found this with the help of Google....  

The American Rescue Plan Act of 2021 made several changes to the Earned Income Tax Credit. Some of these changes are temporary for the 2021 tax year only others are permanent.

For 2021 only, more childless workers and couples can qualify for the Earned Income Tax Credit (EITC). The maximum credit is nearly tripled for these taxpayers and is made available to both younger workers and senior citizens. The age limit for “childless EITC,” which had been 25 to 64, is now lowered to 19 (age 24 for specified students) with no upper limit. Qualified former foster youth or a qualified homeless youth may now qualify at age 18.

So no upper age limit - over 65 CAN claim EITC for 2021

Edit to add this:   https://www.taxpayeradvocate.irs.gov/get-help/credits/claiming-the-eitc/