The information on these letters will be needed to complete your 2021 income tax returns. Please hold on to it and bring it in when you do your taxes. More information can be found here: www.irs.gov/newsroom/irs-issues-information-letters-to-advance-child-tax-credit-recipients-and-recipients-of-the-third-round-of-economic-impact-payments-taxpayers-should-hold-onto-letters-to-help-the-2022-filing-season