Will I be able to amend my 2019 return? I forgot to file my 1099 form, because it hasn't arrived yet. Using a Mac and not Windows compatible.

[TerukoL]

First, make sure you really need to amend and that your 2019 return was accepted in TurboTax Online or paper-filed through the mail. You can't amend a return that hasn't been filed yet.  Please click this TurboTax Help link to learn how to amend your return.

[wando03070]

This does not answer the question.   The help link brings up info on Online Turbo Tax.  The question is about amending a 2019 return with the downloaded product.  I will continue trying to figure this out on my own, although some actual assistance would be great.

[JakailaLO]

@wando03070 please provide us with details specific to your issue. Are you using a MAC and please know that the ability to amend a return is not active until 02/26/2019, and the return will need to be mailed it cannot be e-filed. https://ttlc.intuit.com/community/amending/help/how-do-i-amend-my-turbotax-online-return/01/27577#M6...

If you require further assistance, please feel free to post a new question.