The basics
What a full documentation non-QM loan is
Most home loans follow the rules of Fannie Mae, Freddie Mac or a jumbo program. A borrower who documents income the standard way, with pay stubs and W-2s or with tax returns, but falls outside those rules has programs built for that. Lenders call them non-QM, because they sit outside the federal definition of a qualified mortgage.
The documents are the same ones a conventional loan asks for. What differs is the rule that did not fit: debts that are high compared with income, one year of income history instead of two, a recent bankruptcy or foreclosure, a loan larger than conventional limits allow, an interest-only or longer-term payment, or a home that conventional programs will not finance.
The lender still verifies your income, assets, credit and the home, and for a home you live in it must make a good-faith decision that you can repay the loan. These loans are not sold to Fannie Mae or Freddie Mac, so each program sets its own rules.