Paying social security and issuing tax bills are not invalid.

The tax bill for paying social security is not invalid. Treatment method of failure:

1. Open the electronic network invoice application system.

2. Enter the account number, and then click Login with Password.

3. Enter the main interface of electronic invoice and click Invoice.

4. Click to void the invoice.

5. Select the date to void the invoice, and click Query.

6. Find the invoice to void and click Void.

7. Fill in the invoice code, invoice number and void reason, and click void.