2026 FIBA Basketball Rule Changes: Summary of New and Unchanged Rules
- by Jane Victoria
-
The 2026 FIBA basketball rules took effect on 1 October 2026, and the headline change is simple: the unsportsmanlike foul is gone, replaced by a disruptive foul and a flagrant foul. Technical fouls now come in two categories too. Here's a friendly, two-minute guide to what's new, what stayed the same, and what it means on the court.
The short version:
- The unsportsmanlike foul is replaced by disruptive and flagrant fouls.
- Technical fouls split into Category 1 (counts towards ejection) and Category 2 (doesn't).
- The "act of shooting" has a clearer start and finish.
- Video replay covers more situations, where replay equipment is used.
- Socks no longer have to be visible, and courts get more freedom with line colours.
What Changed in the 2026 FIBA Rules?
Disruptive and flagrant fouls
Under the old rules, two unsportsmanlike fouls (or two technicals, or one of each) meant a player was thrown out of the game. FIBA says that was overly strict, so it split the foul by how serious it is. Only the serious one now leads to ejection.
| Disruptive foul | Flagrant foul | |
|---|---|---|
| What it is | Illegal contact that isn't flagrant, but disrupts the flow of the game | Contact that goes against the spirit of fair play |
| Examples | A defender grabbing to stop a fast break without playing the ball, or fouling to stop the clock at the end of a quarter | A reckless or dangerous act, contact that isn't a legitimate basketball play, or excessive hard contact |
| Counts towards ejection? | No | Yes |
| Penalty | Free throws, then a throw-in | Free throws, then a throw-in |
A disruptive foul also covers illegal contact from behind or the side on a player with a clear run to the basket. Why it matters: a tactical "take" foul still costs you free throws and possession, but it no longer pushes a player towards ejection on its own.
Technical fouls: Category 1 vs Category 2
Technical fouls are now sorted by seriousness.
| Category 1 | Category 2 | |
|---|---|---|
| Type | Behaviour | Administrative |
| Examples | Disrespecting officials or opponents, taunting, waving a hand near an opponent's eyes, excessive elbow swinging, faking a foul | Delaying the game, hanging on the ring, goaltending the last free throw |
| Counts towards ejection? | Yes | No |
A player is ejected for two Category 1 technicals, two flagrant fouls, or one of each. Why it matters: a delay-of-game technical no longer puts a player on the road to ejection, but a pair of behaviour technicals still will.
A clearer "act of shooting"
FIBA tightened the definition because players were increasingly manipulating situations to draw shooting fouls. On jump shots, the act of shooting now starts when the player begins moving the shoulders and ball upwards towards the basket. On drives, it starts once the player has gathered the ball and continues into the shot. A player generally has to be in the frontcourt to be "shooting", with exceptions at the end of a quarter or shot clock. Why it matters: fewer shooting fouls awarded from contact that happens before a real shot starts.
More video replay
Where replay equipment is used, referees can now review whether goaltending or interference was called correctly at any time after a foul, and review throw-in fouls late in a game. Why it matters: fewer missed calls that change the score.
Socks, court lines and signals
Socks no longer have to be visible, and courts can use more colours for lines, as long as boundary lines match each other and paired markings match on both halves. There are also new referee signals for delay of game, disruptive fouls and flagrant fouls, plus new scoresheet markings.
What Didn't Change in the 2026 FIBA Rules?
FIBA's summary lists only the specific articles above as changed, so the rest of the rulebook carries over. That includes:
- Five players a side.
- Five fouls and you're out. A player who commits a fifth foul must leave the game, and disruptive fouls still count towards it.
- The core game structure, including four 10-minute quarters and the 24-second shot clock.
- Uniform basics: matching shirts and shorts, shirts tucked in, and numbers 0, 00 and 1 to 99 only.
- Dribbling. The double dribble rule was reworded for clarity, but the principle is the same.
How the 2026 FIBA Rule Updates Impact Players, Coaches and Fans
- Players: you can still be penalised for tactical fouls, but one disruptive foul won't end your night.
- Coaches: behaviour technicals are now the ones to watch, because they count towards ejection.
- Fans: expect a few new referee signals, and more situations that can be reviewed in close games where replay is available.
One important note: the rules took effect worldwide on 1 October, but local competitions don't always switch on the same day. The NBL has said it's adopting them for 2026-27, while junior and domestic associations make their own call. Check with your own competition.
FIBA Uniform Requirements in 2026
| Item | What the 2026 rulebook says |
|---|---|
| Shirts and shorts | Same dominant colour front and back, with shorts ending above the knee |
| Sleeves | Must end above the elbow, and long sleeves aren't permitted |
| Tucking | Shirts must be tucked in (all-in-ones are allowed) |
| Socks | Same dominant colour for the whole team, and no longer required to be visible |
| Numbers | Plain, contrasting colour, front and back, using 0, 00 and 1 to 99 only |
| Shirt sets | Teams need at least two sets, and the first-named (home) team wears light-coloured shirts |
| Accessories | Undershirts, compression gear, headbands and wristbands must be the same solid colour across the team |
Frequently Asked Questions
When do the 2026 FIBA basketball rules start? They took effect on 1 October 2026, although local competitions may adopt them on their own timetable.
What is a disruptive foul in FIBA? It's illegal contact that disrupts the flow of the game without being flagrant, such as stopping a fast break or stopping the clock. It earns free throws and a throw-in but doesn't count towards ejection.
What's the difference between a Category 1 and Category 2 technical foul? Category 1 technicals are behavioural (disrespect, taunting, faking a foul) and count towards ejection. Category 2 technicals are administrative (delaying the game, hanging on the ring) and don't.
What stayed the same in the 2026 FIBA rules? Five players a side, five fouls to foul out, the core game structure, and the basic uniform requirements all carry over.
Are there uniform requirements under FIBA rules? Yes. Shirts and shorts must match in dominant colour, shirts are tucked in, numbers are 0, 00 and 1 to 99, and teams carry two sets of shirts.
Are there new FIBA rules regarding player uniforms or gear? One: socks no longer have to be visible, though they must still be the same dominant colour across the team.
Can a FIBA team use a three-digit jersey number? No. FIBA allows numbers 0, 00 and 1 to 99 only.
Kit Your Team Up for the New Season
Whatever rules your competition plays under, a good uniform starts with matching colours, clear numbers and a design your team is proud of. C2C Sport specialises in custom basketball uniforms: you can browse the Basketball Collection for ready-made ideas, explore custom basketball uniforms for your squad, or build your own look in the Design Your Own tool and preview it in 3D before you order. Check your association's uniform rules before you finalise a design.
