The game's world governing body announced the sanction, which relates to breaches concerning the transfer of players who are under 18, on Friday and the Premier League club are now be formulating their response.
The Stamford Bridge outfit are expected to exhaust every avenue that is available to them as they seek to challenge the decision and preserve their reputation.
So why have the sanctions been imposed and what can they do about it? Goal takes a look at how it all works
Why have Chelsea been hit with a transfer ban?
According to FIFA, the ban is being imposed on Chelsea because the governing body found the club to be in breach of regulations relating to the international transfer and registration of players under the age of 18.
Specifically, the Blues were found to have breached article 19 of the Regulations on the Status and Transfer of Players in the case of 29 minors.
The club was also found to have breached article 18bis (which concerns third-party influence on clubs) in connection with two agreements that were reached concerning minors.
It is not clear which players the breaches in question are related to.
As well as a ban, FIFA has issued a fine of 600,000 Swiss Francs (£460k/$600k) and the Blues have been given a period of 90 days to "regularise the situation of the minor players concerned".
Furthermore, not only have Chelsea been sanctioned by FIFA, so too have the Football Association (FA).
FIFA fined the English governing body 510,000 Swiss Francs (£390k/$510k) for breaches and imposed a six-month period in which to "address the situation".
Can Chelsea appeal the transfer ban?
Yes, Chelsea can contest the decision reached by FIFA by bringing their case before the FIFA Appeal Committee.
Indeed, the club
"Chelsea FC categorically refutes the findings of the FIFA Disciplinary Committee and will
"The club wishes to emphasise that it respects the important work undertaken by FIFA in relation to the protection of minors and has fully cooperated with FIFA throughout its investigation.
"Initially, Chelsea FC was charged under Articles 19.1 and 19.3 in relation to 92 players.
"We welcome the fact that FIFA has accepted that there was no breach in relation to 63 of these players, but the club is extremely disappointed that FIFA has not accepted the club’s submissions in relation to the remaining 29 players.
"Chelsea FC acted in accordance with the relevant regulations and will shortly be submitting its appeal to FIFA."
While the decision of the FIFA Appeal Committee is "final and binding", should Chelsea not be satisfied with the outcome they can make a further appeal to the Court of Arbitration for Sport (CAS).
How long does an appeal take?
The duration of the appeal process varies depending on the case, but it can take up to two or three years, sometimes longer.
As you might expect, such things require a lot of paperwork and legal representations and there is a natural processing period for each step.
The club must first lodge their appeal with the FIFA Appeal Committee and, based on previous cases, it can take roughly three to four months for a decision.
After that, if a club is not satisfied with the decision of the FIFA Appeal Committee, a case can be made to bring the issue before the CAS in Switzerland.
Again, the duration of the CAS appeal process also varies, depending on the court's schedule among other things, but it will generally take a number of months
How long will the Chelsea transfer ban last?
As mentioned, the transfer ban that has been imposed on Chelsea is scheduled to last for the next two consecutive registration windows.
The windows in question are the upcoming 2019 summer window and the 2020 winter window. That means they won't be able to complete transfer deals until the summer of 2020 at the earliest.
However, in the event of an appeal process being set in motion, the ban can be temporarily suspended until the outcome of the final appeal is reached.
In effect, what that means is that clubs can buy themselves some time in which to create a contingency plan by signing players to minimise the effect of a ban.
For example, Barcelona
As mentioned, Chelsea
What other clubs have had transfer bans ?
However, while Chelsea's breaches concern the cases of 29 minors, the cases of the Spanish clubs involved many more players. In the case of Barcelona, 31 minors were investigated and Real Madrid's case saw the investigation of 70 minors. However, Atletico's breaches involved more than double the Clasico pair combined, with 221 investigations.
Each of the cases involving the Spanish clubs took a number of years to be completed. From start to finish, Barcelona's case concluded in two years, Atletico's lasted just over three years and Real's was approaching four years.
In each of the aforementioned cases, the FIFA-imposed transfer bans were upheld, though the transfer ban was reduced to just one window in the case of Real.