How do i get my webfile number

Follow these steps:

1. Verify your return is filed and your TurboTax account shows filed
2. You can call us at 1-800-446-8848
3. Ask them for the DCN* shown in EFE (electronic filing engine). 
4. You will have to prove your identity as this is private information.

*Document Control Number (DCN)

See this - https://comptroller.texas.gov/taxes/file-pay/getting-started.php