Printable Form 2026

IRS Publication 5199 – Tax Preparer Guide to Identity Theft

IRS Publication 5199 – In an era where data breaches and cyber threats are increasingly common, tax preparers play a crucial role in safeguarding client information and addressing identity theft issues. IRS Publication 5199, titled “Tax Preparer Guide to Identity Theft,” serves as a vital resource for professionals navigating these challenges. Released by the Internal Revenue Service (IRS), this guide equips tax preparers with the knowledge to identify, prevent, and resolve tax-related identity theft cases. Whether you’re a seasoned CPA or a new tax professional, understanding this publication can help protect your clients and your practice from the growing risks of identity fraud.

This article explores the key elements of IRS Publication 5199, drawing from official IRS sources to provide up-to-date insights. We’ll cover its purpose, main sections, warning signs, assistance strategies, and related resources to help you stay compliant and proactive.

What Is IRS Publication 5199?

IRS Publication 5199 is a concise guide designed specifically for tax preparers to assist clients who fall victim to tax-related identity theft. First published with its latest revision in August 2017 (Rev. 8-2017), it outlines the IRS’s efforts to prevent, detect, and resolve identity theft while reducing resolution times. The document emphasizes the importance of tax professionals in supporting affected individuals and businesses, ensuring they continue to meet their tax obligations amid investigations.

The guide is available as a free PDF download from the IRS website and is part of a broader suite of resources aimed at enhancing data security in the tax industry. As of 2026, this revision remains the most current version, with no major updates noted in recent IRS reviews.

Tax-related identity theft occurs when someone uses stolen personal information, such as a Social Security number (SSN), to file fraudulent tax returns or commit other tax crimes. This can lead to delayed refunds, unexpected tax bills, or IRS notices for victims. Publication 5199 defines it clearly and stresses that early detection is key to minimizing damage.

According to the guide, the IRS is committed to combating this issue through advanced detection systems and streamlined resolution processes. Tax preparers are encouraged to educate clients on the risks and maintain vigilant practices to prevent breaches.

Warning Signs of Identity Theft for Clients

One of the core sections of Publication 5199 focuses on recognizing red flags, divided into individual and business clients.

For Individual Clients

  • E-file rejection due to a duplicate SSN already used on another return.
  • Unexpected IRS notices about account activity, such as a refund issued or balance paid without the client’s knowledge.
  • Notices indicating earnings from an unknown employer.

For Business Clients

  • The business tax return is processed as an amended return, even though no original return was filed.
  • IRS notices about fictitious employees or unexplained activity.
  • Communications regarding a closed or dormant business after all balances have been settled.

Tax professionals should monitor for these signs during return preparation and advise clients to act immediately if they appear.

How Tax Preparers Can Assist Victims?

Publication 5199 provides practical steps for tax preparers to help clients resolve identity theft issues efficiently.

  • Authentication and Authorization: Always have a power of attorney (Form 2848) on file and verify client identity before accessing IRS information.
  • Respond to Notices: Advise clients to reply promptly to any IRS correspondence.
  • File Form 14039: If an e-file is rejected due to a duplicate SSN, complete the Identity Theft Affidavit (Form 14039), attach it to a paper return, and mail it to the IRS.
  • Continue Filing: Encourage clients to file returns and pay taxes on time, even if it means switching to paper filing during the investigation.
  • Seek Specialized Help: If prior issues remain unresolved, call the IRS Identity Theft Victim Assistance line at 800-908-4490.
  • Business-Specific Guidance: Direct business clients to irs.gov/BusinessIDT for tailored resources.

Additionally, broader IRS guidance recommends reporting suspected data theft to local IRS stakeholder liaisons and state tax agencies for immediate action.

IRS Victim Assistance and Resources

The publication details IRS support mechanisms, including dedicated victim assistance programs. Clients can file complaints at IdentityTheft.gov to obtain a recovery plan, place fraud alerts with credit bureaus (Equifax, Experian, TransUnion), and review credit reports to close unauthorized accounts.

Resources for Tax Preparers

  • IRS e-Services for monitoring Electronic Filing Identification Numbers (EFINs) and Preparer Tax Identification Numbers (PTINs).
  • Publication 4557: Safeguarding Taxpayer Data, which includes a security plan checklist.
  • Publication 5293: Data Security Resource Guide for comprehensive protection strategies.

Resources for Everyone

  • FTC’s IdentityTheft.gov for general recovery steps.
  • Credit bureau contacts for fraud alerts.

The IRS also promotes awareness campaigns like “Protect Your Clients; Protect Yourself” (updated in Summer 2024) to reinforce best practices.

Preventing Identity Theft: Best Practices for Tax Preparers

While Publication 5199 focuses on response, complementary IRS resources emphasize prevention. Federal law requires all tax professionals to have a written information security plan. Key tips include:

  • Use multi-factor authentication for all accounts.
  • Install and update anti-virus software.
  • Employ strong, unique passwords and password managers.
  • Encrypt sensitive files and emails.
  • Avoid phishing scams by verifying emails and never clicking suspicious links.
  • Monitor e-file acknowledgements and EFIN activity regularly.

By integrating these measures, tax preparers can reduce the risk of data breaches, which often stem from spear-phishing emails.

Why IRS Publication 5199 Matters in 2026?

With identity theft cases on the rise, staying informed through IRS Publication 5199 is essential for tax preparers to maintain trust and compliance. This guide not only helps resolve issues but also aligns with the IRS’s ongoing Security Summit initiatives to protect the tax ecosystem. Download the PDF today from the official IRS site and review it alongside updated resources to ensure your practice is prepared for tax season.

For more details, visit IRS.gov or consult the latest identity theft information for tax professionals. By prioritizing data security, you can help your clients avoid the headaches of identity theft and focus on their financial well-being.