1, log in to tax UKey, and click the menu item "invoice management/invoice purchase management/invoice online application".

2. Click the "Apply" button to initiate the online invoice application request operation.

3. After clicking, the "Invoice Application" window will pop up and fill in the application information.

4. Click the "Invoice Type" drop-down list, and the data can be automatically obtained. Select "VAT Electronic Special Invoice".

5. After filling in the invoice application information, click the "Apply" button to complete the application operation.