Checked against primary sources on 18 October 2026.
Who it applies to
Paid tax return preparers and tax and accounting firms, which the IRS describes as financial institutions under the GLBA and FTC Safeguards Rule regardless of size.
Who checks
The FTC enforces the underlying Safeguards Rule; the IRS asks each preparer to confirm awareness of the WISP duty on Form W-12 at PTIN application and renewal.
How often
Annual PTIN renewal with the W-12 data security question; the IRS sample plan calls for review at least annually and staff acknowledgment at annual training
Current edition
Publication 5708 (Rev. 8-2024); Publication 4557 (Rev. 6-2024); Form W-12 (Rev. October 2025), 2024-08 (Publication 5708). Free to read.
Dates to know
Dates for IRS WISP
Date
What happens
Status
2025-10
Form W-12 revised (Rev. October 2025), keeping line 11 Data Security Responsibilities
Done
2026-10-15
IRS processing 2027 PTIN applications and renewals (page updated)
Done
What IRS WISP asks you to write down
Each one needs an owner, an approval, and proof it reached the people it covers.
IRS Pub 5708; 16 CFR 314.3
Written Information Security Plan
A written, accessible plan sized to the practice, covering objectives and scope, the Qualified Individual, risks, hardware inventory, safety measures and an implementation clause.
Last modified or reviewed date
Named Qualified Individual and authorized users
IRS Pub 5708 outline III; 16 CFR 314.4(b)
Risk assessment
The plan lists the types of information handled, potential areas for internal and external data loss, and procedures to monitor and test those risks.
Information types and loss areas
Monitoring and testing procedures
IRS Pub 5708 Sample Attachment D
Employee and contractor acknowledgment of understanding
The IRS suggests each employee and contractor sign and date an acknowledgment of the WISP policies, renewed at annual training and kept on file.
Signature and date per person
Renewed at each annual training
IRS Pub 5708 Sample Attachments A and B
Rules of behavior and record retention
Attachments set record retention rules and rules of behavior and conduct for safeguarding client PII.
Retention periods by record type
Conduct rules staff agreed to
IRS Pub 5708 Sample Attachment C; 16 CFR 314.4(j)
Security breach procedures and notifications
Written steps for responding to a breach, including reporting data loss to the IRS and states and notifying the FTC when 500 or more people are affected.
Contacts for IRS, state and FTC reports
Owner for each response step
IRS Pub 5708 Sample Attachments E and F
Authorized users and hardware inventory
Lists of hardware holding PII and of staff authorized to access PII, with their access levels.
Current authorized users and access levels
Devices holding PII and locations
Citations are to the standard or regulation; wording is ours.
What gets asked for on the day
What reviewers sample about these documents and the people they cover.
PTIN renewal question
Form W-12 line 11 asks each preparer to confirm awareness of the legal duty to create and maintain a WISP; a box must be checked to complete the form.
The plan itself
In an FTC inquiry, expect a request for the written plan, its last review date and the named Qualified Individual.
Staff acknowledgment
IRS guidance treats signed, dated employee acknowledgments kept on file as the documentation trail for training and policy understanding.
Data loss response
After a data theft, IRS guidance has preparers report the loss to the IRS and states; the plan's breach procedures show who does what.
The policy and acknowledgment layer for IRS WISP.
Write each policy, send it through approval, and send it to the people it covers. Each acknowledgment is recorded by name, with the version, the date and the time.
When a policy changes, the new version is approved, its Editor sends it out again, and everyone it applies to is asked again. Export the record as a PDF or CSV, or give a reviewer Viewer access to the documents their tags allow.
Approved before it goes outUp to four steps, with any or all approvers.
Acknowledged by nameName, email, date, time and version on every record.
Asked again on every changeEach new version goes out again to everyone it applies to.
The record on requestA PDF or CSV export, or Viewer access to the documents their tags allow.
Your region’s laws, the standards your customers ask for, and your own house rules. Write each one as a policy, approve it, and send it to the people it covers.
Publication 5708 states that tax and accounting professionals are financial institutions under the GLBA and Safeguards Rule regardless of size. It also notes a sole practitioner can use a shorter plan scaled to the practice.
What does the PTIN renewal ask?
Form W-12 (Rev. October 2025), line 11, asks the preparer to confirm awareness that paid preparers are required by law to create and maintain a WISP, and points to Publications 5708 and 4557. The online renewal carries the same question.
How often should the WISP be reviewed?
The IRS sample template carries a last modified or reviewed date and calls for review and update at least annually. The Safeguards Rule also expects the program to be adjusted after testing results or material changes.
What do practices with fewer than 5,000 clients skip?
Under 16 CFR 314.6, institutions holding information on fewer than 5,000 consumers are exempt from the written risk assessment, written incident response plan, annual board report and continuous monitoring or testing requirement. The written plan, Qualified Individual, safeguards and staff training still apply.
Do e-file providers have additional standards?
Publication 4557 notes that online providers must also follow the six security and privacy standards in Publication 1345 for authorized IRS e-file providers. Those sit alongside the WISP.