Football transfer windows explained: the FIFA rules behind registration periods

A transfer window is the informal name for what FIFA calls a registration period: the only time a club can register a new player, whether that player arrives from abroad or from down the road. The window does not stop clubs talking, agreeing terms or signing contracts outside it. It stops the new club registering the player, and an unregistered player cannot play.

This guide explains the FIFA rules as they stand in October 2026, under the July 2025 edition of the Regulations on the Status and Transfer of Players (RSTP). A new edition comes into force on 1 January 2027. The window rules in article 6 are unchanged in that edition, but some of the transfer process around them is not, and those changes are flagged below.

What is a registration period?

Article 6 of the RSTP says players may only be registered during one of the two annual registration periods fixed by the relevant national association. All transfers, national and international, must happen within those periods unless one of the listed exceptions applies.

Article 6 is one of the provisions that every national association must copy into its own rules without modification. FIFA's explanatory notes are explicit that associations cannot run separate windows for domestic moves or first registrations: the dates entered in the Transfer Matching System (TMS) bind national and international transfers alike.

Associations may set different registration periods for their men's and women's competitions. If an association sets no period for one gender, the other gender's dates do not apply automatically, and players simply cannot be registered for those competitions until a period is defined. Competitions in which only amateurs take part sit outside the length rules altogether: the association sets its own periods for them.

When is the transfer window?

There is no single global transfer window. Each of FIFA's member associations sets its own two windows, inside limits that FIFA fixes. That is why a player can still move to one country after the window in another has shut.

FIFA's own explanatory notes describe the two common patterns. Associations whose season runs across two calendar years normally open the first window between June and August and the second in January. Associations whose season runs within a single calendar year normally open the first between January and March and the second in June or July. Those are patterns, not rules. The only reliable answer for a specific country is the date that association has entered in TMS.

To find the actual dates:

• Check the association's profile on inside.fifa.com. Each association page has a "Transfer periods" calendar, with a men's and women's toggle, showing closed, open and future windows.
• Check the national association's own website or regulations, which will also set out any domestic deadline procedures.
• Ask the club. Its TMS users work inside those dates every day, and they are the people who have to confirm the deal in time.

Do not rely on a news article for a closing date in a live deal. Dates are set well in advance, but an association can change a period that has not yet started, provided it notifies FIFA.

How long can a transfer window be?

Article 6 paragraph 2 sets the limits:

• The first registration period must last at least eight weeks and no more than 12.
• The second registration period falls in the middle of the season and must last at least four weeks and no more than eight.
• The two periods together cannot exceed 16 weeks. FIFA's notes put it as exactly 112 days to share between them.
• The first period can open as early as the day after the previous season's competition period ended, and no later than the first day of the new season.

Associations must enter their season dates, competition period and both registration periods in TMS at least 12 months before they come into force. If an association fails to set them on time, FIFA sets them. Once a registration period has started, its dates cannot be changed. FIFA's annual circular also warns that if a window ends on a public holiday or non-business day, it cannot roll over to the next business day if that would push it past the maximum length.

The flexibility in the second window is relatively recent. Until the March 2023 edition, the second window could not exceed four weeks, which left associations with single-year seasons exposed to losing players to clubs in longer windows elsewhere without being able to replace them.

Can a player be signed outside the transfer window?

Yes, in a limited set of cases listed in article 6 paragraph 3. The ones agents meet most often:

• Contract terminated with just cause by the player, or without just cause by the club. The player can be registered outside a window. When the ITC is requested, the FIFA general secretariat makes a quick prima facie assessment of whether the termination was with or without just cause and allows or refuses the registration. That assessment does not decide the dispute itself, which can still go to the Football Tribunal.
• Contract expired or ended by mutual agreement before the end of the engaging club's window. The player can be registered with that club after the window closes. Timing is everything here: the contract must have ended before the window closed, not after.
• Female players replacing, or returning from, pregnancy, adoption or family leave, under article 6 paragraph 3 c) and d).
• A professional whose contract expired or was terminated as a result of COVID-19, regardless of when.

Where FIFA allows an out-of-window registration after a termination, article 6 paragraph 5 makes any rule or contract term requiring the former club's consent null and void. Where a contract has simply expired, the former club's consent is never required.

Associations must give "due consideration" to sporting integrity when they register a player outside a window, and a collective bargaining agreement can define that in more detail. In practice, check the national rules as well as article 6 before you promise a free agent a mid-season move.

Which window applies in an international transfer?

The window that matters is the new association's. Under Annexe 3 of the RSTP, the clubs must confirm the transfer in TMS before the end of the new association's registration period, and the new association must request the ITC on the last day of that period at the latest. An ITC requested after the window closes, with no exception available, goes into "validation exception" status and the player cannot be registered unless FIFA resolves it.

The selling side's window still matters for loans. Under article 10, a loan must end on a date that falls within one of the registration periods of the former club's association. Build that into the loan dates from the first draft.

The Transfer Matching System and the ITC

Every international transfer in eleven-a-side football, professional or amateur, has to go through TMS. FIFA provides it free to clubs and associations. Agents do not have access: Annexe 3 says a TMS user cannot be a football agent or a professional player. Your job is to make sure the clubs have what they need, early.

Both clubs enter a transfer instruction independently. The new club uploads, among other things, the player's passport or identity card, proof of the end date of the last contract and the reason it ended, the new employment contract, and the transfer or loan agreement. Each club must also upload any representation agreement it has signed with an agent, within 14 days.

Where there is a transfer agreement, the two instructions have to match. If the player, the clubs and the instruction type match but the payment details or loan dates do not, the transfer sits in a "matching exception". That status blocks the transfer until the clubs correct it, which is why a fee schedule agreed late at night and typed differently by two clubs can cost a registration.

Once the instruction is created, the new association requests the International Transfer Certificate (ITC) from the former association. Under the current rules, the former association has 72 hours to deliver it. If it does not respond, the new association can register the player anyway. From 1 January 2027, that period becomes five calendar days, the former association can note that the old club reserves financial claims (without affecting the registration), and FIFA may exceptionally allow registration within one working day to prevent irreparable harm to the player.

Two further points: no ITC is needed for a player under ten, and for a minor aged ten or over, the ITC can only be requested after the Football Tribunal has approved the minor application.

What agents should do before a window opens

1. Know the dates. List the registration periods for every association your players might realistically move to, men's or women's as relevant, and diarise both the opening and closing dates.
2. Know your players' contract and mandate end dates. A contract that ends a week after a window closes is a different negotiation from one that ends a week before. A system that tracks both, such as Quanda, stops these dates living in one person's head.
3. Collect documents early. Passport or ID, proof of the last contract's end date and how it ended, previous registration history and anything needed for a work permit are slow to gather under pressure.
4. Check eligibility constraints. Loan limits, registration bans on the buying club, and the minors rules in article 19 all trigger validation exceptions that cannot be fixed on the last day.
5. Check your own paperwork. Make sure your representation agreement is valid, signed and ready for the clubs to upload in TMS.

What agents should do during the window

• Push for transfer agreements to be finalised with the exact payment schedule both clubs will enter, so the instructions match first time.
• Ask both clubs to confirm when they have entered and confirmed the instruction, and when the ITC has been requested.
• Keep a margin. The ITC must be requested by the last day of the new association's window, and a missing document or an unresolved matching exception on that day can push the request past the deadline.
• For free agents, confirm the exact end date of the previous contract against the window, and keep written proof of termination ready for the new club to upload.
• After the deal, make sure proof of each payment is uploaded in TMS within 30 days. That is the club's obligation, but solidarity payments and your own fee schedule may depend on it.

Transfer windows, the ITC and the TMS process are core exam topics. You can test yourself with the free FIFA agent exam mock at /fifa-agent-exam-practice/mock-exam or work through the practice questions at /fifa-agent-exam-practice.