The LIHTC student rule and its five exceptions
A LIHTC unit occupied entirely by full-time students doesn't count as a low-income unit unless an exception applies. IRC 42(i)(3)(D) lists five: a student receiving assistance under title IV of the Social Security Act (such as TANF), a student who was previously in foster care, a student enrolled in a qualifying job training program, single parents and their children who aren't anyone else's tax dependents, and married students filing a joint return. A household with at least one member who isn't a full-time student isn't affected.
The student rule exists to keep tax credit apartments from becoming subsidized student housing. It’s also one of the most common compliance errors, and agencies report it on Form 8823 line 11l (“Low-income units occupied by nonqualified full-time students”). Here is the rule exactly, and how to apply it.
The rule
A unit isn’t a low-income unit if all of its occupants are full-time students, unless an exception applies (IRC 42(i)(3)(D)). The statute’s text lists the exceptions in two groups.
Group 1: any one occupant who is
- a student receiving assistance under title IV of the Social Security Act (cash assistance under TANF and related programs);
- a student who was previously under the care and placement responsibility of the state agency administering a plan under part B or part E of title IV (foster care); or
- enrolled in a job training program receiving assistance under the Job Training Partnership Act or a similar federal, state or local law (WIOA programs are the modern equivalent).
Group 2: a household made up entirely of full-time students who are
- single parents and their children, where the parents aren’t dependents of another individual and the children aren’t dependents of anyone other than a parent (dependents as defined in section 152, with certain subsections disregarded); or
- married and filing a joint return.
How to apply it
Ask four questions in order:
| Question | If yes | If no |
|---|---|---|
| 1. Is every household member a full-time student, for 5 calendar months of the year or expected to be? | Go to question 2 | Rule doesn’t apply; the household can qualify on income |
| 2. Does any member receive title IV assistance, have been in foster care, or attend a qualifying job training program? | Exception met (Group 1) | Go to question 3 |
| 3. Are they single parents with their children, none claimed as anyone else’s dependent (children only by a parent)? | Exception met (Group 2) | Go to question 4 |
| 4. Are they married and filing (or entitled and planning to file) a joint return? | Exception met (Group 2) | Unit can’t be a low-income unit |
Examples
| Household | Result |
|---|---|
| Two roommates, both full-time graduate students, unmarried | Ineligible; no exception |
| Same two, one switches to part-time | Eligible to income-qualify; not all full-time |
| Married couple, both full-time undergraduates, file jointly | Exception 5 |
| Married couple, both full-time students, file separately | Ineligible unless another exception applies |
| Single mother, full-time student, with a 7-year-old (also a student, in second grade), neither claimed by the grandparents | Exception 4 |
| Same household, but the mother is claimed as a dependent by her parents | Ineligible unless another exception applies |
| 20-year-old former foster youth, full-time at community college, living alone | Exception 2 |
| Full-time student receiving TANF | Exception 1 |
| Adult full-time student and her elderly father, who doesn’t attend school | Eligible to income-qualify; father isn’t a student |
Definitions that matter
- Full-time student. The IRS looks to section 152(f)(2): a student during each of 5 calendar months during the calendar year at an educational organization that normally maintains a regular faculty and curriculum and an enrolled student body. Full-time is what the school considers full-time. The 5 months don’t have to be consecutive.
- K-12 counts. Elementary and secondary schools are educational organizations, so school-age children are students.
- Dependents. The single-parent exception turns on dependency under section 152, with specific subsections disregarded as the statute lists. Get the tax return or a certification.
Documentation
For each household that answers yes to question 1:
- A student status certification signed by every adult member, and school verification of enrollment status.
- Evidence for the exception claimed: TANF award letter; foster care verification from the state agency; job training program enrollment letter; tax return or certification for married-joint or single-parent status.
- A recertification process that asks about student status changes during the year, since a household that becomes all full-time students mid-year can lose qualification.
Many state agencies publish their own student status forms, and owners in 100% low-income buildings with an annual recertification waiver still have to track student status changes.
Questions managers get most
Does a household of one full-time student and one part-time student qualify? Yes, if the part-time student isn’t full-time under the school’s standard for 5 months of the year. The household isn’t made up entirely of full-time students.
What about a high school senior turning 18 who lives with a parent who works? The parent isn’t a student, so the household isn’t an all-student household.
A student who receives SNAP but not TANF? SNAP isn’t assistance under title IV of the Social Security Act, so it doesn’t meet exception 1 on its own. TANF is the common title IV program.
Summer breaks? The test counts calendar months in which the person is a full-time student during the year. A student enrolled full-time for the spring and fall terms will normally reach 5 months.
Online programs? Treatment depends on whether the school is an educational organization with a regular faculty and curriculum and enrolled students, and what it considers full-time. Get the school’s certification of status.
What if the household’s status changes at mid-year? Owners in most states must act when they learn of it, not wait for recertification. If an exception can’t be documented, the unit stops counting, and the agency reports it on Form 8823 line 11l.
What isn’t changing
Simplifying the student rule is part of the Affordable Housing Credit Improvement Act. That bill is pending in Congress and is not law as of October 30, 2026 (S. 1515). The rule above is the rule in force.
For renters
If you’re a student looking for a tax credit apartment, the question isn’t only your income. Use the eligibility check, and read how to qualify for a tax credit apartment. If you think one of the exceptions fits you, bring the proof to your application.
Questions people ask
Does one full-time student in the household make it ineligible?
No. The rule applies only when every member of the household is a full-time student. If any member, including a child, isn't a full-time student, the household isn't a full-time student household and the rule doesn't apply. Children in K-12 school count as students, which is how families with only school-age children and student parents can be caught.
Who counts as a full-time student?
The IRS uses the definition in section 152(f)(2): an individual who, during each of 5 calendar months of the year, is a full-time student at an educational organization with a regular faculty and student body. "Full-time" is set by the school's own standard. Elementary and high school students count.
Can a household become ineligible after moving in?
Yes. Student status is checked at move-in and at each recertification. If a household becomes all full-time students and no exception applies, the unit stops qualifying, so many owners ask about student status during the year, not just at recertification.
Is the student rule the same in Section 8?
No. The HUD Section 8 student rule (24 CFR 5.612) is a different test, focused on individual students' eligibility and parental income. A household can pass one and fail the other.