Three months. It takes 15-30 days to apply for temporary subsistence allowance in Jiangxi province, and it takes 3 months to get the subsistence allowance. The application for subsistence allowance is submitted after the applicant completes the certification materials, and no fees are required. Temporary subsistence allowance refers to the family difficulties caused by sudden disasters. After the family economy improves, the subsistence allowance provided by the civil affairs department will be cancelled.