In 868, Takafuji was awarded the rank of Jugoinoge (Junior Fifth Rank, Lower Grade) and remained in this rank for a long time, but in 894 he was awarded the rank of Jusanmi (Junior Third Rank), three ranks higher than his previous rank, following the investiture of his daughter FUJIWARA no Taneko's son (the later Emperor Daigo) as the Crown Prince in 893.
868年（貞観_(日本)10年）従五位下、長らく五位に留まっていたが、893年（寛平5年）娘の藤原胤子の子である醍醐天皇の立太子を受け、894年（寛平6年）に三階級昇進して従三位に叙せられた。