The Bulgarian Football Union (BFU) have confirmed they will appeal the £34,000 fine imposed by UEFA on Friday.
European football's governing body penalised the Bulgarians for racist chanting during the defeat to England at the beginning of September.
The BFU were given three days to consider an appeal and confirmed their intention to do so with a statement released on Saturday.
"BFU president Borislav Mihaylov, who is also a member of the UEFA executive committee, will travel to Nyon (Switzerland) to clarify the situation with the disciplinary commission's decision."
The charge is also related to the throwing of flares onto the pitch in the same game.