CanYouAffordIt?Calculate

House reality check

Can I Afford a $400,000 House?

$400,000 is well above the U.S. median and the floor in most desirable suburbs. It's manageable on $110k–$130k with discipline — and house-poor territory if you stretch.

Estimates only. Not mortgage approval, not lender precision, not legal or tax advice.

Default verdict (you can edit any of this)

Manageable

Workable on $110k–$135k household income — assuming average-tax state and modest other debt.

At 7% / 30 years with 10% down ($40k), P&I is about $2,400/mo. Add tax (~$365), insurance (~$150), PMI (~$170) and you're at ~$3,085/mo. On $10,500 gross that's 29% — borderline 'Manageable' / 'Stretching'. 20% down removes PMI and drops the all-in to ~$2,915.

All-in monthly
$3,082
Income needed (28% rule)
$132,075
Housing % of gross
29.4%
Total DTI
34.1%

Run the numbers on a $400,000 house

Edit anything. Every field updates the results live.

Sticker price of the home.

Cash you bring to closing.

Annual interest rate.

Years (most loans are 30).

Annual property tax. We split into months.

Homeowner's insurance monthly.

0 if no HOA.

Private mortgage insurance. 0 with 20%+ down.

Pre-tax income across all earners.

Car loans, student loans, credit-card minimums.

Estimates only. Not mortgage approval, not financial advice. Numbers vary by lender, credit, state, ZIP, and the day.

Costs people forget

The line items that don’t show up on the loan estimate but absolutely show up in the bank account.

  • PMI at low LTV is structural drag

    5% down + a 7% rate + PMI on a $400k home = roughly $250/mo of pure premium for years. The 20% down move usually pays for itself.

  • Property tax in high-tax states

    $4,400/yr is ~1.1%. NJ / IL / TX can push that to $7,500–$10,000/yr — $300+/mo more on the same house.

  • Insurance is no longer a small line

    $150–$300/mo is normal for $400k homes. Coastal / wildfire markets push higher. Get a real quote.

  • Closing costs: $8–$20k

    Title, escrow, lender, prepaid taxes/insurance. Mostly out-of-pocket.

  • Repair fund: $4,000/yr ballpark

    Roof, HVAC, water heater, sewer, exterior paint. Bigger house = bigger numbers.

  • Furniture + first-year setup

    $8–$20k. Bigger house = more empty rooms = more spend.

Reality check before you bid

  • Aim for ≤ 28% housing of gross; ≤ 36% total DTI. At $10,500 gross, the math just barely works at 28%.

  • Stretching to 35% housing ratio means a $1,500 car repair turns the month upside down.

  • Don't deplete savings to make 20% down — keeping 3 months of all-in housing in cash is more valuable than skipping PMI.

  • Rate locks expire in 30-60 days. If shopping slow, ask about extended locks early.

What salary carries a $400,000 house?

A few salary reality checks that line up reasonably with this price point.

Cars that fit a $400,000 household

Curated picks. Open a car page to run the affordability calculator with your real income and APR.

Build this house into something bigger

FAQ: Affording a $400,000 house

Short, honest answers — not pre-approval.

  • What income do I need for a $400,000 house?
    Roughly $110,000–$135,000/yr to keep housing near 28% of gross in an average-tax state with modest other debt.
  • What is the monthly payment on a $400,000 house?
    At 7% / 30 years with 10% down: ~$2,950–$3,150 all-in. 20% down drops the payment by ~$170 by removing PMI.
  • How much down payment do I need for a $400,000 home?
    3.5% FHA = $14,000; 5% conventional = $20,000; 20% = $80,000. Plus 2-5% in closing costs in cash on top.
  • Does this include property taxes, insurance, HOA, and PMI?
    Yes — all five line items roll into the monthly housing payment. Edit each for your real numbers.
  • Can I afford a $400,000 house on $100,000 a year?
    Tight but possible with 20%+ down, an average-tax state, and minimal other debt. At $100k income, monthly housing should stay under $2,800; with PMI the $400k payment runs higher.

This is not financial advice

CanYouAffordIt is for entertainment and ballpark planning only. Real insurance quotes, sales tax rules, dealer fees, loan approvals, and maintenance costs vary by location, vehicle, and credit profile. Before signing a contract, talk to a human you trust — and read the fine print.

See also other house reality checks: $200,000 house, $250,000 house, $300,000 house, $350,000 house, $450,000 house, $500,000 house, $600,000 house, $750,000 house, $1,000,000 house, $1,500,000 house. Canonical: https://trycanyouaffordit.com/can-i-afford-a-400000-house.