How does the Inland Revenue Department check the difference between sales and purchases?

The tax source management department can verify the real sales situation of the enterprise by checking the inventory, capital and logistics. According to the relevant network information, the tax system has a risk early warning system, and the tax source management department can verify the real sales situation of the enterprise through the verification of inventory, funds and logistics. The tax bureau is the government agency in charge of tax work, and undertakes the duties of tax and non-tax revenue collection and management within its jurisdiction.