The Bulgarian Football Union (BFS) has been fined £34,230 by Uefa for 'discriminatory behaviour' during their Euro 2012 qualifier against England on 2 September.
The punishment is related to chanting by Bulgarian fans and for the throwing of fireworks during the match.
England won the match 3-0, with Gary Cahill scoring the opener and Wayne Rooney netting twice.
The BFS has three days to appeal against the decision.
The Football Association over alleged racist abuse directed at England winger Ashley Young.
Fellow winger Theo Walcott said the abuse was "very clear" to hear but "ignored it".
Former Germany captain Lothar Matthaus, who was Bulgaria coach at the time, apologised in his post-match press conference for the conduct of the minority of Bulgaria's fans.
"It's pitiful for things like that to happen," he said. "And, as a result of that, I'd like to apologise on behalf of the Bulgarian Football Federation."