How to Use This Home Budget Stress Test
This tool is a personal cash-flow planner, not a mortgage-approval calculator. It uses take-home income, the housing payment you enter, normal living expenses, and a savings target to estimate the cash buffer left each month.
Budget Mode
The housing-share percentage shown here is PITI, HOA, and mortgage insurance divided by the take-home income you entered. The green/yellow/red display is a planning signal only; lenders normally calculate debt-to-income ratios using gross income and loan-program rules.
Stress Test
Enter a lower monthly income to see whether the same housing and living costs still fit. The emergency-fund figure estimates how much cash would be needed to cover the entered costs for the number of months selected; it does not predict job loss, foreclosure, or investment returns.
Need a lender-style DTI calculation?
Use our Debt-to-Income Ratio and 28/36 Rule Calculator, which uses gross monthly income and recurring debt payments. Qualification standards vary by loan program, lender, credit profile, reserves, and automated underwriting findings.
Educational estimate only. Verify affordability and loan eligibility with your lender and your own complete household budget.