Mortgage Pre-Approval Calculator

Lenders size a mortgage with two ratios at once: the housing payment against gross monthly income, and that payment plus all other debt against the same income. Pick a loan program and this tool applies both caps, reports the loan the binding one allows and names which ratio is holding you back. A second tab takes a loan you already have in mind and says whether it clears both ratios, and how much more income or less debt it would take. It is a ratio test on documented income, not a pre-approval, so credit, reserves, employment and the appraisal still apply.

Calculator Type
Before tax, and only income a lender can document.
Card minimums, car and student loans, child support and alimony.
Underwriting counts these inside the housing ratio.
FHA MIP, or PMI on a conventional loan under 20 percent down.
Used only to turn the loan amount into a purchase price.
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Before tax, and only income a lender can document.
Card minimums, car and student loans, child support and alimony.
Underwriting counts these inside the housing ratio.
FHA MIP, or PMI on a conventional loan under 20 percent down.
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