Home Affordability Calculator
Find a home budget that fits your income, monthly expenses, and cash on hand.
Preparing your calculator…
MansionMath provides estimates for educational purposes. Actual loan terms, taxes, insurance, fees, investment returns, and eligibility may vary.
How this calculator works
We find the highest price satisfying your housing DTI, total DTI, cash-to-close, and optional monthly target. Housing DTI includes principal, interest, taxes, insurance, PMI, and HOA. The target adds maintenance and utilities. Conservative uses 80% of your DTI targets; comfortable uses 90%; maximum uses 100%. Cash reserves remain unspent. PMI is modeled at the selected annual loan rate below 20% down. Numerical searches handle that threshold explicitly.
Use current quotes, local rates, and measured dimensions to make this estimate useful for your situation.
Frequently asked questions
Does this calculator include HOA and student loans?+
Yes. HOA is part of your monthly housing payment, and student loans count toward total debt-to-income. Both can reduce your estimated budget.
Is the maximum budget a loan approval?+
No. It is an estimate based on your chosen assumptions. Lenders also consider credit, loan type, verified income, assets, and other requirements.
What does adding down payment cash mean?+
The buying-power comparison adds new cash to both your down payment and your available cash. Moving existing reserve money is a different scenario: edit your cash reserves directly.