Football Rules Explained: A Clear Guide to How the Game Works

Football is played by two teams trying to score more goals than the opposition. The basic idea is simple, but several laws control how players may use the ball, where they can stand, and how play restarts after an interruption. This explanation covers the main association football rules used in competitions around the world.

The basic objective and match structure

Each team normally has 11 players on the pitch, including one goalkeeper. A match is played over two 45-minute halves, with a half-time interval. The referee may add stoppage time to each half for delays caused by injuries, substitutions, time-wasting, goal celebrations and video reviews.

The team that scores the most goals wins. A goal counts when the entire ball crosses the goal line between the posts and beneath the crossbar, provided the attacking team has not committed an offence. If the scores are level, the result depends on the competition. League matches may finish as a draw, while knockout games can use extra time and a penalty shootout.

Players may use any part of their body except their hands and arms to control or move the ball. The goalkeeper has special permission to handle the ball inside their own penalty area, subject to restrictions such as the back-pass rule.

The pitch, players and equipment

The rectangular pitch has two goals, touchlines along the sides and goal lines at each end. Each goal is surrounded by a penalty area. The penalty spot is 11 metres from the goal line, and the goal area marks the smaller box near the goal.

Players must wear a shirt, shorts, socks, shin guards and suitable footwear. Jewellery and equipment that could endanger another player are not permitted. The goalkeeper must wear colours that distinguish them from both teams and the match officials.

A team can make substitutions according to the competition regulations. Many competitions allow up to five substitutes during a match, often within a limited number of substitution windows, but the exact allowance can vary. A player who has been replaced generally cannot return unless the competition specifically uses return substitutions.

Offside explained

Offside is one of the most misunderstood football laws. A player is in an offside position if, at the moment a teammate plays or touches the ball, the player is nearer to the opponents’ goal line than both the ball and the second-last opposing player. Being level with the second-last defender or level with the ball is not offside.

Position alone is not an offence. The player is penalised only if they become involved in active play, such as receiving the ball, challenging an opponent, interfering with an opponent, or gaining an advantage from a rebound or save.

There is no offside offence directly from a goal kick, throw-in or corner kick. If the defending team deliberately plays the ball, an attacker who was previously in an offside position may be allowed to continue, although a deliberate save does not normally create the same exception.

Fouls, free kicks and disciplinary cards

A direct free kick is awarded for offences such as kicking, tripping, pushing, striking, holding, handball or making a careless, reckless or excessive challenge. A direct free kick can be taken straight into the opponent’s goal. If a defending player commits one of these offences inside their own penalty area, the referee may award a penalty kick.

An indirect free kick requires another player to touch the ball before a goal can count. It is commonly used for technical offences, including dangerous play, obstructing an opponent without contact, or a goalkeeper handling the ball after deliberately receiving it from a teammate’s kick.

A careless foul may lead to a free kick without a card. A reckless challenge can result in a yellow card, while serious foul play, violent conduct or denying an obvious goal-scoring opportunity may bring a red card. A player shown a red card must leave the field, and their team normally continues with one fewer player.

Two yellow cards in the same match also result in a red card. A yellow card is a caution, not a temporary dismissal, unless a particular competition uses a separate sin-bin system.

Penalty kicks and penalty shootouts

A penalty kick is awarded when a player commits a direct-free-kick offence inside their own penalty area. The ball is placed on the penalty mark, and only the goalkeeper defends the kick. Other players must remain outside the penalty area, behind the penalty mark and at least 9.15 metres from the ball until it is kicked.

The kicker must kick the ball forward and may not touch it again until another player has touched it. The goalkeeper must have at least part of one foot touching, in line with or behind the goal line when the ball is kicked. The referee can order a retake or apply another sanction if the relevant conditions are broken.

A penalty shootout is different from an in-match penalty. It is used to decide a tied knockout match after the permitted playing time, and players take alternating kicks. The shootout continues until one team has an unbeatable advantage, with further rounds used if the scores remain level.

How play restarts

A kick-off starts each half and restarts play after a goal. The ball must be stationary in the centre circle, and the opposing players must remain outside the circle until the kick is taken.

A throw-in is awarded when the whole ball crosses the touchline. The player takes it with both hands from behind and over the head, while keeping part of each foot on or outside the touchline. A goal cannot be scored directly from a throw-in.

A goal kick is given when the attacking team last touches the ball before it crosses the defending team’s goal line without entering the goal. A corner kick is awarded when the defending team last touches the ball before it crosses its own goal line. A goal can be scored directly from a corner kick, but not directly from a goal kick into the same team’s goal.

Referees, VAR and advantage

The referee has authority to enforce the Laws of the Game from the pre-match inspection until the match ends. Assistant referees help with touchlines, offside decisions and other incidents, while the fourth official manages substitutions and technical-area matters.

Video Assistant Referee technology is used only in competitions that have adopted it. VAR can review clear and obvious errors or serious missed incidents involving goals, penalty decisions, direct red cards and mistaken identity. The on-field referee remains responsible for the final decision.

The referee may allow play to continue after an offence if stopping the game would benefit the team that was fouled. This is called advantage. If the expected benefit does not develop quickly, the referee may return to the original offence and award the appropriate restart.

Common football rule questions

Can a goalkeeper pick up a back pass?

A goalkeeper cannot handle the ball after it has been deliberately kicked to them by a teammate, or after receiving it directly from a teammate’s throw-in. Handling the ball in these circumstances usually results in an indirect free kick.

Can a player be offside in their own half?

No. A player cannot be penalised for offside while in their own half of the field. The position is judged when the teammate plays the ball, not when the attacker receives it.

What happens if the ball hits the referee?

Play is restarted with a dropped ball if the ball touches the referee and remains in play but a team begins a promising attack, the ball goes directly into the goal, or possession changes. Otherwise, play may continue.

Does the ball have to cross the whole goal line?

Yes. The entire ball must pass over the goal line. If any part of the ball remains above or on the line, it is not a goal.