FIRST ... do not amend anything until the original return has been fully processed. The IRS will automatically recompute the return and send the extra refund amount either after the original amount was sent or with the original refund amount.
If you had no qualifying dependents and you now qualify for the EIC that was not on the return originally then they will compute it and add it to the refund ... there is nothing you need to do.
However if you had qualifying dependents AND you did NOT qualify for the EIC on the original return they will mail you a new form 15111 to fill in, sign and return so they can add the EIC to your return. WAIT for the IRS notice ... do NOT amend for this credit.
NOW ... if you are eligible for another credit like the form 8880 Saver's Credit and it was not on the original return then you may amend to get the missing deductions or credits but ONLY AFTER the IRS finishes their part. Filing an amended return too early will delay processing even further than the currently estimated 6 months.
LASTLY ... you may need to amend the state return but again do nothing until the federal has finished.
Please see I need to amend my state return for instructions.
Please wait until your state return has been processed before filing the amended state. Please be aware that you can e-file your 2020 amended federal tax return, but most states require amendments to be printed and filed by mail.
