FHA debt-to-income is not just one number.
FHA underwriting looks at the mortgage payment compared with effective income and the total fixed payments compared with effective income. In plain English, that means the housing payment and the whole monthly debt picture both matter.
HUD Handbook 4000.1 includes manual underwriting ratio guidance, but automated underwriting, compensating factors, lender overlays, credit profile, reserves, and property details can all change how a file is reviewed.

