $110,000+ at the high end (20% conventional with full reserves).

Programs and tradeoffs at $400K

FHA is aggressive: $14,000 down, but you'll pay upfront MIP (1.75% = $6,930 financed) and monthly MIP for the life of the loan.

Conventional 5% down is the most popular path: $20,000 down, monthly PMI that drops off at 78% LTV.

VA (if eligible): $0 down, no PMI, best pricing available.

USDA works only in eligible ZIPs and income-cap counties — many $400K homes are in areas that fall outside USDA eligibility.

Is this path right for you?

Frequently asked questions

Can I buy a $400K house on $80K?

Yes — with FHA at 3.5% down, low other debt, and strong credit, $80K qualifies most buyers for a $400K home. It's tight (mid-40% DTI), so bring reserves and keep a lid on new debt during underwriting.

What credit score do I need?

580+ minimum for FHA, 620+ for conventional. For best pricing on a $400K purchase, aim for 720+ conventional or 680+ FHA.

How does putting 20% down change the math?

20% down ($80K) eliminates PMI (~$110/mo saved), lowers the loan to $320K, and cuts PITI to roughly $2,450/mo — dropping the required income to about $70K conservatively or $55K stretched.

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Last reviewed: Brian Mix · July 2026
Next review: October 2026
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