The list of eligible deferments is short and does not follow intuition. In-school deferment while enrolled at least half-time at an eligible institution. A six-month post-enrollment grace period is separately provided on Direct Subsidized and Unsubsidized Loans and functions like a deferment for interest purposes but is not one legally. Graduate fellowship deferment. Rehabilitation training program deferment. Active-duty military service deferment plus 13 months following its end. A cancer treatment deferment that also covers the six months after treatment. Dislocated military spouse deferment for up to 180 days aggregate. Unemployment deferment. Economic hardship deferment. Loans made under the older Federal Family Education Loan and Perkins Loan programs carry additional deferment types that are not available on Direct Loans.
Two of those deferments carry an expiration date. For loans made on or after July 1, 2027, 20 USC 1087e(f)(7) removes the unemployment and economic-hardship deferments. The statute keys the sunset to when the loan is made; the regulation keys it to when the loan is disbursed. Both are current codified law, and they can produce slightly different answers for a borrower whose loan was made in one period and first disbursed in another. Older loans keep the deferments; new loans taken on or after the sunset do not.
Interest treatment splits along the subsidized line. During a deferment on a Direct Subsidized Loan the federal government pays the interest, so the balance does not grow. During a deferment on a Direct Unsubsidized Loan and on a Direct PLUS Loan the interest accrues at the ordinary rate, and 34 CFR 685.202(b) capitalizes the accrued interest at the end of the deferment, adding it to the loan's principal. From that point forward interest accrues on the higher balance. The one category that overrides this split is the cancer treatment deferment, which by statute does not accrue interest on any loan type.
Deferment is unavailable while a loan is in default. A defaulted borrower needs to cure the default before any deferment becomes available, and rehabilitation payments during a cure are separate from deferment.
A deferment is granted for a period and can be requested again. Unemployment and economic-hardship deferments are capped at three years each in the aggregate on Direct Loans. In-school and graduate-fellowship deferments run for as long as the qualifying condition continues. Documentation requirements vary by category and are administered by the servicer.