I did my taxes for 2019, but just noticed I have a 1099-G I need to file for 2018 what do I do?

[patsysrefund]

Am I able to amend my 2019 taxes for a 1099-G from 2018?

[Critter]

You need to amend the 2018 return to add 2018 income ...

For more complete information on how to amend a tax return please see this article: How to File an Amended Tax Return.