Log in to the tax filing client or electronic tax bureau, enter "I want to pay tax" to enter the "enterprise income tax declaration", select the declaration method according to the enterprise type, select the tax payment period: 202 1 quarter 1, click "Next", and fill in the relevant main table (Class A) and schedule according to the enterprise situation. After the approval, the system will issue a receipt, in which the "tax payable" will include the part of the previous application for deferred payment. Click "Pay Tax" to pay.