Hello, the tax number of the company can be viewed in the following ways: 1. You can check the company's bank tax payment voucher, which has the taxpayer identification number in the upper left corner. 2. The special VAT invoice issued by the company has the taxpayer identification number, two taxpayer identification numbers, the taxpayer identification number of the purchasing unit and the taxpayer identification number of the selling unit. Third, check the company's national tax registration certificate, and the number 15 in the upper right corner of the home page is the taxpayer identification number. The company's local tax registration certificate also has the word tax, and the taxpayer identification number on a company's national tax and local tax is the same. Four, the first page of the invoice book, you can also check the taxpayer identification number; You can check with the company's tax staff.