Ahead of the Guinea Bissau FA election that were set to take place on Sunday, Nascimento, who was seeking a third consecutive term in office was apprehended by the world football governing body.
FIFA revealed on an official statement on the eve of the elections this weekend that Nascimento breached art. 23 of the Fifa Code of Ethics - which has seen him banned from all football-related activities for the next decade.
The controversial leader was also handed a hefty fine of R1.8-million by the judges at FIFA's independent ethics committee.
Kaizer Chiefs were slapped with a two-window transfer ban for the illegal signing of 'Dax' from Fosa Juniors.
Atletico Madrid were also hit with a two-window ban but saw Antoine Griezmann snub FC Barcelona for another two seasons.
FC Barcelona were prohibited from signing players for two years over academy signings, which included now Real Madrid winger Take Kubo.
AS Roma recived a one-year transfer ban after announcing the signing of Philippe Mexes, who was still under contract at Auxerre.
Sion received a one-year ban and 36-point deduction over the unlawful signing of Essam El-Hadary from Al Ahly.
Real Madrid escaped a full two-window transfer ban for the signing of youth players and re-signed Alvaro Morata in January 2017.
Portsmouth received an indefinite ban until the debts of Glen Johnson and Lassana Diarra transfers were cleared.
Chelsea had a ban imposed after convincing Gael Kakuta to terminate his contract with Lens to join them but the club avoided the drama with £793k in compensation.