After you file

why file and then amend? you can update the W-2 and e-file as usual. Just make sure that any extension payment is included on the return. Turbotax does not assume that it was paid. 

you cannot cancel the extension only the payment. filing early will not cause issues because of the extension.  

To cancel a payment you scheduled with your federal tax extension, you have a few options:

1. Electronic Federal Tax Payment System (EFTPS):

   • Visit the EFTPS homepage and log in.
   • Click on “Cancel a Tax Payment” from the left menu.
   • Follow the instructions to cancel the payment.

2. Authorized Electronic Funds Withdrawal (EFW):

   • If you authorized an electronic funds withdrawal as part of filing your tax return, you can cancel it by contacting the U.S. Treasury Financial Agent at 888-353-4537