Because this line has been repaying the construction cost (about 65 billion yen) since its inauguration, for the line an extra fare of 60 yen is added to the ordinary fare structure by section, and the basic fare between the stations on the line (including the section starting from Sanjo Station toward the direction of Demachiyanagi Station) is 210 yen, which is more expensive than that of the Keihan Main Line (as of 2007).
また、開業当初から建設費（約650億円）償還のために普通運賃で60円の加算運賃が同線区間利用時に設定されており、鴨東線内各駅（三条駅から出町柳駅方面も含む）からの初乗り運賃は、2007年現在210円と京阪本線の初乗り運賃より高くなっている。