1. In the main interface of Ukey invoicing software, click Invoice Management-Red Information Form-Fill in the Red Information Form of VAT Special Invoice.

2. Click "Vendor Application", enter the invoice code, invoice number and invoice date, and click "Next".

3. Click "Save" first, and then click "Upload".

4. After the red-ink information table is uploaded successfully, click Invoice Management-Red-ink Information Table-Review to download the red-ink information table of special VAT invoices.

5. Set the local outgoing path, click "Download", the download is successful, and click "Confirm" to download and obtain an XML format red information table file.

6. Click Invoice Management-Fill in Negative Invoice-Negative VAT Special Invoice.

7. Select and set the file path of the scarlet letter information table just downloaded, and click OK.

8. Click "Issue and Print" to successfully issue a red-ink invoice.