IRS Identity Theft Backlog Delays 2025 Refunds
An IRS identity theft backlog is slowing tax refunds for some taxpayers during the 2025 filing season as suspicious tax returns trigger additional identity verification steps. The Internal Revenue Service says the safeguards help prevent tax fraud and refund fraud, but the review process can delay legitimate refunds while cases move through manual investigation.
Tax agency leadership says tax-related identity theft remains a major operational challenge during the tax filing season. Commissioner Danny Werfel told Congress that improving communication with taxpayers and simplifying identity verification notices are now priorities as the agency works through a large inventory of suspected identity theft cases.
According to officials, updates to notices issued through the Taxpayer Protection Program aim to speed up taxpayers' responses to IRS notices. Clearer instructions could reduce delays tied to identity verification during the tax year.
These improvements are part of broader anti-fraud efforts coordinated through the Security Summit, a partnership involving federal agencies, tax software companies, and tax professionals focused on preventing tax scams and protecting taxpayers' personal information.
The agency has expanded pilot programs testing clearer notices, including Letters 5071C, 4883C, and 5747C. These letters are issued when fraud filters detect suspicious activity involving a Social Security number or taxpayer identification number.
Taxpayers receiving these notices may be asked to confirm their identity using the Identity and Tax Return Verification Service or the online verification tool available through an online account using ID.me login information.
Some letters may also require taxpayers to visit a Taxpayer Assistance Center if identity proofing requirements cannot be completed through the Return Verification Service.
Tax-related identity theft often begins when criminals obtain personal information through phishing emails, phishing scams, data breaches, or other methods, such as intercepting public Wi-Fi or ATM skimming. Fraudsters then file a fraudulent electronic tax return using a stolen Social Security number before the legitimate taxpayer files.
The fraudulent filing may claim a refund using wage information from Form W-2 or Form 1099 documents submitted to the Internal Revenue Service. Returns are scanned by fraud filters designed under the Fraud Risk Framework and the Fraud Reduction and Data Analytics Act of 2015.
Upon detecting suspicious patterns, processing halts until the legitimate taxpayer's identity is verified.
Many taxpayers discover ID theft when their electronic tax return is rejected because a return has already been filed under their Social Security number or individual taxpayer identification number.
In some situations, taxpayers may also receive unexpected collection notices, CP2000 series notices, or account flags, such as code 570 or code 971, appearing on a tax transcript.
Officials say these warning signs may indicate tax fraud or misuse of financial information, and taxpayers should review their credit reports and monitor fraud alerts from credit bureaus.
Verification notices are a key part of fraud prevention during the filing season. The CP5071 series notice and similar IRS notice letters request identity verification before processing can continue.
These notices typically appear when fraud filters flag a suspicious Form 1040 or another Form 1040-series filing that requires confirmation through the Identity and Tax Return Verification Service.
A CP5071 series notice instructs taxpayers to confirm their identity using the online verification tool or the Tax Return Verification Service.
The system asks taxpayers to provide details from prior tax returns, including adjusted gross income from the previous tax year.
Once identity verification is completed, the return may continue through the normal processing cycle time and refund review process.
Letter 4883C usually requires taxpayers to verify their identity by phone with an agency representative, while Letter 5747C may require an in-person appointment at a Taxpayer Assistance Center.
During the verification process, taxpayers may be asked about details from Form 1040, business-related tax forms, or other documents to confirm that the return is theirs.
When identity theft is confirmed, cases are typically transferred to the IDTVA (Identity Theft Victim Assistance) program. Specialists review affected tax accounts, remove fraudulent returns, and ensure legitimate filings are processed correctly.
An identity theft indicator may also be added to the taxpayer’s account to prevent future fraudulent filings.
Taxpayers may also need to submit Form 14039, the Identity Theft Affidavit, to report suspected ID theft and begin an investigation.
Someone should file the Identity Theft Affidavit when they believe a fraudulent return was filed using their Social Security number or individual taxpayer identification number.
Taxpayers can submit Form 14039 or an Identity Theft Affidavit PDF when directed by the agency.
For additional assistance, taxpayers may contact the Taxpayer Advocate Service or seek TAS help if delays create financial hardship. The Taxpayer Advocate works independently within the Internal Revenue Service to help resolve complex cases.
Officials encourage taxpayers to use preventive tools designed to reduce tax fraud risks. One of the most widely recommended options is the Identity Protection PIN, also called an IP PIN or Individual Protection PIN.
The six-digit number must be included when filing an electronic tax return or paper tax return under a taxpayer’s Social Security number.
Without the correct IP PIN, the return will not be accepted during the tax filing season.
Taxpayers are encouraged to monitor their credit report, place fraud alerts or a credit freeze with credit bureaus, and watch for warning signs such as unexpected IRS mail or unfamiliar financial activity.
Consumers who believe they are victims of identity theft can report the issue to the Federal Trade Commission and follow guidance provided by the Taxpayer Advocate Service.
Officials say public awareness campaigns, such as National Tax Security Awareness Week, and collaboration with tax professionals help reduce identity theft incidents. Even so, agency reports from FY 2021 through FY 2025 show identity theft remains a persistent challenge for tax administration.
By William Mc Lee, Editor-in-Chief & Tax Expert—Get Tax Relief Now