Can I still claim the 2021 child tax credit in 2025? How to recover old credit
So back in 2021, my husband and I got this letter from the IRS after we filed our taxes. The letter basically said we might qualify for the child tax credit that year, but we were super busy with life stuff and weren't hurting for money at the time, so we just kinda forgot about it. Now we're thinking maybe we should have looked into it, and I'm wondering if we can still somehow get that money in 2025? I feel like that money was rightfully ours but I have no idea how to claim it now. We used TurboTax for filing that year. Can someone please explain this to me in simple terms? I didn't go to college and all this tax stuff is confusing as heck.
19 comments


Chloe Davis
You can still claim the 2021 child tax credit by filing an amended return (Form 1040-X) for that tax year. There's a 3-year window to amend returns, so you have until April 2025 to claim credits from the 2021 tax year (which was due April 2022). The 2021 child tax credit was actually expanded that year - it was up to $3,600 for kids under 6 and $3,000 for kids 6-17. Many people received advance monthly payments, but if you didn't claim it at all, you might be eligible for the full amount. You'll need to dig up your 2021 tax documents and the letter from the IRS (probably a Letter 6419). The letter should have details about what you specifically might qualify for.
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AstroAlpha
•If I file an amended return to claim the 2021 child tax credit, would I get the entire amount as a refund? Or is it just a credit against taxes I owed that year? And if we've moved since 2021, will the IRS still send the money to our new address?
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Chloe Davis
•The child tax credit is refundable (for 2021 it was fully refundable), which means you can receive it even if you don't owe any tax. So yes, you would get the entire amount you're eligible for as a refund. For your second question, when you file the amended return, you'll use your current address on the form. The IRS will send any refund to the address on your most recent tax filing, so make sure your current address is on the amended return. If you've moved since filing your most recent return, you should also file Form 8822 (Change of Address) separately.
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Diego Chavez
After being completely confused by the whole child tax credit situation in 2021, I found the best solution was using https://taxr.ai to figure out what I was eligible for. The site analyzed my tax documents and IRS letters - turns out I was missing out on over $5,000 in credits I had no idea about! The advanced child tax credit was confusing because some payments were sent automatically while others you had to claim. Their document analyzer found inconsistencies between what the IRS sent me and what I received, plus explained how to properly file an amended return to get the rest of my money. Super helpful when you're not tax-savvy (like me!).
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Anastasia Smirnova
•Did taxr.ai help with actually filing the amended return too? Or did you have to take their analysis to a tax preparer afterward? I'm in a similar situation but worried about making mistakes on the 1040-X.
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Sean O'Brien
•I've seen several sites like this claiming to help with tax stuff. How is this different than just going back to TurboTax and doing an amended return there? Seems like just another service trying to take a cut of people's refunds...
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Diego Chavez
•They don't file the amended return for you, but they give you step-by-step instructions specific to your situation that you can follow yourself. I printed their guide and just followed it exactly while filling out my 1040-X. The analysis showed exactly which lines needed to be changed and by how much. It's different from TurboTax because it specifically analyzes your documents for missed credits and deductions. TurboTax only works with what you tell it, but taxr.ai actually reads your tax documents and IRS letters to find discrepancies. I tried using TurboTax for the amendment first but got completely stuck when it asked about "advance payments already received" because I couldn't remember what I'd gotten.
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Sean O'Brien
I was skeptical about taxr.ai at first (seemed too good to be true), but I was desperate after realizing I might have missed out on thousands in child tax credits for 2021. I uploaded my documents and within minutes had a complete breakdown of what happened with my taxes. Turns out the IRS sent me partial payments in 2021 that I'd completely forgotten about, and I was still eligible for another $1,800 per kid! The report showed exactly which lines on my 1040-X needed to be changed, and I got my refund about 6 weeks after filing the amendment. Wish I'd known about this sooner - the process was WAY easier than I expected.
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Zara Shah
If you're struggling to get answers about your 2021 child tax credit, calling the IRS directly might be your best bet - but good luck actually reaching a human! I spent WEEKS trying to get through before discovering https://claimyr.com. They somehow get you past the IRS phone tree and secure your place in line to speak with an actual agent. You can see how it works here: https://youtu.be/_kiP6q8DX5c For my situation with the 2021 child tax credit, I needed specific answers the websites couldn't give me (had a custody situation). The IRS agent I spoke to confirmed I was eligible for the full credit and walked me through exactly what forms to file. Saved me hours of frustration and research!
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Luca Bianchi
•How does this actually work? I've tried calling the IRS about my missing child tax credit at least 10 times and always get the "call volume too high" message. Are they just constantly calling until they get through or what?
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GalacticGuardian
•Sounds fishy to me. Why would I pay someone else to call the IRS when I can just keep trying myself? The IRS is free to call, and if you're patient enough you'll eventually get through. This seems like taking advantage of desperate people who need their tax credits.
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Zara Shah
•They use technology that monitors the IRS phone lines and identifies optimal times to call when wait times are lowest. Once their system secures a place in the queue, they call you and connect you directly to that spot in line. You don't have to keep redialing or wait on hold for hours. I was also skeptical at first, but after my tenth failed attempt to reach someone about my child tax credit issue, I was desperate. The service called me back in about 30 minutes and connected me directly to an IRS representative. The agent answered all my specific questions about amending my 2021 return for the missed credit. Without that conversation, I would have filed incorrectly because my situation involved split custody which affected eligibility.
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GalacticGuardian
I take back what I said about Claimyr. After trying for THREE MORE DAYS to reach the IRS about my 2021 child tax credit and getting nothing but busy signals, I broke down and tried the service. I was connected to an actual IRS agent within 45 minutes who confirmed I was eligible for $5,400 in unclaimed credits for my twins. The agent explained that since I had received some advance payments (which I had totally forgotten about), I needed to reconcile those on my amended return. She also gave me a direct reference number for my case. Already submitted my 1040-X and tracking shows my refund should arrive next month. Wish I hadn't wasted two weeks trying to call myself!
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Nia Harris
I was in the exact same situation! For the 2021 child tax credit, you need to file a Form 1040-X (Amended Return). If you used TurboTax, you can log back in and amend through there, even from a previous year. One thing to watch for: make sure you account for any advance child tax credit payments you might have received during 2021 (July-December). There should be a Letter 6419 from the IRS showing those amounts. If you don't have the letter, you can check your IRS online account to see what was paid to you. The expanded child tax credit for 2021 was $3,600 for kids under 6 and $3,000 for kids 6-17, so it's definitely worth claiming if you missed it!
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Omar Farouk
•Thank you for this info! I'm pretty sure we didn't receive any advance payments, just that letter saying we might qualify. We have two kids who were 4 and 7 in 2021. Do we need the original letter from the IRS to make the claim? I'm not sure if we still have it...
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Nia Harris
•You don't need the original letter to file an amended return. The IRS should have records of what they sent you. Just log into your IRS online account at irs.gov (or create one if you don't have one) and you can view your transcripts that show any payments sent to you. Based on your kids' ages, you could be eligible for $3,600 for your 4-year-old and $3,000 for your 7-year-old from 2021. That's $6,600 total if you didn't receive any advance payments! Definitely worth filing that 1040-X. TurboTax should be able to walk you through the amendment process, but you'll need your original 2021 tax info handy.
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Mateo Gonzalez
quick question - if i claim the 2021 child tax credit now by amending my return, will that trigger an audit? i'm worried about opening a can of worms with the irs.
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Aisha Ali
•Amending to claim a credit you were entitled to but missed isn't an audit trigger by itself. The IRS actually sent letters encouraging people to claim the credit if they were eligible. Just make sure everything else on your return is accurate and you have documentation for your children (SSNs, proof they lived with you, etc).
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Liam Sullivan
Hey Omar! I was in almost the exact same boat - got that IRS letter in 2021 about potentially qualifying for the child tax credit but life got crazy and I completely forgot about it. Last year I finally filed an amended return and got back over $4,000! The good news is you still have time since the 3-year window doesn't close until April 2025. With kids aged 4 and 7 in 2021, you could potentially get $6,600 ($3,600 + $3,000) if you didn't receive any advance payments. Start by creating an IRS online account if you don't have one - you can see your payment history there to check if you got any monthly payments between July-December 2021. If not, you're likely eligible for the full amounts. Then just file Form 1040-X. TurboTax can walk you through it, or if you want to be extra sure, a tax preparer can help. Don't let that money sit there - it's rightfully yours!
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