An 810 freeze stops the IRS from releasing your refund while they verify your identity or investigate potential fraud

When the IRS places an 810 freeze on your tax refund, it means your return has been flagged for additional review before any money moves. The "810" is an internal IRS code — you won't see it on official letters, but tax professionals and IRS agents use it to describe this specific hold. The freeze is not a denial. It is a pause while the IRS confirms who you are, checks for duplicate filings, or looks into inconsistencies between what you reported and what employers or financial institutions reported about you.

The most common reason for an 810 freeze is identity verification. The IRS receives millions of returns each year and uses automated systems to catch returns that match patterns associated with identity theft — unusual filing locations, mismatched Social Security numbers, returns filed from multiple addresses in a short time, or income amounts that don't align with prior years. When a return triggers these flags, the IRS holds the refund and sends you a letter asking you to prove you filed the return yourself.

A second common trigger is a math error or missing information on the return itself. If you claimed a dependent without a valid Social Security number, reported income that doesn't match what your employer reported on a W-2, or made a calculation mistake, the IRS may freeze the refund to correct the error before releasing it. In these cases, the IRS often corrects the error on your behalf and releases the refund — but the freeze still causes a delay.

Key Takeaways

  • An 810 freeze is an IRS hold on your refund while they verify your identity or investigate inconsistencies in your return.
  • The IRS will send you a letter explaining why your return is frozen and what documents or steps are needed to release it.
  • Identity verification freezes typically require you to call the IRS or respond to a letter with proof that you filed the return yourself.
  • A freeze can last anywhere from a few weeks to several months, depending on how quickly you respond and how backed up the IRS verification team is.
  • You cannot force the IRS to release a frozen refund, but you can check the status of your return using the IRS Where's My Refund tool or by calling the IRS directly.

How to know if your refund is frozen

The IRS does not use the term "810 freeze" in any letter or notice sent to you. Instead, you will receive a notice titled CP05H, CP05, or CP75 — these are the actual letter codes the IRS uses to tell you your return needs review. The letter will explain the reason for the hold and what you need to do next. Read the letter carefully, because the steps differ depending on whether the IRS is asking you to verify your identity, provide missing documents, or straightforward confirm information.

If you have not received a letter but suspect your refund is frozen, check the status using the IRS Where's My Refund tool at irs.gov. Enter your Social Security number, filing status, and the exact refund amount shown on your return. If the tool shows "Your return is being reviewed" or "We received your return but need more information," your refund is likely on hold. The tool will also tell you whether the IRS has mailed you a letter and what date to expect it.

You can also call the IRS directly at 1-800-829-1040 during business hours (Monday through Friday, 7 a.m. to 7 p.m. your local time). Have your Social Security number, filing status, and the refund amount ready. The IRS phone lines are often busy during tax season, so expect to wait. If you cannot reach the IRS by phone, you can visit a local IRS office in person, though appointments are limited and must be scheduled online at irs.gov.

What to do if you receive a freeze notice

The action you take depends on the type of notice you receive. If the IRS is asking you to verify your identity, the letter will include instructions on how to do so. Most commonly, you will be asked to call a specific IRS number listed on the notice and answer security questions to confirm you filed the return. Some notices direct you to create an account on irs.gov and upload documents — typically a copy of your driver's license or passport, plus proof of your address (a recent utility bill or bank statement). Follow the exact instructions in your letter, because different notices have different requirements.

If the notice says the IRS found a discrepancy or error on your return, the letter will explain what was wrong. In many cases, the IRS will correct the error themselves and release your refund without requiring you to do anything. However, if the error involves a dependent, a large deduction, or a credit you claimed, the IRS may ask you to provide supporting documents — such as a birth certificate for a dependent, receipts for business expenses, or proof of education costs for a tuition credit. Send only what the letter asks for, and keep copies for your records.

Do not ignore the notice. If you do not respond within the timeframe stated in the letter (usually 30 days), the IRS may deny your refund claim or reduce your refund amount. If you miss the important date, you can still respond — the IRS will not permanently close your case — but the delay will be longer.

How long an 810 freeze typically lasts

There is no fixed timeline for an 810 freeze. If the IRS is straightforward verifying your identity by phone, the hold may be lifted within a few days of your call. If you need to mail in documents, the process usually takes 4 to 8 weeks from the time the IRS receives your response — longer if the IRS is backed up or if they need to request additional information from you.

During tax season (January through May), the IRS processes millions of returns and verification requests pile up. A freeze that might take 3 weeks in July could take 8 weeks in March. If your return involves a complex issue — such as a business loss, a large charitable deduction, or an amended return — the freeze may last several months while the IRS conducts a more thorough review.

You can check the status of your frozen return using Where's My Refund every few days. The tool updates once per day, usually overnight. If the status changes to "Your refund has been approved" or "Your refund was deposited," the freeze has been lifted. If the status remains unchanged for more than 30 days after you responded to the IRS notice, contact the IRS again to confirm they received your documents.

The difference between an 810 freeze and an audit

An 810 freeze and a tax audit are not the same thing, though both involve the IRS holding your refund. A freeze is a temporary hold while the IRS verifies information or corrects errors. An audit is a formal examination of your return, and it can result in the IRS asking you to prove every deduction and credit you claimed. An audit typically takes much longer than a freeze — often several months — and may result in you owing money instead of receiving a refund.

If you receive a notice that says "audit" or "examination," you are being audited, not straightforward frozen. The IRS will explain what items on your return they want to examine and what documents you need to provide. Audits are less common than freezes. Most frozen returns are released after identity verification or error correction, without ever becoming audits.

What you cannot do while your refund is frozen

You cannot force the IRS to release a frozen refund by calling repeatedly, filing a complaint, or requesting a supervisor. The IRS will not accelerate the review process based on financial hardship, even if you need the money urgently. The freeze remains in place until the IRS completes their verification or investigation, regardless of your circumstances.

You also cannot dispute an 810 freeze through the IRS Office of Appeals or by filing a claim in tax court. The freeze is not a decision — it is a procedural hold. Once the IRS completes their review and makes a decision about your refund, you can dispute that decision if you disagree with it. Until then, the freeze stands.

If you believe the freeze is in error — for example, if you received a notice asking you to verify your identity but you are certain you already did so — contact the IRS and explain the situation. Provide the date you verified your identity and any confirmation number or reference number you received. The IRS may be able to clear the freeze if they can locate your verification in their system.

Frequently Asked Questions

Can I get my refund before the freeze is lifted?

No. The IRS will not release any part of a frozen refund until the hold is removed. You cannot request an advance or partial payment. Once the freeze is lifted, the refund is typically deposited within 1 to 3 business days if you chose direct deposit, or mailed within 2 to 3 weeks if you chose a check.

What if I never received the IRS letter about the freeze?

Check the Where's My Refund tool to see if the IRS has mailed a letter and when to expect it. If the tool says a letter was sent but you did not receive it, contact the IRS to confirm your mailing address. The IRS may resend the letter or allow you to respond by phone instead.

Does an 810 freeze mean I committed fraud?

No. A freeze is a routine verification step, not an accusation. The IRS freezes millions of returns each year for identity verification alone. Most freezes are lifted after you confirm you filed the return. A freeze does not mean you are under investigation for fraud.

Can a tax professional or CPA help me get the freeze lifted?

Yes. If you have a CPA or tax professional who prepared your return, they can contact the IRS on your behalf using a Power of Attorney form (Form 2848). This allows them to discuss your return with the IRS and respond to notices without you being present. However, the IRS still needs to verify your identity directly in most cases, so you may still need to make a phone call or provide documents yourself.

What happens if I don't respond to the IRS notice?

If you do not respond within the timeframe in the notice (usually 30 days), the IRS may disallow your refund claim and keep the money. However, you can still respond after the important date — the IRS will not permanently close your case. The longer you wait, the longer the freeze lasts.