2. After entering the website, click "Tax Service".
3. After entering the tax service page, drop down the page to the bottom, find and click the query option of A-level taxpayers with tax credit in the position shown in the figure.
4. Click "Query A-level taxpayers with tax credit", and a dialog box will appear below. Enter the full name of the query enterprise in the dialog box, and then click the query button below.
5. If the query result is found in the window on the left side of the query, it means that the query object belongs to A-level credit; If it is not found, it means that the query object is non-A-level credit.