1. Determine the tax payment period: determine the tax declaration period according to the provisions of the tax law and the enterprise's own situation.

2. Collection of tax declaration data: Collect the data required by the enterprise for tax declaration, such as the last tax return, bank statement, sales invoice, purchase invoice, payroll, etc.

3. Fill in the tax return: according to the collected information, fill in the tax return according to the requirements of the tax authorities, such as the value-added tax return and the enterprise income tax return.

4. Check the tax return: check the completed tax return to ensure that the data and amount filled in are accurate.

5. Submit tax returns: Submit a complete tax return to the tax authorities, whether online or offline. Online submission needs to go through the website of People's Republic of China (PRC) State Taxation Administration of The People's Republic of China or the website designated by the tax department, and offline submission needs to be submitted to the tax department on site.

6. Tax payment: according to the tax payable calculated in the customs declaration, the tax shall be paid to the designated bank account at the specified time and manner.

The information required for the company's tax return is as follows:

1. company registration certificate: including business license, organization code certificate, tax registration certificate and other documents that prove the company's legal operation.

2. Tax returns: Different taxes have different returns, such as value-added tax and enterprise income tax.

3. Invoices and vouchers: Invoice and voucher information, including invoice date, amount and invoice number, should be filled in accurately.

4. Financial statements: financial statements are required, such as balance sheet, cash flow statement and income statement.

5. Audit report: If an audit is required, an audit report is required.

6. Tax-related documents: such as tax payment certificate, tax payment certificate, etc.

To sum up, when filling out and submitting tax returns, we must carefully check the data and amount to ensure that the contents filled in are accurate to avoid tax disputes.

Legal basis:

"People's Republic of China (PRC) tax collection and management law" sixty-eighth.

If a taxpayer or withholding agent fails to pay or underpays the tax payable within the prescribed time limit and is ordered by the tax authorities to pay within the prescribed time limit, the tax authorities may impose a fine of not less than 50% but not more than five times the unpaid or underpaid tax in addition to taking compulsory measures to recover the unpaid or underpaid tax in accordance with the provisions of Article 40 of this Law.