What Is Form 8955-SSA? Filing Rules, Deadlines, and Penalties

Form 8955-SSA is the IRS registration statement that retirement plan administrators use to report separated participants who still have a vested benefit sitting in the plan. The IRS passes the data to the Social Security Administration, which uses it to notify former employees about those benefits when they later claim Social Security or Medicare. The form is required for most private-sector qualified plans, is filed separately from the Form 5500, and carries per-participant daily penalties when it’s late or incomplete.

Who Has To File

The plan administrator of any retirement plan subject to the vesting standards of ERISA Section 203 must file Form 8955-SSA for each plan year in which a participant separates from service and keeps a right to a deferred vested benefit.¹ That sweeps in most 401(k) plans, traditional pension plans, profit-sharing plans, and other qualified plans that file in the Form 5500 series.

A deferred vested benefit means the participant has earned a non-forfeitable benefit but isn’t yet receiving payments. If a departing employee took a full distribution or rolled the whole balance out, there’s nothing left to report for that person.

Plans That Are Exempt

Government plans, non-electing church plans, and plans covering only owners and their spouses (including solo 401(k) plans and partnership plans covering only partners and their spouses) sit outside ERISA’s vesting rules and are not required to file.² These administrators can file voluntarily if they want SSA to track their participants, but no penalty attaches if they don’t.

When It’s Due

Form 8955-SSA is due the last day of the seventh month after the plan year ends.³ For a calendar-year plan, that’s July 31. The deadline matches the Form 5500 due date, but the two forms travel separately. Don’t attach 8955-SSA to a 5500 and don’t send it through the Department of Labor’s filing system.²

You can extend the deadline by filing Form 5558 on or before the original due date. The extension runs to the 15th day of the third month after the normal due date, which is October 15 for a calendar-year plan.⁴ The extension is automatic as long as Form 5558 is timely and the date requested stays within that outer limit.

What Goes on the Form

The form has two layers: plan-level identifiers and a line for each separated participant.

Plan Information

At the top, the administrator enters the plan’s legal name, the sponsor’s name and address, the Employer Identification Number, and the three-digit plan number. These tie the filing to the plan’s existing IRS records.²

Participant Information

For each separated participant with a deferred vested benefit, the form requires the full name, Social Security number, and the nature, amount, and form of the benefit.¹ For a defined contribution plan, the amount is the account balance at plan year-end. For a defined benefit plan, it’s the benefit payable at normal retirement age.

Each line also needs a status code explaining why the participant appears:²

Code A for a newly separated participant being reported for the first time.
Code B to correct previously reported information for a participant.
Code C for a participant whose benefits were transferred in from another employer’s plan and previously reported under that plan.
Code D for a previously reported participant who has since been paid out or is no longer entitled to deferred vested benefits.

Code D is easy to overlook. When a participant takes a full distribution or forfeits eligibility, you report them one last time with Code D to clear them from SSA’s records. Skip that step and the stale data stays in the system.

How To Submit It

Filers required to submit at least 10 returns of any type to the IRS during the calendar year must file Form 8955-SSA electronically.⁵ That threshold catches most plan sponsors and third-party administrators. Electronic filing runs through the IRS FIRE (Filing Information Returns Electronically) system, often via approved benefits software.

If you qualify for an exception or receive a hardship waiver, paper forms go to the IRS Service Center in Ogden, Utah.² Keep your filing confirmation either way. If the IRS later says the form never arrived, that receipt is your defense.

One boundary worth noting: unlike the Form 5500, which the DOL makes publicly available, Form 8955-SSA is not open to public inspection.² It carries Social Security numbers and benefit amounts, and the IRS treats it as confidential tax information. That’s part of why the two forms can’t be filed together.

Statements to Participants

Filing with the IRS is only half the job. The plan administrator must also furnish an individual statement to each separated participant listed on the form, and the deadline for delivering those statements is the same as the filing deadline for Form 8955-SSA.¹ The statement tells the participant what was reported about their benefit and must include notice of any benefits that would be forfeited if the participant dies before a certain date. When filing the form, the administrator also has to provide the IRS with evidence that these statements were delivered.

What SSA Does With the Data

The IRS transmits all Form 8955-SSA data to the Social Security Administration, which stores it in an electronic pension benefit record.¹ When someone files a new claim for Social Security retirement benefits or Medicare, SSA checks whether that person appears in the pension record. If so, SSA sends the claimant a notice identifying the plan, the type and amount of the benefit, and the plan administrator’s contact information.⁶ That notice is the reason the form exists.

Penalties for Late or Incomplete Filing

The penalty structure is steeper than many administrators expect, especially after the SECURE Act’s 2020 increases.

Failure To File the Registration Statement

Under IRC Section 6652(d)(1), filing Form 8955-SSA late or without all required participants costs $10 per unreported participant, per day the failure continues, capped at $50,000 for any single plan year.⁷ A plan with 20 unreported participants accrues $200 a day and hits the cap in 250 days. A plan with hundreds of participants reaches it much faster.

Failure To Notify of a Change in Plan Status

A separate penalty under IRC Section 6652(d)(2) applies when the administrator fails to tell the IRS about changes such as a new plan name, a new administrator name or address, a plan termination, or a merger. That penalty is $10 per day with a $10,000 cap.⁷

Failure To Furnish Participant Statements

An administrator who willfully fails to deliver the required individual statement to a separated participant faces a $50 penalty per participant.⁸ The “willful” qualifier matters; an honest clerical error is treated differently than ignoring the requirement.

Reasonable Cause Relief

Both the registration penalty and the change-of-status penalty can be waived if the administrator shows the failure was due to reasonable cause.⁷ The statute doesn’t define the standard precisely, but reasonable cause generally means the administrator used ordinary business care and still couldn’t meet the deadline. The IRS looks at the facts of each case. If a penalty notice arrives (usually Notice CP283C), respond in writing with documentation of what happened and why it was outside your control.

Final Filing When a Plan Terminates

When a plan files its final Form 5500, the matching Form 8955-SSA for that year has to report all remaining participants with deferred vested benefits. It should also use Code D to clear out participants who were previously reported but have since been paid out.² This filing gets missed often during the rush of plan wind-down, and the per-participant daily penalties make the oversight expensive.

1
Office of the Law Revision Counsel. 26 USC 6057 – Annual Registration, Etc.
2
Internal Revenue Service. Instructions for Form 8955-SSA
3
Internal Revenue Service. FAQs Regarding Form 8955-SSA
4
Internal Revenue Service. Form 5558 – Application for Extension of Time To File Certain Employee Plan Returns
5
Internal Revenue Service. Mandatory Electronic Filing for Certain Form 8955-SSA and 5500-EZ Returns
6
Social Security Administration. 20 CFR 422.122 – Information on Deferred Vested Pension Benefits
7
Office of the Law Revision Counsel. 26 USC 6652 – Failure To File Certain Information Returns, Registration Statements, Etc.
8
Internal Revenue Service. Penalties Related to the Filing of Forms 8955-SSA