2026 Affordability Calculator

How Much House Can I Afford?

Deterministic, no AI guessing. We solve for the maximum home price your income supports under the conservative 28/36 rule, the moderate FHA/QM band, and the aggressive lender max — with your state's property tax and homeowners insurance baked in.

Your numbers
MA defaults: 1.23% property tax · ~$1,750 insurance on a $300K home (scaled).
Conservative
28/36 DTI
$280,000
max home price
PITI/mo$2,217
Maint reserve$234
Housing DTI28%
Moderate
31/43 DTI
$310,000
max home price
PITI/mo$2,454
Maint reserve$259
Housing DTI31%
Aggressive
36/45 DTI
$360,000
max home price
PITI/mo$2,850
Maint reserve$300
Housing DTI36%
Moderate column breakdown (31/43 DTI)
Loan amount$279,200
Principal + interest$1,811/mo
Property tax$318/mo
Homeowners insurance$151/mo
PMI$175/mo
HOA$0/mo
Maintenance reserve (1%)$259/mo
Effective rate (after credit tier)6.75%
Binding constraint: your housing DTI cap (31%).
What lenders won't tell you.A pre-approval is built against maximum DTI — it has zero reserve for the 1–3% of value that real ownership demands every year. Buy at the Conservative or Moderate column. Use Aggressive only with a written maintenance plan and a 3-month reserve. See the full affordability framework.
Get the full report + first-year cost forecast

We'll send the breakdown, the maintenance-reserve worksheet, and the inspection-readiness checklist tied to your state.

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Pre-approval ≠ true affordability.

See how your monthly costs fit into a personalized 5-year home plan, including maintenance and replacement reserves.

Next decisions in the buyer path

Frequently asked

How much house can I afford?+

Take your gross annual income and apply the 28/36 rule: housing payment (PITI + HOA) should not exceed 28% of gross monthly income, and total debt should not exceed 36%. Subtract your existing monthly debt from the 36% cap to find the housing budget the bank will actually approve. The calculator on this page does the full math against your state's property-tax rate and homeowners-insurance average — not just principal and interest.

What is the 28/36 rule?+

The 28/36 rule is the long-standing front-end / back-end DTI benchmark: housing cost ≤ 28% of gross monthly income, total debt service ≤ 36%. Most lenders will stretch to 31/43 (FHA/QM) or 36/45 in tight markets, but the 28/36 band keeps a real maintenance reserve intact. The Conservative column above uses 28/36 as the default.

How much income do I need to afford a $500,000 home?+

With 10% down, a 30-year mortgage at 6.75%, and average state tax + insurance, a $500K home runs roughly $3,700–$4,000 per month PITI. Applying the 28% front-end cap, you need approximately $158,000–$172,000 in gross household income — before factoring in non-mortgage debt.

Should I use my pre-approval amount as my home budget?+

No. Lender pre-approvals are designed against maximum DTI and do not reserve anything for maintenance, repairs, or system replacement. A home that fits inside lender approval can still leave you cash-poor against the 1–3% of value that ownership demands each year. Buy at the Conservative or Moderate column, not the Aggressive.

What's included in PITI?+

Principal, Interest, Property Tax, and Insurance. The calculator above also factors PMI when down payment is under 20%, any HOA you enter, and a separate maintenance reserve target at 1% of home value per year. PITI is what the bank looks at; PITI + maintenance is what you actually need to budget.

How does down payment affect affordability?+

A higher down payment cuts your loan balance dollar for dollar, removes PMI at 20% LTV, and lowers monthly payment — which raises the home price your DTI will support. The calculator above re-solves for max home price each time you change down payment. Most 2026 buyers see the biggest swing crossing the 20% threshold.