See this IRS news post concerning the unemployment compensation exclusion for tax year 2020 - https://www.irs.gov/newsroom/irs-completes-automatic-corrections-of-tax-year-2020-accounts-related-t...
If a taxpayer is eligible for the unemployment compensation exclusion and their account was not corrected by the IRS, they may need to file an amended 2020 tax return to claim the exclusion and any applicable non-refundable or refundable credits impacted by the exclusion.
See this TurboTax support FAQ for amending a tax return - https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/amend-change-correct-return-a...
