1. Download the personal income tax APP and register. 2. Select "Annual Settlement of Comprehensive Income" under "General Business" to enter the settlement page. Follow the prompts to explain step by step whether I should refund the tax or pay the tax. If I am lower than 400 yuan, I don't need to make a final declaration or pay taxes. Above 400 yuan, declare tax payment; If the prepaid tax amount is consistent with the taxable amount, it may or may not be declared.