I think I may have entered the incorrect agi on my 2017 return do I have to amend?

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If you e-filed your return and it has not been accepted or rejected, there's no need to do anything yet, just wait until after you receive your e-file status.

• To check your e-file status in TurboTax Online click here to see if your IRS return has been e-filed.     
• If it wasn't found, select the "FILE" tab and repeat steps 1-3 when done.  

If you e-filed your return this year and it was rejected, there's no need to amend; just correct your information (as needed) and resubmit your return.

If your e-filed return is accepted, there's no need to resubmit the return at all. If the return is accepted despite the incorrect AGI, then there's no need to worry about it, it won't affect the return in any way.

Click here for more examples of when to amend and when not to amend.