Especially in the Period of Northern and Southern Courts, as financial difficulties became more serious, the Imperial Court commanded each government office to set up Dairi-ritsubunseki (Imperial pro rata checkpoints, also called Dairi-ritsubunsho) in order to ensure their income.
特に南北朝時代_(日本)によって財政難に拍車がかかると、朝廷が収入を確保するために各官庁に命じて内裏率分関（だいりりつぶんぜき・内裏率分所（だいりりつぶんしょ））を設置した。