You could open your 2019 return and enter the Corrected 1095-A. If it changes your Refund, you should Amend, although you are correct that you don't need to do so immediately.
Click this link for info on How to Amend a Prior Year Federal Return.
This link gives instructions on How to Enter 1095-A.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
