What is a foul in basketball?

Updated October 2026 · How we answer

Short answerA foul in basketball is an illegal action by a player that involves personal contact or unsportsmanlike behavior. It results in penalties such as free throws for the opponent or possession of the ball.

Types of Fouls

Personal fouls include contact like pushing, holding, or blocking. A common example is a shooting foul, where a defender illegally contacts a shooter, resulting in free throws.

Technical fouls are for unsportsmanlike conduct, such as arguing with officials or taunting. They award the opposing team free throws and possession.

Flagrant fouls are excessive or violent contact; they can lead to ejection and free throws plus possession.

  • Personal foul: contact during play
  • Shooting foul: contact on a shooter
  • Technical foul: conduct violation
  • Flagrant foul: excessive contact
  • Team foul: cumulative fouls leading to bonus free throws

Penalties and Team Fouls

When a team reaches a certain number of fouls in a period (usually 5 in the NBA, 7 in FIBA), the opposing team enters the bonus. Then, every subsequent foul results in free throws.

In the NBA, a player fouls out after 6 personal fouls. In FIBA and NCAA, it's 5 fouls.

Fouls can also be committed by the offense, such as an illegal screen or charging.

Impact on the Game

Fouls disrupt the flow and can give the opponent easy points. Teams often strategize by committing intentional fouls to stop the clock or send poor free-throw shooters to the line.

Referees use judgment to determine if contact is incidental or a foul. Consistency in calling fouls is a key part of officiating.

Common mistakes

  • Thinking all contact is a foul; incidental contact is often ignored.
  • Believing a foul always results in free throws; only shooting fouls or bonus situations do.
  • Assuming technical fouls are only for players; coaches and bench personnel can also receive them.
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