Could you please be more specific? What are the new credits you are expecting to get? The IRS is recalculating refunds if you filed before the laws changed for unemployment, and will also recalculate some earned income credit or premium tax credits----so it might not be necessary for you to amend. And the new child tax credit is not for 2020---it is for 2021 so there is no need to amend for the CTC. The IRS does not want you to amend for recalculations they are doing at their end.
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