Champions League format explained: how the competition works

The UEFA Champions League is European football's premier club competition, played each season by teams that earn their place through domestic performance rather than invitation. It begins with summer qualifying rounds, runs through autumn and winter, and ends with a single-match final at a neutral stadium in late spring. Unlike a domestic league, it blends league-style scheduling with two-legged knockout ties, and the trophy is decided on one night rather than across an entire campaign.

Places are distributed according to UEFA's country coefficient, a ranking based on how clubs from each association have performed in Europe over preceding seasons. The strongest leagues send several clubs straight into the main draw, while champions of smaller associations must win their way through the qualifying rounds. Those rounds are deliberately split into two streams (a Champions Path for domestic title winners and a League Path for clubs that finished behind them) so that national champions are not knocked out by wealthier runners-up before the competition proper starts.

Who enters the Champions League and how the place is earned

The 36 clubs in the league phase come in through four doors, and none of them is an invitation. Most of the places are decided by position in the domestic league, and how many teams each country sends depends on UEFA's country coefficient ranking. The reigning Champions League champions and the Europa League champions go straight in, even without a place through their national league. And two extra places, awarded for European performance, go to the two countries that added the most coefficient points in the previous season.

The table above is the 2026/27 access list, and it changes from one season to the next. When the Champions League champions or the Europa League champions have already secured a place through their own league, the spot that's freed up doesn't disappear: it moves down the list and is picked up by the next country. That's how Portugal earned the second direct place in this edition.

The season in one table

Under the 36-club format, every season runs on the same clock: qualifying opens it in July, and the final closes it on a Saturday in late May or early June. The dates shift from one edition to the next, but the order of the phases and the months they fall in stay the same. The reasoning behind each date is in our guide to the Champions League calendar.

The path for clubs that don't enter directly

Under the 2026/27 regulations, seven of the 36 places are not handed out by league position: they are decided on the pitch, in July and August, through two paths that never cross. The Champions Path brings together national champions from smaller countries and hands out five places. The League Path brings together runners-up and third-placed teams from mid-ranked leagues and hands out two. The split exists so that a national champion is not knocked out by a richer runner-up before the competition proper begins, and whoever loses along the way does not go home empty-handed: they drop into the Europa League or the Conference League, depending on the stage.

The single league phase

Since the format overhaul of the mid-2020s, the old group stage has been replaced by a single league phase of 36 clubs in one combined standings table. Each team plays eight matches against eight different opponents, four at home and four away, with fixtures drawn from four seeding pots so every side meets a spread of stronger and weaker rivals. Three points for a win, one for a draw. A club can therefore finish above a team it never actually faced, and table position becomes the currency that decides everything afterwards.

How the draw sets up the eight matches

The league phase draw splits the 36 clubs into four pots of nine, formed by each club's coefficient at the start of the season, with the reigning champions seeded as the top of pot 1. Each team is drawn against two opponents from every pot, one at home and one away, which completes the eight matches and explains why nobody plays everybody. Two rules protect the draw: clubs from the same country do not face each other, and no team can draw more than two opponents from any other single country.

The calendar has written rules too. In principle, no club plays more than two matches running at home or away, and every team plays one match at home and one away in the first two rounds and in the last two. UEFA can make an exception when the schedule gets tight.

The top eight advance directly to the round of 16. Teams ranked ninth to twenty-fourth enter a two-legged knockout playoff, with higher-placed sides seeded and hosting the second leg; the winners complete the last 16. Clubs finishing twenty-fifth or lower are eliminated outright, with no consolation route into the Europa League. From the round of 16 onwards, ties are played home and away over 180 minutes and settled on aggregate, then extra time and penalties, until the final, a single match on neutral ground.

What decides position in the table

When two clubs finish the league phase level on points, UEFA does not use the head-to-head result, not even when the two sides have played each other, which most of the time they have not. It looks first at goal difference, then at goals scored, then at goals scored away from home, which no longer settle knockout ties but still count here because every club plays four away games. There are ten criteria in a fixed order: after those three come wins and the strength of each club's opponents, and the list ends with disciplinary points and the club coefficient.

How the knockout bracket is set before it starts

The bracket is not drawn from scratch at every round: it is born almost fully formed when the league phase ends, and table position is what fixes everyone's place in it. From ninth to twenty-fourth, teams are paired off by position and meet in the knockout playoff, always one from the top half against one from the bottom half. Whoever finishes in the top eight waits in the round of 16 and already knows which playoff their opponent will come from.

In the round of 16, the top eight also enter in fixed pairs, from first and second down to seventh and eighth, against the playoff winners. In the quarter-finals, whoever finished in the top four decides the game at home; in the semi-finals, only first and second keep that right. And if a top seed falls, whoever eliminated them inherits their place in the bracket, along with the advantage that came with it.

The European Champion Clubs' Cup

The tournament began in the mid-1950s as the European Champion Clubs' Cup, a straight knockout open only to national champions, and Real Madrid won the first five editions. The rebrand to Champions League in the early 1990s introduced group stages and, later, entry for clubs that had not won their leagues, widening the field commercially and competitively. Its identity, though, rests on nights that outlive any format: Manchester United's stoppage-time turnaround in 1999, Liverpool's recovery from three goals down in Istanbul, Barcelona overturning a four-goal deficit at home.

Several old habits still confuse newcomers. Away goals no longer break knockout ties: since the rule was scrapped in the early 2020s, a level aggregate goes to extra time regardless of where the goals were scored. The league phase is not a mini-league in which everyone meets everyone (eight matches out of thirty-five possible opponents). And finishing third in a group no longer drops a club into the Europa League, because there are no groups. Seeding matters more than it appears: table position shapes the bracket and decides who hosts the decisive second leg.

The registered squad and the rules that apply on the pitch

List A has a maximum of 25 players, and eight of those places are reserved for locally trained players, of whom no more than four can have come through another club in the same country. It is the rule that forces a squad worth millions to make room for players who came up through the academy. List B has no cap and is for young players with a long-standing tie to the club, who can be registered over the course of the season.

On the pitch, the IFAB Laws of the Game apply, with a 15-minute half-time interval and five substitutions per team, made in up to three stoppages. A level aggregate score leads to two 15-minute periods of extra time, with a five-minute break before they start, plus a sixth substitution and a fourth stoppage, valid in extra time throughout the knockout phase, final included, and to a penalty shoot-out if the teams are still level.

The rules on cards change once the league phase begins. Before it, a player is suspended every three yellow cards, and every odd number after that. From the first matchday of the league phase, the suspension comes on the fourth yellow card, and every even number after that. A red card rules the player out of the next match in any UEFA club competition, and the disciplinary body can extend the ban.

What each step is worth

Not all of the money follows the table. In every season of the 2024-27 cycle, what UEFA distributes among the 36 league phase clubs is split into three pillars. The first, 27.5%, is paid out as equal starting fees. The second, 37.5%, rewards performance: wins, draws, final league position and every knockout round reached. The third, 35%, is the value pillar, calculated from each country's market and the club's European record before a ball is kicked. League position makes a difference to the accounts through the second pillar, and the bonus for lifting the trophy is only a small part of the total.

Before any of the accounting, UEFA sets aside a share of the pie for clubs that are not even at the party: 7% goes to clubs that do not play in any of the three European competitions, 3% to clubs eliminated in qualifying, and 25 million euros to the Women's Champions League and the Youth League. Of what remains, 93.5% stays with the clubs in the league phases of the three competitions, and 6.5% with UEFA itself. That is why a short qualifying campaign still earns money, and why even a club that did not get in receives something.

Winning brings more than the trophy itself. The champions enter the following season's competition automatically, even without qualifying domestically, and face the Europa League winners in the UEFA Super Cup. Prize money and coefficient points strengthen both club and country for years afterwards. That is the deeper logic of the design: reward sustained excellence across a long campaign, while preserving the possibility that a single night, a single deflection or a single save decides who actually lifts the cup.