Checked/redone my w2 multiple times, but still getting an error for Utah form "tc-40w" saying withholding id number must be 14 characters. My number is 11779759002WTH.

I can make several suggestions:

• Clear the ID number and leave it blank.
• Replace the number with the Federal ID (I know it's not 17 character).
• Delete the entire W-2, and re-enter it

On the menu bar on the left.                 

1. On the left sidebar
2. Select Tax Tools
   1. You may have to minimize tabs for
   2. Federal & State
3. On the drop-down select Tools
4. On the Pop-Up menu select Delete a Form
5. This will give you all of the forms in your return
6. Scroll down to the form you want to delete 
7. Select the W-2 Form that applies
8. Click on Delete.

Now re-post the W-2 manually.

 

1. Under Federal
2. Click Wages & Income a menu will appear.
3. Click the down arrow on Wages & Salaries
4. Select Wages & Salaries W-2
5. We'll start with your W-2 select 
   1. Work on my W-2
6. Enter the employer ID from your W-2 - get this number from your W-2
7. How would you like to add your W-2? 
   1. At the bottom of the screen select [Type it in Myself]
8. OK, let's review your form and fill in any missing info
   1. Enter your employers information.
9. Let's review the rest
   1. Enter your W-2.
10. Continue the interview.