For those of you who had unemployment in 2020 and filed prior to mid-March, you probably paid taxes on the full amount of unemployment. The tax law changed to exclude the first $10,200 of unemployment as taxable. For a married couple there is a $10,200 exclusion for each person.
The IRS is stating that you DO NOT need to do an amendment. They will be able to make the adjustments internally and issue additional refunds starting in May and continuing into the summer.