An 810 freeze stops your refund because the IRS matched information on your return to a prior-year claim
An 810 refund freeze is an IRS hold placed on your return when the agency detects that someone else has already claimed the same dependent, tax credit, or income on an earlier tax year. The IRS uses automated matching to catch duplicate claims — typically for the Earned Income Tax Credit (EITC), Child Tax Credit, or dependent exemptions. When the system flags a match, it freezes your refund pending manual review.
The freeze itself is not a rejection. It means your return is in a queue waiting for an IRS employee to examine both claims side by side and determine which one is valid. During this time, your refund does not move forward. The hold can last anywhere from a few weeks to several months, depending on IRS processing volume and the complexity of your situation.
You cannot remove an 810 freeze yourself. Only the IRS can lift it after they complete their review. What you can do is provide documentation that supports your claim and understand what the IRS is actually checking.
Key Takeaways
- An 810 freeze happens when the IRS finds a matching claim from a prior year — usually for a dependent, EITC, or tax credit — and needs to verify which return is correct.
- The IRS will contact you by mail if they need additional documents; do not wait for a phone call or email, as the IRS initiates contact through postal mail only.
- Common reasons for 810 freezes include a dependent claimed by two parents, EITC claimed in back-to-back years when only one year qualifies, or income reported under different names or Social Security numbers.
- If you have documentation proving your claim is valid — custody papers, divorce decrees, proof of residency — gather it now and respond when ready when the IRS requests it.
- Processing time after the IRS receives your response typically ranges from four to eight weeks, though delays can extend this.
Why the IRS matched your return to a prior claim
The IRS computer system compares every return filed against prior-year returns and against returns filed by other taxpayers in the same tax year. When it finds the same dependent, credit, or income reported twice, it flags the newer return for review. This is most common with dependent claims because a child can only be claimed by one taxpayer per year, but the system cannot always tell which parent has the legal right to claim them.
EITC freezes happen frequently when someone claims the credit in consecutive years. The EITC has strict rules about how many years you can claim it for the same child, and the IRS verifies you have not exceeded the limit. If your prior return showed EITC for a child and your current return does too, the system flags it automatically.
Income mismatches also trigger 810 freezes. This occurs when W-2 or 1099 income is reported under slightly different names or Social Security numbers — for example, if you filed under a married name one year and a maiden name the next, or if an employer reported your income with a typo in your name. The IRS sees two different identities claiming the same income and holds the return to verify they are the same person.
What documents the IRS will ask for
The IRS will send you a letter — usually within two to four weeks of filing — requesting specific documents. The letter will specify exactly what they need. Do not guess. Read the letter carefully and provide only what they ask for, because submitting extra documents can slow the process.
For dependent claims, the IRS typically requests a copy of your custody agreement, divorce decree, or court order showing you have the legal right to claim the child. If there is no formal custody document, they may ask for proof of residency — utility bills, lease agreements, or school enrollment records showing the child lived with you for more than half the year. Keep originals and send copies only.
For EITC disputes, the IRS asks for proof that the child lived with you and that you paid more than half their living expenses. This means receipts for rent or mortgage, utility bills, grocery receipts, childcare invoices, and medical bills. They want to see that you were the primary financial supporter.
For income mismatches, you may need to provide a letter from your employer explaining the name discrepancy, or a copy of your Social Security card and driver's license showing your legal name. If you changed your name, bring the marriage certificate or court order documenting the change.
How to respond to an IRS 810 notice
When the IRS sends you a notice, it will include a important date — usually 30 days from the date on the letter. This important date is firm. Missing it can result in your refund being denied entirely. Mark the date on your calendar and respond at least one week before the important date to account for mail delays.
Send your response to the address listed on the notice, not to a general IRS office. The notice will have a specific department or processing center address. Include a cover letter with your name, Social Security number, the tax year in question, and a brief explanation of why your claim is valid. For example: "I am the custodial parent of [child's name] and have provided custody documentation below."
Make copies of everything you send. Do not send originals. Use certified mail with return receipt so you have proof the IRS received your package. Keep the receipt and the return receipt in a safe place — you may need them if the IRS claims they never got your documents.
Do not call the IRS to follow up on your response. They will contact you by mail once they have reviewed your documents. Calling will not speed the process and may create confusion about which documents you sent.
Timeline from freeze to resolution
After you file your return, the IRS typically identifies the matching claim within one to three weeks. You will receive a notice in the mail shortly after. From the date you receive the notice, you have 30 days to respond. This means the actual clock starts when the letter arrives at your address, not when it is mailed.
Once the IRS receives your response, they send it to the appropriate department for manual review. This review can take four to eight weeks, depending on how many similar cases are in the queue and how straightforward your documentation is. If your documents clearly support your claim, the review moves faster. If the IRS needs clarification, they will send you another letter asking for more information, which resets the timeline.
After the IRS completes their review, they will send you a final notice by mail. If they determine your claim is valid, they will release your refund within one to two weeks of that notice. If they deny your claim, the notice will explain why and provide instructions for appealing.
| Stage | Typical Timeline |
|---|---|
| Return filed to freeze notice mailed | 1–3 weeks |
| Notice arrives at your address | 3–7 days after mailing |
| Your important date to respond | 30 days from notice date |
| IRS review of your documents | 4–8 weeks after receipt |
| Final notice mailed to you | 1–2 weeks after review completion |
| Refund issued (if approved) | 1–2 weeks after final notice |
What to do if you did not receive an IRS notice
If your return has been frozen for more than four weeks and you have not received a notice, check your mailing address with the IRS. Go to IRS.gov and use the "Where's My Refund" tool, which will tell you if your return is frozen and whether the IRS has mailed a notice. If the tool shows a notice was mailed but you never received it, the letter may have been lost in the mail.
Contact the IRS at 1-800-829-1040 to request a replacement notice. Have your Social Security number, filing status, and the exact refund amount ready. The IRS can remail the notice or provide the information over the phone. Ask them to confirm the important date for your response and write it down.
If you have moved since filing, update your address with the IRS when ready. Go to IRS.gov, log into your account, and update your mailing address in the taxpayer portal. This ensures any future correspondence reaches you.
If the IRS denies your claim
If the IRS reviews your documents and determines the other claim is valid, they will deny your refund and send you a notice explaining the reason. The notice will include information about your right to appeal. You have the right to dispute the IRS decision, but you must act within the timeframe specified in the notice — typically 30 days.
To appeal, you can request a conference with the IRS Appeals Office by following the instructions in the denial notice. You will need to submit additional documentation or a written statement explaining why you believe your claim is correct. An appeals officer will review your case independently of the original reviewer.
If you believe the other person fraudulently claimed your dependent or credit, you can also file a report with the IRS Identity Theft department. Go to IRS.gov and search for "report identity theft" to find the appropriate form and instructions.
Frequently Asked Questions
Can I get my refund before the IRS finishes reviewing my claim?
No. The IRS will not release any portion of your refund while the 810 freeze is active. You must wait for the review to complete and the freeze to be lifted. There is no process to request an early partial refund.
What if the other person claiming my dependent is my ex-spouse?
Custody and dependency rights are determined by your divorce decree or custody agreement, not by who filed first. Provide a copy of the court order showing you have the right to claim the child. If the decree states you alternate years, make sure your current return matches the year you are may have access to to claim.
Do I need a tax professional to respond to an 810 notice?
You do not need one, but a tax professional can help you gather and organize documents. If you are unsure what the IRS is asking for or how to respond, a CPA or tax attorney can review the notice and advise you. Many offer free or low-cost consultations.
Will the 810 freeze affect my credit or future tax returns?
A 810 freeze does not affect your credit score. It is a refund hold, not a debt or delinquency. Future returns will not be automatically frozen, though if you file another return with a matching claim, the system may flag it again.
What if I filed jointly with my spouse and only one of us is affected by the freeze?
The freeze applies to the entire return, not to individual taxpayers. Both spouses must wait for the review to complete before any refund is issued. However, if the IRS determines the claim is invalid, only the person who made the claim may face consequences — your spouse's portion of the refund may still be processed separately in some cases. Ask the IRS to clarify this in your response letter.