Disaster is an event or series of events that threaten and disrupt community life. Flood disasters result in loss of life, environmental damage, and financial losses. Flood impacts affect the flood distribution locations and the socio-economic conditions of households in the post-flood period. The occurrence of flood-related damage experienced by households results in expenses for repairs and preventing further damage from future floods. These expenses constitute adaptation costs incurred by households and are influenced by various factors, leading to variations in the amount spent by each household. In general, this research aims to: 1) Identify household perceptions of seasonal floods in Barito Kuala Regency; 2) Identify the factors influencing adaptation costs in facing seasonal floods in Barito Kuala Regency. Based on the research outcomes, the adaptation strategies employed by the community in the Jejangkit District consist of active and passive adaptations. Active adaptation includes changing occupations and securing belongings, while passive adaptation involves knowledge of the seasonal calendar and reducing household expenses. Economic adaptation includes raising grain storage, working as laborers or motorcycle taxi drivers, and requesting money transfers from family members. Social and cultural adaptation involves solidarity systems in the form of providing food aid and assisting in evacuations through communal efforts.