This study re-examines the fiscal collapse of late-Qing China by analyzing how the imperial household’s financial practices destabilized the dynasty’s governance equilibrium. Focusing on the post-1853 period, it argues that the Taiping Rebellion’s devastation of salt tax networks and customary revenue streams triggered a systemic rupture in the Qing’s dual patrimonial-bureaucratic fiscal structure. Deprived of traditional income, the Imperial Household Department abandoned its century-old fiscal segregation from the Board of Revenue, initiating coercive fund transfers in 1857 that persisted until 1908. These transfers eroded bureaucratic control over public expenditures while enabling unchecked imperial extraction through semi-privatized channels. Contrary to previous scholarship emphasizing provincial-central tensions, this study highlights how the imperial household’s ultra-bureaucratic prerogatives subverted fiscal discipline, replacing quota-based budgeting with ad hoc requisitions. The resulting institutional dysfunction – marked by path-dependent rent-seeking and stifled fiscal innovation – exacerbated the regime’s inability to reconcile patrimonial demands with bureaucratic rationalization. By exposing the collapse of the Qing’s historic governance dialectic, this study reframes the dynasty’s fiscal disintegration as a crisis of autocratic institutional design rather than mere resource scarcity, offering new insights into late-imperial state failure.