Added time calculation football: how referees work it out

The board goes up on the touchline and it reads seven. One end of the ground groans, the other end stands. Almost nobody in either end could explain where the seven came from, and that gap between what the figure is and what supporters assume it to be produces more argument than any other piece of match administration. The added time calculation football referees carry out is not an estimate reached on the whistle. It is a ledger, kept through the half, of playing time that was taken away from the ninety minutes.

Here is the short version, before the detail. Law 7 of the IFAB Laws of the Game requires the referee to make an allowance in each half for all playing time lost in that half, and it lists the reasons that qualify: substitutions, the assessment or removal of injured players, wasting time, disciplinary sanctions, medical stoppages permitted by the competition rules such as drinks and cooling breaks, delays relating to video checks and reviews, and any other cause including a significant delay to a restart, with goal celebrations named as the obvious example. The intervals are totalled. At the end of the final minute of the half, the fourth official shows the total. The Laws then say something the board itself never manages to communicate: what is shown is the minimum, the referee may increase it, and the referee may not reduce it.

Everything that follows is a working out of those two sentences.

• 2Halves in which an allowance must be made
• 15Minutes in the half-time interval
• 10Seconds a substituted player has to leave the field
• 1Minutes an assessed player must stay off after the restart

Structural provisions of the Laws of the Game, not match statistics.

What the fourth official's board is actually reporting

The electronic board is a display device and nothing more. It carries a number handed to it, and the person who decides that number is the referee in the middle. In the closing seconds of the forty-fifth or ninetieth minute you will usually see one of two things: the referee touching an earpiece and speaking briefly, or the fourth official raising a hand to acknowledge. That exchange is the whole ceremony. There is no committee, no algorithm running in a truck outside, and no third party with a veto.

What the board reports is a whole number of minutes, and that rounding matters more than people think. A referee whose ledger reads three minutes and forty seconds is not able to display three minutes and forty seconds, because the board takes integers. Rounding down and then playing the remainder is entirely consistent with the Laws, since the displayed figure is a floor. Rounding up and stopping exactly on the number is also consistent, because a referee may always play more than the minimum and the extra forty seconds have simply been given in advance. Two referees with identical ledgers can therefore show different figures for the same half without either being wrong, which is one of several reasons that comparing boards across matches tells you less than it appears to.

The board also has a second, quieter function. It is a public commitment. Once seven is displayed, the referee has removed the option of blowing up at ninety-four because the score suits somebody, and has invited every viewer to hold them to at least that much. The one-way ratchet in the Laws, increase but never reduce, exists to protect exactly that commitment.

The categories Law 7 lists, and what each one really costs

The list in Law 7 is not decorative. Each entry names a recognisable kind of dead time, and each behaves differently in practice.

Substitutions. A change costs from the moment play stops until the moment it restarts. Historically this was the softest category in the whole ledger, because a departing player who ambled to the far corner flag could burn most of a minute while the referee's watch ran, and the reward for doing so was reliably larger than the punishment. The 2026/27 amendment to Law 3 is a direct answer to that: the player coming off must be off the field within ten seconds of the substitution board being displayed, or of the referee's signal where no board is used, and if they are not, their replacement waits until the first stoppage after a minute of running time has elapsed following the restart. The team that dawdles now plays a minute short.

Assessment or removal of injured players. Genuine injury is not a discipline problem and the Laws do not treat it as one. The time is measured and returned. What the 2026/27 package added is a condition on the player rather than on the clock: a player who receives on-field assessment, or for whom play is stopped, must leave the field and stay off it for one minute of running time once play has restarted. A side that pauses the match for treatment therefore plays a man light for that minute, which removes the tactical value of a convenient knock without denying treatment to anybody who needs it.

Wasting time. This is the only category that is fully discretionary. The referee assesses how much playing time the offending side has removed and returns it, and unlike the other entries there is no obvious stopwatch moment to anchor it. Persistent time wasting is also a cautionable offence in its own right, so the ledger entry and the yellow card are separate responses to the same behaviour.

Disciplinary sanctions. A caution costs the walk to the offender, the exchange, the card and the resetting of the wall. A dismissal costs considerably more, because a red card is followed by protest, by a player leaving the field and by a tactical reshuffle the referee cannot hurry. Both are measured from the moment the card situation begins to the moment the ball is back in play.

Medical stoppages permitted by the competition rules. Drinks breaks and cooling breaks are planned interruptions rather than incidents, and their durations are set by the competition rather than improvised. They come back into the half in full.

Delays relating to video checks and reviews. A silent check that resolves in four seconds costs four seconds. An on-field review, with the referee walking to the monitor and back, costs the whole excursion. The important accounting point is that this interval is not counted twice, and a competition that has already priced part of the same stoppage under another heading does not charge for it again.

Any other cause, including a significant delay to a restart. This is the residual clause, and goal celebrations sit inside it. It also catches the pitch invasion, the burst ball, the floodlight failure, the stretcher that takes a while to arrive and the dozen other things a season produces.

Why the minimum can be exceeded, and why that is not a scandal

The single most common complaint about added time is that the referee played more than the board said. Under the Laws, this is not an irregularity. It is the design.

Consider what the board is doing chronologically. It reports the ledger as it stands at the end of the final minute of the half. Play then continues for several more minutes, and those minutes are ordinary football in which ordinary things happen. A side defending a lead makes its last change and the substitution takes half a minute. A goalkeeper goes down. A goal is scored and celebrated in front of an away end. Every one of those events removes playing time from a period that exists specifically to replace playing time removed. If the referee stopped on the displayed number regardless, the added period would leak time exactly as the ninety minutes did, and the whole exercise would defeat itself.

So the referee keeps counting. The ledger does not close when the board goes up; it closes when the half does. This is why the phrase used in the Laws, and increasingly by broadcasters, is minimum additional time, and why a careful commentary team will say "a minimum of four" rather than "four minutes of added time".

The asymmetry is deliberate and worth stating plainly. The referee may add to the displayed figure and may not take from it. A half cannot be cut short because the announced time has produced nothing interesting, and it cannot be curtailed because one side has begun keeping the ball in a corner. If the number was too generous, the referee lives with it.

The one exception that ends a half early, and the one that will not let it end

Two situations sit outside the ordinary arithmetic.

The first is abandonment, which is less an exception than a different category of event. A half that cannot be completed is not shortened, it is stopped, and what happens next belongs to the competition rules rather than to Law 7. The 2026/27 text also now says explicitly that where a team is responsible for a match being abandoned because it has fallen below seven players, the match is forfeited by that team.

The second is the penalty kick, and it is the one every viewer eventually sees. If a penalty has been awarded and has still to be taken or retaken when the half would otherwise end, the half is extended until that kick has been completed. The extension is granted for the kick and its immediate outcome only. A rebound from the post that is put in by an onrushing attacker does not count, because the kick was completed when the ball came back off the woodwork. A rebound saved by the goalkeeper and then struck home does not count either. What does count is the ball entering the goal directly, or off the goalkeeper, or off a post or crossbar and in, because those are outcomes of the kick itself rather than of a fresh phase of play.

This is the clearest illustration of the principle underneath all of Law 7. The clock is a servant of the football rather than the other way round. A restart that has been earned is allowed to happen.

1. 1Play stopsThe referee's watch keeps running while a second timing starts on the stoppage itself. Nothing is deducted from the ninety minutes; the lost interval is recorded separately.
2. 2The category is identifiedSubstitution, injury assessment, card, video check, celebration or plain time wasting. The category determines whether the whole interval counts or whether a competition convention trims it.
3. 3The interval is measuredTiming runs to the moment the ball is back in play, not to the moment the incident ends. The walk back to position is part of the cost.
4. 4The entry joins the ledgerThe referee holds a running total for the half. Where a fourth official is appointed, they usually keep an independent tally that can be compared before the board goes up.
5. 5The total is passed to the fourth officialThis happens in the last minute of the half, by earpiece or by a brief word at the touchline. The referee decides the figure and the fourth official displays it.
6. 6The board shows the minimumThe number is announced to both teams and to the crowd, and it cannot afterwards be reduced.
7. 7The ledger stays openAnything that costs playing time during the added period is added to it. The half ends when the referee judges the lost time has been returned, and not before.

The sequence the Laws describe, applied to one interruption.

How goals came to be priced differently from everything else

Goal celebrations are the category where competitions have moved furthest from a literal reading of the stopwatch, and the reasoning is worth following because it explains a visible change in match lengths.

Before the tightening, celebrations were largely ignored. A goal was treated as part of the flow of the game, and the forty or fifty seconds between the net rippling and the kick-off were absorbed into the ninety minutes without comment. That produced a strange incentive: a side leading by one with ten minutes left benefited from every second of its own celebration and from every second of the opposition's despair, and neither cost it anything.

FIFA's refereeing department, under Pierluigi Collina, asked officials at the 2022 World Cup in Qatar to calculate lost time far more accurately, and specifically named goal celebrations alongside injury treatment, substitutions, penalties and red cards as intervals that had to be given back. Collina's public explanation was blunt: people want to watch football, and a ninety-minute match containing a great deal less than ninety minutes of football is not what they have paid for. The effect at that tournament was immediate and startling. Added periods regularly ran past ten minutes, full matches routinely passed the hundred-minute mark, and a competition that had never previously drawn attention to its timekeeping suddenly could not stop being asked about it.

The English game adopted the same guidance from the following season, and then discovered the cost of applying it literally. Charging the full interval between a goal and the restart meant charging teams for the thirty seconds it physically takes twenty-two players to walk back to their halves, which is not time wasting by anybody. The Premier League's published approach from 2024/25 therefore allows a standard half-minute for the reset before the timing on that stoppage begins. A brisk restart costs nothing at all. A celebration that goes into the away end and back costs the excess over thirty seconds, which is the part somebody actually chose.

Substitutions, injuries, penalties, red cards and video delays are still timed from stoppage to restart in full under that guidance. The goal is the one incident with a built-in allowance, because it is the one incident where a fixed and unavoidable delay is part of the event.

2022/23507

2023/24695

Season averages published after the introduction of the stricter timekeeping guidance, converted from minutes and seconds. Two seasons only, not a trend line.

Show the numbers

Average added time per Premier League match, in seconds

Item	Seconds added per match
2022/23	507
2023/24	695

What the stricter accounting bought, measured in football

The point of the exercise was never longer matches. It was more football inside them, and that is the number worth looking at.

Analysis of the first season under the new guidance across England's top four divisions found the proportion of each match with the ball actually in play rose in every one of them, and rose furthest in the divisions that had been losing the most. In absolute terms the Premier League gained close to four minutes of ball-in-play time per match, and League Two gained around seven and a half. As a share of the match, the increase ran from a little over two percentage points in the top flight to a little over six in League Two.

That pattern is the whole argument in one shape. The competitions with the most time wasting had the most to gain, because the accounting does not create football, it recovers football that was being taken away. A top-flight match with a high tempo and quick restarts was already delivering most of its ninety minutes and had little to recover. A match in which every goal kick took forty seconds had a great deal.

The same first season produced a sharp rise in shots taken during the added periods, which is the mechanical consequence of playing more minutes at the end of halves when one side is chasing something. Whether that is an improvement is a matter of taste. That it follows from the arithmetic is not.

Premier League2.2pp

Championship3.2pp

League One4.2pp

League Two6.2pp

Percentage-point gains reported across England's top four divisions in the first season under the stricter timekeeping guidance. A single season's comparison.

Show the numbers

Rise in the share of the match with the ball in play, 2023/24 against 2022/23

Item	Percentage-point increase
Premier League	2.2pp
Championship	3.2pp
League One	4.2pp
League Two	6.2pp

The 2026/27 changes, and why they aim at the causes

By the middle of the decade the accounting worked and the side effects were obvious. Matches were long, squads were being asked to play more minutes in a congested calendar, and the added period had become a fixture of its own with its own dramas. The IFAB's response at its 140th Annual General Meeting, held in Wales and effective from 1 July 2026, was to stop adjusting the refund and start reducing the loss.

Three of the approved changes bear directly on the ledger.

The substitution exit rule gives a replaced player ten seconds from the display of the board, or from the referee's signal where there is no board, to be off the field of play. Miss it and the substitute is not permitted on until the first stoppage after a minute of running time following the restart. The team that took the extra seconds hands them back with interest and plays a man short while it does.

The injury rule requires a player who has been assessed on the field, or for whom play has been stopped, to leave and remain off for one minute of running time after the restart. Treatment is not discouraged, but the free option of pausing the match at a convenient moment and rejoining immediately has gone.

The restart countdown covers throw-ins and goal kicks. Where the referee judges the restart is being delayed, they signal a visible five-second countdown, and if the ball is not in play by the end of it the throw-in is given to the opposition and the goal kick becomes a corner. That is a much sharper instrument than a caution, because it converts stolen seconds directly into territory and possession.

Read together, the three form a single argument: a rule that returns lost time treats the symptom, while a rule that makes losing time expensive treats the cause. The same reasoning had already produced the goalkeeper provision of the previous season, under which holding the ball beyond eight seconds, counted down visibly by the referee from five, concedes a corner rather than an indirect free kick.

Why the half-time interval never appears in the ledger

A question that comes up often, and has a tidy answer: the fifteen-minute interval between the halves is not lost playing time, so nothing about it is ever returned.

Law 7 fixes the interval at fifteen minutes, allows a competition to vary it only in its own rules, and requires the referee's permission for any change on the day. The interval is a scheduled part of the fixture in the way that kick-off is, and no allowance follows from it. The same reasoning covers the interval before extra time, and the brief pause between the two halves of extra time where competitions permit one.

What can attract an allowance is a delayed restart of the second half. If a side is slow to reappear, the time between the moment play should have resumed and the moment it did is lost playing time under the residual clause, and it belongs to the second half's ledger rather than the first. That distinction, scheduled pause against unscheduled delay, is the line the whole Law draws, and once you have it, most of the awkward cases sort themselves out. A drinks break agreed in the competition rules is scheduled but happens inside the half, so it is returned. A floodlight failure is neither scheduled nor inside anybody's control, and it is returned as well.

What longer added periods do to the way sides play

The arithmetic changed the shape of matches, not only their length, and coaches adjusted faster than supporters did.

A side protecting a narrow lead used to be able to plan the last five minutes around a known quantity: roughly three or four minutes were coming, most of it uneventful. With a genuine allowance for everything lost, the closing period is longer, less predictable, and paid for partly by the leading team's own behaviour. Every substitution used to see out a game now buys the opposition seconds back. Every delay at a goal kick may hand over a corner. The tactics of holding on have become measurably more expensive than they were, which was the intention.

At the other end, a chasing side has more of the thing it needs most, which is time with the ball in play and a defence that has to keep defending. That is why the shots-in-added-time figures moved so sharply in the first season under the tighter guidance. The additional minutes are not neutral minutes. They are minutes played in a match state where one side is usually committed forward and the other is usually deep, which is the state that produces chances.

Squad depth matters more as a result. A bench that can put fresh legs into the last ten minutes of a hundred-minute match is worth more than one that could see out a ninety-three-minute match, and that is one of the strands running through the wider argument about how many substitutes a team should be allowed.

Why identical events produce different numbers in different competitions

Law 7 sets the principle. It does not set the tariff, and this is the most common source of confusion for anyone who watches more than one league.

The Laws tell the referee to make an allowance for all playing time lost and to include the listed categories. They do not say how many seconds a goal costs, whether a celebration carries a free allowance, or how a period of persistent time wasting should be priced. Those are matters of refereeing instruction, and each competition issues its own, guided by whatever its governing body and its own officials' body have agreed.

That is why the same sequence, a goal in the eighty-eighth minute followed by a substitution and a booking, can be worth a different amount in two different competitions on the same weekend. It is also why year-on-year comparisons within a single league are far more meaningful than comparisons across leagues, and why a change in a competition's average added time usually says more about a memo sent to its referees in July than about the behaviour of its players.

One further constraint is written into Law 7 itself and is easy to miss. A referee who has mismanaged the length of the first half may not correct it by adjusting the second. Each half stands on its own, an error stays in the half where it happened, and the ledger starts again from zero after the interval.

What a referee is doing with their hands, and what it tells you

Watching the officials is the cheapest way to learn how the number is being built, because most of the process is visible if you know what you are looking at.

A referee tapping the face of the watch is usually starting or stopping the second timing on a stoppage. Most match watches used at senior level run two timers at once, one for the half and one for the current interruption, and the tap you can see from the stand is the interruption being opened or closed. A referee who taps as a player goes down and taps again as the free kick is finally taken has just recorded that entry.

The fourth official in conversation with the bench during a break in play is often confirming a substitution rather than defending a decision. A fourth official checking their own watch against the referee's report before raising the board is doing exactly what the arrangement is for, which is providing a second set of eyes on a number that will be broadcast to the world.

And the referee who allows a corner to be taken after the added period has expired is not being generous. Play does not stop the instant the minimum has been reached, it stops when the referee judges the lost time has been returned, and a referee who has just watched thirty seconds disappear into a goalkeeper's hands is entitled to conclude that it has not been.

How to judge whether an added period was right

Very little of the argument after a match survives contact with the ledger, but there is a way to test your own instinct while the match is still running.

Count the events rather than the minutes. Every substitution, every treatment, every card, every video check, every goal. Assume roughly half a minute for a routine change and more for a slow one, a minute or more for treatment that puts a physio on the pitch, most of a minute for a red card and its aftermath, and the excess over half a minute for each celebration. Total it, and compare with the board. The estimate will rarely be exact, but it will almost always land in the right neighbourhood, and the cases where it does not are usually the cases where a competition convention you did not know about is doing the work.

Then apply the second test. If the announced figure is exceeded, ask what happened after the board went up. If a substitution, a booking or a goal occurred inside the added period, the overrun is arithmetic rather than favouritism. If nothing at all happened and the half ran two minutes long, you have a genuine question worth asking, and it is a different question from the one most people shout.

The last thing to remember is that a referee is managing a match rather than auditing it. Stopping precisely on the announced number every week would be a fine trick and a poor piece of officiating, because the events that generate the entries do not arrange themselves to finish tidily. The Laws ask for an allowance for time lost, and an allowance is a judgement supported by measurement rather than a measurement dressed up as a judgement.

For the review process that sits inside several of those entries, our explainer on how video assistance works in practice covers what a check costs and why some of them take so long. The interaction between a tight offside call and a delayed restart is set out in the offside law and how it is judged, and the decision type that most often produces a long on-field review is unpacked in the handball law and its deliberate ambiguity. If you want to see how a competition's own scheduling shapes the calendar these matches sit in, the Champions League league phase is a good place to start.

More football rules and tactics writing sits in the football section, and the full run of explainers across every sport we cover is in the blog.