College football eligibility used to be a simple sentence: four seasons of competition within five calendar years. It hasn’t been simple in a while. Between the four-game redshirt rule, the medical hardship waiver, the COVID-19 blanket year, the transfer portal, the graduate transfer exception, and a wave of lawsuits over junior-college years, the question “how many years does this player have left?” now requires a flow chart — and the answer can change mid-season.
The framework still starts with the five-year clock. A player’s eligibility clock starts the moment he enrolls full-time at a four-year school, and within that five-year window he can play four seasons. Everything else — redshirts, waivers, extra years — is a way of pausing that clock or getting a season back. Understanding the base rule makes all the exceptions legible.
The chart below covers the core rules, the ways players extend eligibility, and the key dates that govern it all. Take a look, then we’ll get into the pending changes that could rewrite the whole system.
COLLEGE FOOTBALL
College Football Eligibility, Explained
The five-year clock, the four seasons, and every way to stretch them
CLOCK
5 years
From first enrollment
REDSHIRT
4 games
Or fewer to preserve
TRANSFERS
Unlimited
Immediate eligibility since 2024
The core rules
What every player starts with
| Rule |
How it works |
| The 5-year clock |
Starts at full-time enrollment at any four-year school; a player has 5 calendar years to use 4 seasons of competition |
| Four seasons |
Any season in which a player competes in more than 4 games counts as one of the 4 |
| Redshirt (the 5th year) |
A season with 4 or fewer games played does not count — the ‘redshirt year’ — so a player can spread 4 seasons over 5 years |
| Academic eligibility |
Full-time enrollment, minimum GPA, and progress-toward-degree benchmarks (40/60/80% by years 3/4/5) required each term |
| Initial eligibility |
High school core courses, GPA, and NCAA Eligibility Center certification to compete as a freshman |
| Transfers |
One-time transfer without sitting out (since 2021); unlimited transfers with immediate eligibility if academically eligible (since 2024) |
| Graduate transfers |
A player who has graduated may transfer and play immediately, still within the 5-year clock |
Ways to extend eligibility
How players end up with 5, 6, or 7 years
| Path |
What it grants |
Requirements |
| Standard redshirt |
A 5th year to play 4 seasons |
Play 4 or fewer games in a season |
| Medical hardship waiver |
A season back |
Injury before the midpoint of the season, played in 30% or fewer of games, medical documentation |
| COVID-19 year (2020) |
One free season for anyone on a roster in 2020 |
Automatic; the last COVID-year players exhaust eligibility around 2025-26 |
| Legal / hardship waivers |
Case-by-case additional year |
NCAA review; used for family emergencies, mental health, and program disruptions |
| JUCO / non-D-I years |
Historically counted against the 4 seasons; challenged in court |
Following the 2024-25 Diego Pavia ruling, players have sought to have JUCO seasons excluded — the NCAA granted a blanket waiver for 2025-26 and litigation continues |
| Military / church mission |
Clock paused during service |
Documented service; clock resumes on return |
Key dates
The calendar that governs it
| Date / window |
What happens |
| Season game 5 |
The redshirt threshold — a 5th appearance burns the year |
| Winter transfer portal window |
Opens after the regular season for roughly 20 days (dates set annually by the NCAA) |
| Spring transfer portal window |
Opens in April for roughly 10 days |
| Aug. 1 / start of fall term |
Academic eligibility certified for the coming season |
| NCAA convention (January) |
Where eligibility rule changes are typically voted on |
Portal window dates change year to year; check the NCAA’s current calendar.
ELIGIBILITY FACTS
Why 6th- and 7th-year players exist
Stack a redshirt, a COVID year, and a medical waiver and a player enrolled in 2019 could still be active in 2025 — the COVID cohort is the last of it.
The five-year clock is the hard limit
Waivers add seasons; only a documented service or hardship pauses the clock itself.
Eligibility is now a legal question
Court rulings on JUCO years, NIL, and employment status are reshaping the rules faster than the NCAA’s rulebook can be updated.
What Could Change Next
Three pressures are pushing the system toward a rewrite. First, litigation: the Pavia ruling opened the door for JUCO seasons not to count, and other suits argue the five-year clock itself is an unlawful restraint. Second, the NCAA has discussed a straightforward five-seasons-in-five-years model that would eliminate the redshirt as a concept — everyone gets five years and can play in all of them. Third, the House settlement’s revenue-sharing era makes roster spots more valuable, which increases pressure to give schools and players certainty. Any of these could arrive by the 2027 season; for now, the four-in-five framework and its exceptions still govern.
The Bottom Line
A college football player has five years to play four seasons, and every other rule — the redshirt, medical waivers, the COVID year, JUCO litigation — is a way of adding a season or pausing the clock. The five-year limit is the wall; the seasons are what get stretched. For the most common tool players use to preserve a year, see our guide to how the redshirt rule works, and for the injury version, how a medical redshirt works.
