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My problem is that on the original 1040, there is a box where you can indicate that you can be claimed as dependent.

 

However, on the 1040-X, there is no such box. There is nowhere to indicate your dependency status.

 

Changing it on TurboTax doesn't make a difference since it doesn't change anything of the actual form that is to be printed and mailed.

 

Is stating that I do not qualify as a dependent in the explanation section on the second page of the 1040-X sufficient? Am I missing something?