1099k

[Cameronb1990]

I already filed my taxed but I forgot to add my 1099K information on there. 

Is it possible to go back and add it?

[Critter]

How to amend (change or correct) a return you already filed

You can amend e-filed returns if they've been accepted; paper-filed returns may be amended once they've been mailed.

If your e-file is still pending, you won't be able to make changes until the IRS either accepts or rejects it. Don't know your e-file status? Here's how to look it up.

Select your tax year for amending instructions:

• 2019
• 2018
• 2017
• 2016