Home Affordability28/36 RuleDTI RatioIncome BasedHow Much HouseFree ToolHome Affordability28/36 RuleDTI RatioIncome BasedHow Much HouseFree Tool

How Much
House?

28/36 Rule · DTI Ratio · Income-Based Estimate

Your Income

Monthly Debts

Loan Details

Maximum Home Price
Max PITI/Mo
Front-End DTI
Back-End DTI

The 28/36 Rule

RatioMaximumWhat It Means
Front-End (28%)28% of gross incomeMax monthly housing cost (PITI)
Back-End (36%)36% of gross incomeMax total monthly debts (housing + all debts)

FHA loans allow up to 31/43. VA loans focus on back-end only (41%).

Affordability by Income

Annual IncomeMax Home (20% down)Max Payment
$50,000~$200K$1,167/mo
$75,000~$310K$1,750/mo
$100,000~$420K$2,333/mo
$150,000~$640K$3,500/mo
$200,000~$860K$4,667/mo

At 6.5% rate, 30-year fixed, no other debts. Actual varies by location and debts.