The IRS will issue information letters to Advance Child Tax Credit (ACTC) recipients. To help taxpayers reconcile and receive all of the Child Tax Credits (CTC) to which they are entitled, the IRS will send Letter 6419 (2021 Advance CTC). The letter will include the total amount of ACTC payments taxpayers received in 2021 and the number of qualifying children used to calculate the advance payments. Taxpayers should keep this and any other IRS letters about ACTC payments with their tax records. Families who received advance payments will need to file a 2021 tax return and compare the CTC payments they received in 2021 with the amount of the CTC they can properly claim on their 2021 tax return. People who received the advance CTC payments can also check the amount of their payment using the CTC update portal available on www.IRS.gov.