If you lost your IRS Letter 6419, you can still get the advance Child Tax Credit payment total you need for your 2021 return by logging in to your IRS online account, which stores the same figure the letter reported. The IRS does not mail a replacement letter, but the number itself is what matters, and the online account is the authoritative source. One boundary to note before you spend time on this: the deadline to claim a refund on a 2021 return generally closed around April 2025, so if you are filing now, it is likely to clear a balance or respond to a notice rather than to collect money back. The payment figure still matters in that situation because it affects what the IRS says you owe.
Get the Number From Your IRS Online Account
Your IRS online account is the single best place to find your advance Child Tax Credit total. The IRS says that if the amount on Letter 6419 ever differed from what the online account showed, the online account controlled because it carried the most current information.1Internal Revenue Service. Advance Child Tax Credit Payments in 2021 So the online figure is not a workaround; it is the number you would have wanted to confirm even if the letter were still on your kitchen table.
Go to irs.gov and open “Your Online Account.” First-time users have to verify identity through ID.me or Login.gov. ID.me asks for a photo of a government-issued ID such as a driver’s license or passport and a selfie taken with a smartphone or webcam so the system can match your face to the document.2Internal Revenue Service. New Identity Verification Process to Access Certain IRS Online Tools and Services Once you are in, open the tax records section and find your 2021 tax year information. Your advance Child Tax Credit total will be listed there. Screenshot it or write it down before you close the page, and use that figure on Schedule 8812.
Married Filing Jointly: Add Both Spouses’ Amounts
If you are filing a joint 2021 return, this is where mistakes happen. The IRS sent a separate Letter 6419 to each spouse, and each letter showed only that spouse’s half of the advance payments. You have to add the two halves together and enter the combined total on the joint return.1Internal Revenue Service. Advance Child Tax Credit Payments in 2021
If both letters are gone, each spouse has to log in to their own IRS online account. You cannot see your spouse’s payment information from your own account. Both figures, added, become the number that goes on your return.
Call the IRS If You Can’t Use the Online Account
The IRS individual line is 1-800-829-1040, open 7 a.m. to 7 p.m. Monday through Friday in your local time zone.3USAGov. Contact the IRS for Questions About Your Tax Return Tell the representative you need your total advance Child Tax Credit payments for 2021. Have your Social Security number, date of birth, and filing status ready for identity verification.
The representative can read the figure to you over the phone. They cannot mail a replacement Letter 6419. Write the number down carefully while you are on the call. Hold times run long during filing season; early morning and later in the week tend to be shorter.
Don’t Use a Tax Transcript for This
The IRS has specifically told taxpayers not to use tax transcripts to determine their advance Child Tax Credit payment total.1Internal Revenue Service. Advance Child Tax Credit Payments in 2021 Transcripts are available through the Get Transcript tool or by mailing Form 4506-T, but the advance payment data shown on a transcript may not be the most accurate total for this credit. The online account is the source the IRS points to. The phone line is the backup. A transcript is neither.
What Happens If You File With the Wrong Amount
Filing with a guessed or incorrect advance payment total will not sink your return, but it will hold it up. The IRS matches every return against its own record of what it actually paid out. When the numbers do not line up, the return leaves automated processing and gets corrected by hand, which pushes any refund back by weeks or months.
After the correction, the IRS sends a CP12 notice showing the amount it used, the revised credit, and the updated refund or balance due.4Internal Revenue Service. Understanding Your CP12 Notice If the IRS figure looks wrong to you, the notice explains how to dispute it. The way to skip this entire loop is to pull the correct number from your online account before you file. It takes a few minutes.