4.5 Recognizing that loans to subprime borrowers present elevated credit risk, providers should verify and document the borrower's income (both source and amount), assets and liabilities. Stated income and reduced documentation loans to subprime borrowers should be accepted only if there are mitigating factors that clearly minimize the need for direct verification of repayment capacity. Reliance on such factors also should be documented. Typically, mitigating factors arise when a borrower with favorable payment performance seeks to refinance an existing mortgage with a new loan of a similar size and with similar terms, and the borrower's financial condition has not deteriorated. Other mitigating factors might include situations where a borrower has substantial liquid reserves or assets that demonstrate repayment capacity and can be verified and documented by the provider. However, a higher interest rate is not considered an acceptable mitigating factor. 8 The fully indexed rate equals the index rate prevailing at origination plus the margin to be added to it after the expiration of an introductory interest rate. For example, assume that a loan with an initial fixed rate of 7% will reset to the six-month London Interbank Offered Rate (LIBOR) plus a margin of 6%. If the six-month LIBOR rate equals 5.5%, providers should qualify the borrower at 11.5% (5.5% + 6%), regardless of any interest rate caps that limit how quickly the fully indexed rate may be reached.
9 The fully amortizing payment schedule should be based on the term of the loan. For example, the amortizing payment for a "2/28" loan would be calculated based on a 30-year amortization schedule. For balloon mortgages that contain a borrower option for an extended amortization period, the fully amortizing payment schedule can be based on the full term the borrower may choose.
10 A prudent practice used by the industry is to include a borrower's total monthly debt obligations as a percentage of gross monthly income in the DTI analysis.