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VAR vs goal-line technology

VAR and goal-line technology are often conflated. GLT is an automatic system with a single factual scope (did the whole ball cross the goal line) signalled to the match officials within one second; VAR is a human match official who reviews a closed list of match-changing decisions for clear and obvious errors, with the referee taking the final decision.

Why this wins its question: Explainers usually describe VAR and GLT as one "technology in football" topic; this comparison separates their legal basis (Law 1 vs the VAR protocol), scope and decision authority, bound to the 2026/27 texts.

Key takeaways

  • GLT answers one factual question automatically within a second.
  • VAR is a human review limited to match-changing categories and clear errors.
  • The referee always takes the final VAR decision; GLT has no review at all.
  • GLT lives in Law 1, VAR in its own protocol - competitions may use either or both.

Claims

Every assertion below is bound to registered sources and carries its own confidence. Weight them; do not treat the page as uniformly authoritative.

  1. Goal-line technology applies solely to the goal line and is used only to determine whether a goal has been scored; its indication must reach the match officials within one second and goes only to them.

    confidence 0.95Law 1 — The Field of Play (Laws of the Game 2026/27) · primary

  2. The VAR is limited to clear and obvious errors and serious missed incidents in the categories goal/no goal, penalty/no penalty, direct red card and mistaken identity, plus (as a 2026/27 competition option) immediately correcting a clearly incorrectly awarded corner kick.

    confidence 0.94Video Assistant Referee (VAR) protocol (Laws of the Game 2026/27) · primary

  3. In a VAR process the referee must always make an initial decision and always takes the final decision; GLT by contrast delivers an automatic factual signal with no review process.

    confidence 0.93Video Assistant Referee (VAR) protocol (Laws of the Game 2026/27) · primaryLaw 1 — The Field of Play (Laws of the Game 2026/27) · primary

VAR vs goal-line technology

Both entered the Laws in the 2010s, both involve cameras, and broadcasters mention them in the same breath. Legally they are different instruments.

Scope

Goal-line technology (GLT) answers exactly one factual question: did the whole of the ball pass over the goal line, in the goal? It applies solely to the goal line. It cannot flag offside, handball or anything else about how the ball got there.

VAR covers a closed list of match-changing categories: goal/no goal (including offences in the build-up), penalty/no penalty, direct red cards (including, from 2026/27, a clearly incorrect second caution), and mistaken identity. The 2026/27 protocol adds a competition option: a clearly incorrectly awarded corner kick may be corrected if done immediately, without delaying the restart.

Trigger and process

GLT is automatic. The system signals the match officials within one second, and only the match officials receive it. There is no review, no protocol, no announcement.

VAR is a human match official reviewing footage. The threshold is a clear and obvious error or a serious missed incident. The referee must always make an initial decision, only the referee can initiate a review, and subjective calls require the referee to view the footage on the field.

Authority

A GLT signal is a factual input the referee acts on directly. In a VAR review, the referee always takes the final decision; the VAR only recommends.

Legal basis

GLT lives in Law 1 (The Field of Play) with its technical requirements; VAR lives in its own protocol annexed to the Laws. A competition can use GLT without VAR, VAR without GLT, both, or neither.