Compliance glossary
Definition

IRS Publication 4557

IRS guidelines outlining data security requirements and best practices for tax professionals handling taxpayer information.

What it means.

IRS Publication 4557 (Safeguarding Taxpayer Data) provides the data security guidelines that all tax professionals must follow to protect taxpayer information. It covers creating a written security plan, employee training, data protection methods, incident response procedures, and physical security measures. The publication aligns closely with the FTC Safeguards Rule and serves as the IRS's baseline expectation for how tax preparers handle sensitive financial data.

Why it matters for CPA firms.

Tax professionals are required to follow IRS Publication 4557 as part of their professional obligations. Failure to comply can result in loss of EFIN (Electronic Filing Identification Number), PTIN suspension, and IRS penalties. The IRS uses these guidelines when investigating data breaches at tax preparer offices and when determining whether a firm took reasonable steps to protect taxpayer data.

Relevant regulations.

  • IRS Publication 4557
  • IRC Section 7216
  • FTC Safeguards Rule (16 CFR 314)

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