阿卜杜拉在845年过世,由他儿子塔希尔· 伊本· 阿卜杜拉(英语:Tahir ibn Abdallah)继任,后人对他的统治知之甚少,但受呼罗珊管理的锡斯坦,在他执政期间被叛军所夺取。塔希尔· 伊本· 阿卜杜拉的儿子穆罕默德·伊本·塔希尔(英语:Muhammad ibn Tahir)继任总督之后,由于他对国家事务的漫不经心,加上缺乏政治经验,王朝的统治权力开始严重恶化。受呼罗珊管理的另一个地区 - 塔巴里斯坦,由于当地的苛政,导致人民起而抗暴,他们在864年宣布转而投向阿拉菲德王朝的建国者哈桑· 伊本· 宰德(英语:Hasan ibn Zayd)。[12]在呼罗珊,穆罕默德·伊本·塔希尔的政权变得越来越衰弱,他们最终于873年被萨法尔王朝所推翻,萨法尔王朝将呼罗珊并入,成为他们帝国的东部领土。
"The Taherids of Iraq. As the events of the late Taherid period demonstrate, the Taherids in Iraq were just about as powerful and important, even if less well known, than their Khorasani relatives. They regularly held positions as military commanders, heads of the security forces (ṣāheb al-šorṭa) for eastern and western Baghdad, and chief tax collectors or administrators (e.g., ʿāmel and moʿāwen) for the Sawād of Kufa."[9]
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