There is nothing you need to do for the unemployment compensation exclusion. The IRS is calculating tax refunds for those who are eligible for the exclusion. The IRS has started to issued tax refunds for the exclusion starting in May and will continue throughout the summer months.
Go to these IRS websites for information -
https://www.irs.gov/newsroom/irs-sending-more-than-2-point-8-million-refunds-to-those-who-already-pa...
https://www.irs.gov/newsroom/irs-begins-correcting-tax-returns-for-unemployment-compensation-income-...
https://www.irs.gov/newsroom/2020-unemployment-compensation-exclusion-faqs
