IRS Letter 6419
In January 2022, the IRS will send you Letter 6419 to provide the total amount of advance Child Tax Credit payments that were disbursed to you during 2021. Please keep this letter regarding your advance Child Tax Credit payments with your tax records. You may need to refer to this letter when you file your 2021 tax return during the 2022 tax filing season.
For more information go to this link: IRS ACTC