Minimum Income for Mortgage Calculator

Enter the home price you want to buy and this calculator shows the minimum annual income lenders require to qualify, using Fannie Mae DTI rules and 2026 rates.

Car, credit cards, student loans
Minimum annual gross income required
Loan amount
Principal & interest
Property tax
Home insurance
HOA
Total monthly housing (PITIA)
Other monthly debts
Total monthly debt budget
Minimum gross monthly income
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How Lenders Calculate Minimum Income for a Mortgage

Mortgage lenders use the debt-to-income ratio (DTI) to determine how much income you need to qualify. Per the Consumer Financial Protection Bureau and Fannie Mae underwriting guidelines, your back-end DTI (total monthly debt payments divided by gross monthly income) must typically be 43% or less for a Qualified Mortgage. This calculator inverts the standard formula — instead of asking "how much can I afford?", it asks "how much income do I need?".

The formula is:

Minimum Monthly Income = (PITIA + Other Debts) / DTI Ratio

where PITIA = Principal + Interest + Taxes + Insurance + Association dues (HOA). Multiply by 12 to get annual income.

The 2026 DTI Limits by Loan Type

What Counts as "Income" for Mortgage Qualification

Per Fannie Mae Selling Guide B3-3, lenders count these income sources:

Compensating Factors That Allow Higher DTI

If your DTI exceeds the standard cap, lenders may still approve with compensating factors per Fannie Mae B3-4 and FHA Handbook 4155.1:

Sources: Consumer Financial Protection Bureau (consumerfinance.gov), Fannie Mae Selling Guide B3-4 (fanniemae.com), HUD Handbook 4000.1 (hud.gov), VA Lenders Handbook M26-7 (va.gov), USDA Single Family Housing Guaranteed Loan Program (rd.usda.gov). Last updated: May 2026.