If you have already E-Filed your return you would want to start an Amend in TurboTax first. Then Follow my directions
Please read the Following TurboTax Faq below to start an amend
https://ttlc.intuit.com/replies/3288565When you're done amending, TurboTax will provide instructions to print and mail your amended return (Form 1040X). This is because the amended return cannot be e-filed.
You'll have to finish the 'amend interview' and print the forms
after everything is completed.
To Add Another W-2:
1. Go to "Federal Taxes" at the top of the screen
2. Select the "Wages & Income" sub-tab
3. Select "Start/Revisit" next to "Wages and Salaries"
4. Select "+Add Another W-2" in blue
For more information and filing Form W-2 visit this link:
What is Form W-2?
Check out this TurboTax FAQ below
https://ttlc.intuit.com/replies/3389204
Three weeks after you mail your amendment, you can start tracking its status at the IRS
Where's My Amended Return?
site or by calling their automated number 1-866-464-2050.
Please note that it can take 12-16 weeks to process your amendment.