1. Log in to the tax system, and use the taxpayer identification code or other login information to log in to the local electronic tax bureau system.

2. Enter the invoice management module, find the invoice management module in the system homepage or related menu, and click Enter.

3. Selecting the function of querying invoices means selecting "Invoice Query" or similar options.

4. Enter the query criteria: fill in the query criteria according to the system requirements, and you can fill in the buyer's taxpayer identification number, name, address and other information.

5. Query: click Query to query according to the filled query criteria, and the qualified invoiced list will be displayed.

6. View buyer information: In the invoiced list, each invoice will display basic information such as invoice date, invoice code and invoice number. Click on the detailed information of the corresponding invoice or related links, and the system will display the detailed contents of the invoice, including taxpayer identification number, buyer's name, address and other information.