Which statement accurately describes front-end and back-end DTI?

• A. Front-end DTI measures housing-related payments relative to income; back-end DTI includes all monthly debt obligations.
• B. Front-end DTI includes all monthly debt obligations; back-end DTI includes housing payments only.
• C. Both measure housing payments.
• D. DTI is not used in underwriting.

Answer: (A)

Understanding debt-to-income ratios is about measuring how big a borrower’s monthly debt payments are relative to their income. The front-end DTI focuses on housing costs, typically the mortgage payment including taxes and insurance (PITI), as a percent of gross monthly income. The back-end DTI adds up all monthly debt obligations—housing costs plus other debts like credit cards, car loans, student loans, and alimony—and compares that total to gross monthly income. This separation helps lenders gauge how well a borrower can handle housing payments alone versus all debts combined.

The statement is best because it correctly identifies front-end DTI as housing-related payments relative to income and back-end DTI as all monthly debt obligations. The other choices mix up these definitions or claim DTI isn’t used in underwriting, which isn’t accurate.