What counts as withdrawing is broader than dropping out on purpose. For a credit-hour program, a student has withdrawn if they do not complete all the days in the period they were scheduled to complete; for a clock-hour program, if they do not complete all the clock hours and weeks of instructional time scheduled. Programs delivered in modules have their own trigger: a student in a standard or nonstandard term is treated as withdrawn if they are not scheduled to begin another course within the period for more than 45 calendar days after the module they stopped attending ends, unless they are on an approved leave of absence. The statute allows an institution with a formal policy to treat a leave of up to 180 days in any 12-month period as not a withdrawal, and to run the calculation from the original withdrawal date if the student does not return.
The percentage completed is measured in days, and two kinds of days are excluded. For a credit-hour program the school divides the calendar days completed as of the withdrawal date by the total calendar days in the period. Scheduled breaks of at least five consecutive days come out of both the top and bottom of that fraction, as do days on an approved leave of absence. A clock-hour program uses scheduled clock hours instead, fixed by the schedule the institution established before the student's first class. The earned percentage then follows the 60 percent rule exactly as written: the earned share equals the completed share where the withdrawal date falls on or before completion of 60 percent of the period, and is 100 percent where it falls after that point. Nothing is prorated after 60 percent, which is why the date matters so much more than families expect.
Who returns what is the part that decides whether a bill arrives. The institution returns the lesser of two amounts: all of the unearned aid, or the unearned percentage applied to "institutional charges", which the regulation defines as tuition, fees, room and board where the student contracted with the institution for it, and other educationally related expenses the institution assessed. The student is responsible for whatever remains after the institution's share. Two reliefs cut that down. A student is not required to return the portion of a grant overpayment equal to or less than 50 percent of the total grant assistance disbursed or that could have been disbursed for the period, and a remaining grant overpayment of $50 or less is not collected either. Amounts the student owes to a loan program are repaid under the loan's own terms rather than immediately, and everything goes back in a fixed order: unsubsidized Direct loans, subsidized Direct loans, Direct PLUS received on the student's behalf, then Pell Grants, Iraq and Afghanistan Service Grants, FSEOG and TEACH Grants.
The clocks, and the disbursement that runs the other way. An institution must return its share as soon as possible and no later than 45 days after the date it determined the student withdrew, and a school not required to take attendance has up to 30 days after the end of the period, academic year or program to make that determination for a student who left without telling anyone. Where the student earned more aid than had been disbursed, the difference is a post-withdrawal disbursement. Grant funds come first, the school may credit outstanding charges on the account, and any grant money not credited must be paid to the student within 45 days. Loan funds in a post-withdrawal disbursement are different: the school must write within 30 days asking the student, or the parent on a parent PLUS loan, to confirm they still want the money, and may only disburse it after that confirmation. A student who owes an overpayment keeps federal aid eligibility for at least 45 days, and keeps it beyond that by repaying in full or entering a repayment agreement with the school or the Secretary.