You can change any of the information on the returns that you filed starting in 2020. 2019 is technically already dead.
So you can alter the information on your 2020 return but you can't create a new company out of it. A new company would not be an amended return - it would be a new return.
But if you just change the information on your 2020 return you can disregard the 2019 return and adjust whatever you need to adjust.
@irssucksdonkeynuts
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