IRS Letter 5071C: identity and return verification
Last updated · Reviewed for accuracy against IRS.gov guidance
Letter 5071C, part of the CP5071 series, means a return was filed with your Social Security number or ITIN and the IRS needs you to verify your identity and the return. If you filed it, verify so processing continues. If you didn't, verify and report it — you may be an identity-theft victim.
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What does a Letter 5071C mean?
The CP5071 series (CP5071, 5071C and CP5071F) is the IRS's most common identity-verification notice. If your notice offers online verification, you can start at irs.gov/verifyreturn using an IRS online account. You'll need the return listed on the notice, a prior-year return if you filed one, and supporting documents like W-2s, 1099s and Schedules C and F. If you can't verify online, the notice explains how to call.
Where does Letter 5071C fit in the IRS process?
Identity-verification letters are not collection notices. The IRS holds the return — and any refund — until you confirm who you are. If you don't respond, the return generally isn't processed, which can lead to later balance or missing-return notices.
How do I know a Letter 5071C is real?
Scam letters copy IRS formatting, so confirm a Letter 5071C before acting on it. Log in to your IRS Online Account — most notices, balances and payment history appear there — or request an account transcript. A genuine notice shows a notice or letter number (usually in the top or bottom right corner), the tax year, and explains your rights. If you call, use a number you find on IRS.gov, not a number printed only on a letter you're unsure about. The IRS doesn't demand payment by gift card, prepaid debit card, cryptocurrency or wire to an individual, and it doesn't threaten immediate arrest.
How long do I have to respond to a Letter 5071C?
Follow the notice's instructions promptly; the IRS holds the return until you verify.
How do I dispute a Letter 5071C?
There's nothing to dispute — you're simply confirming your identity. If you didn't file the return in question, say so when you verify; the IRS will remove the fraudulent return from your account, and you may want an Identity Protection PIN for future filings.
What happens if I ignore a Letter 5071C?
The return isn't processed, refunds are held, and the IRS may eventually treat the year as unfiled.
What else should I do after a Letter 5071C?
Once your identity is verified, check your IRS Online Account to confirm the return was processed. If someone else filed using your information, file Form 14039 if the IRS asks you to, request an Identity Protection PIN for future years, and watch for related notices. If the return shows you owe, the payment options are the same as any balance: a short-term plan of up to 180 days, an installment agreement for balances of $50,000 or less online, or Currently Not Collectible status in a hardship.
Who can help with a Letter 5071C for free?
You don't need to pay anyone to respond to a Letter 5071C. The Taxpayer Advocate Service, an independent organization inside the IRS, helps people whose problems aren't being resolved through normal channels or who face significant hardship. Low Income Taxpayer Clinics offer free or low-cost representation to eligible taxpayers, including in disputes with the IRS. Volunteer programs such as VITA can help prepare missing returns. If you do hire paid help, choose a credentialed professional — a CPA, enrolled agent or attorney — who can represent you before the IRS with Form 2848, and be wary of anyone who guarantees an outcome, demands large upfront fees, or tells you to stop communicating with the IRS. See red flags to watch for.
Step-by-step: responding to a Letter 5071C
- Read the whole notice and note the date, tax year and any deadline.
- Verify it in your IRS Online Account or with a transcript.
- Gather records — the return, payment proof and any documents the notice mentions.
- Decide: agree and pay/verify, dispute with documentation, or request the hearing or appeal the notice describes.
- Respond in writing or by the method shown, before the deadline, and keep copies and proof of mailing.
- Get help if needed. You can authorize a CPA, enrolled agent or attorney with Form 2848, and the Taxpayer Advocate Service or a Low Income Taxpayer Clinic may help for free.
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Start the calculatorFrequently asked questions
Can I verify 5071C online?
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If your notice says so, yes — at irs.gov/verifyreturn.
Why was my return flagged?
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IRS filters look for patterns associated with identity theft; being flagged doesn't mean you did anything wrong.
Is 5071C related to an audit?
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No. It's identity verification, not an examination.
What if I can't pass online verification?
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Follow the phone instructions on your notice; in some cases the IRS may ask you to verify in person at a Taxpayer Assistance Center.
Can I call the number on my Letter 5071C?
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Confirm the number on IRS.gov first. Legitimate IRS notices list a number, but scammers copy letters, so cross-check before sharing information.
Should I hire a tax relief company for a Letter 5071C?
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Not necessarily. Many people resolve notices themselves. If you hire help, choose a credentialed CPA, enrolled agent or attorney and avoid anyone who guarantees a result.
Is this site affiliated with the IRS?
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No. We're an independent educational site. Always rely on the official IRS page for your notice, linked in the sources below.
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Sources
IRS figures on this page (rates, fees, thresholds) verified as of 2026-11-04. See our editorial policy.
TaxSettlementCalculator.com is not a tax firm, law firm, CPA, or government agency and is not affiliated with the IRS or any state tax agency. Estimates are for educational purposes only and are not tax, legal, or financial advice. Results vary based on individual circumstances, and no outcome is guaranteed. We connect users with independent tax relief professionals.
