Form 15091, Benefit Assurance – Certification for Terminating Plans

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When a retirement plan terminates, the question that decides whether the file holds up is simple: were the participants actually paid out, and can you prove it. Form 15091, Benefit Assurance, is the certification a terminating plan files to confirm that liabilities to all participants have been satisfied through guaranteed annuity contracts or lump sum distributions.

It is a stand-alone certification, not a determination letter application, and it is filed in addition to the plan's final Form 5500, not instead of it. The completed form goes to the IRS Tax Exempt and Government Entities division in Dallas, Texas, not a regional service center. When a termination file stalls, it is usually because the distribution records behind the certified dates and amounts cannot stand on their own under review.

Key Takeaways

• Form 15091, Benefit Assurance, is the certification a terminating retirement plan files; an authorized representative signs it to confirm that liabilities to all participants have been satisfied through guaranteed annuity contracts or lump sum distributions (per IRS Form 15091, Rev. 1-2019).
• It is a stand-alone certification, not a determination letter application, and it is administered by IRS Tax Exempt and Government Entities, the division that handles retirement plans.
• Use it after a retirement plan terminates and every participant's benefit liability has been fully satisfied through guaranteed annuity contracts or lump sum distributions – not to report in-progress work.
• Mail the completed form to IRS - Tax Exempt and Government Entities, CPC:C&CA Referrals Group, Mail Stop 4910DAL, 1100 Commerce Street, Dallas, TX 75242-1027; there are no separate IRS instructions, since all guidance is on the form itself.
• Protect participant PII and keep the distribution records that support each certified date and amount, so the figures can be verified later. Accuracy here saves hours in downstream questions.

What Form 15091 Is, And What It Is Not

Form 15091, Benefit Assurance, is a single-page certification a terminating retirement plan files with the IRS Tax Exempt and Government Entities division (per IRS Form 15091, Rev. 1-2019). An authorized representative of the plan signs it to certify that liabilities to all plan participants have been satisfied through guaranteed annuity contracts or lump sum distributions.

• What it is
  • A certification that participant benefit liabilities have been satisfied through guaranteed annuity contracts or lump sum distributions.
  • A single-page form, signed by the plan's authorized representative and mailed to IRS Tax Exempt and Government Entities in Dallas.
  • A closing record that documents the dates and amounts behind the plan's final payouts.
• What it is not
  • It is not a determination letter application, and filing it does not replace any required final Form 5500 series return the plan may also need to file.
  • It is not a benefits enrollment, group insurance, or employer benefits form despite the "Benefit Assurance" title – it is administered by IRS Tax Exempt and Government Entities and applies only at the close of a retirement plan termination.
  • It is not filed before satisfaction is complete; the certification attests that liabilities to all participants have already been satisfied.

Why that matters, anyone reviewing the termination file later needs to confirm each certified date and amount against the plan's distribution records without digging through fragmented emails. When the supporting evidence is clean, the certification stands on its own.

When To Use Form 15091

Use Form 15091 at the close of a retirement plan termination, once every participant's benefit liability has been satisfied through guaranteed annuity contracts or lump sum distributions (per IRS Form 15091, Rev. 1-2019). Common moments:

• You are wrapping up a defined contribution plan termination and need to certify that all participants received their final lump sum distributions on the dates and amounts recorded in the plan's distribution ledger.
• You are closing a defined benefit plan termination where the plan satisfied participant liabilities by purchasing guaranteed annuity contracts, and you need to record the purchase dates and dollar amounts on the certification.
• You have excess plan assets to account for, and you need to record the date(s) and amount received on the certification alongside the annuity and lump sum entries.

Practical guardrails that keep the certification accurate:

• Tie each date and amount on the form to the plan's distribution ledger before you sign.
• Apply appropriate privacy handling to the participant census and distribution schedules you keep on file.
• Capture the signer's name, title, and date so the certification's authority is unambiguous.
• Keep proof of every annuity purchase and lump sum distribution with the termination file.

Who Prepares And Approves It

Form 15091 is prepared by the terminating retirement plan and signed by an authorized representative of the plan (per IRS Form 15091, Rev. 1-2019; the certification block lists signature, title, and date). The signer attests that the plan's liabilities to all participants have been satisfied through guaranteed annuity contracts or lump sum distributions. The completed certification is mailed to the IRS Tax Exempt and Government Entities division at the Dallas address printed on the form; it is not handled internally by IRS EP staff.

Roles, In Brief

• Plan administrator or sponsor, gathers the termination facts: the date of termination and the dates and amounts of annuity contracts purchased and lump sum distributions paid.
• Authorized representative of the plan, reviews those facts against the distribution records, then signs the certification block with name, title, and date.
• Recordkeeper or advisor, keeps the supporting distribution ledger and proof of payouts so each certified amount can be verified.

The Fields On Form 15091

Form 15091 is a single page, and its header collects the plan sponsor's identifiers while the body records how participant liabilities were satisfied (per IRS Form 15091, Rev. 1-2019). Fill each field exactly so the certification matches the plan's records.

• Header, the preparation date, the plan sponsor's Employer Identification Number (EIN), the DLN if the IRS has assigned one, the sponsor's address, and the person to contact with a contact telephone number.
• Plan data, the plan name, the three‑digit plan number, and the date of termination.
• Satisfaction of liabilities, the date(s) and amount of excess assets received, the date(s) and amount of guaranteed annuity contracts purchased, and the date(s) and amount of lump sum distributions paid.
• Certification, the signature, title, and date in the block at the bottom of the form, where the signer attests that liabilities to all participants have been satisfied (per IRS Form 15091, Rev. 1-2019).

Building A Review‑Ready Packet

Think like someone auditing the termination a year from now. They want to confirm each certified date and amount against the records, then move. Use this checklist:

• Keep the signed Form 15091 with a copy of the plan's distribution ledger.
• Tie each certified date and amount to a supporting record, labeled and dated.
• List the plan identifiers in one place, the sponsor EIN, plan name, and three‑digit plan number.
• Confirm the signer's name, title, and date are on the certification block.
• Keep proof of annuity purchases and lump sum distributions with the file.
• Store everything under your firm's naming and version controls so updates do not overwrite signed history.

Documentation Hygiene That Saves Hours

• Use consistent file names, start with date, sponsor name, plan number, and a short description.
• Keep a one‑page index at the top of the file.
• Redact PII that is not needed for verification, then log what you redacted and why.

Good files are quiet. Anyone verifying the certification can read them at speed without asking where the numbers came from.

Common Pitfalls We Still See

• Signing before satisfaction is complete, which makes the certification false.
• Mismatched identifiers, the EIN or plan number on the form does not match the plan's records.
• Mailing the form to a service center instead of the TE/GE address in Dallas printed on the form.
• Certified amounts that do not reconcile to the distribution ledger.
• Signatures without titles or dates, which weakens the authority of the certification.

Where Form 15091 Fits In Plan Termination Work

Form 15091 applies at the close of a retirement plan termination, once participant benefit liabilities have been satisfied through guaranteed annuity contracts or lump sum distributions (per IRS Form 15091, Rev. 1-2019). The plan's authorized representative signs the certification and mails it to IRS Tax Exempt and Government Entities in Dallas, in addition to any required final Form 5500 the plan must file.

Typical Termination Artifacts To Align

• Plan document and all interim and discretionary amendments through the termination date.
• Trust or custodial agreement.
• Form 5500 series filings, recent years.
• For defined benefit plans, actuarial reports and funding notices.
• Participant census and distribution schedules with appropriate privacy handling.
• Proof of annuity contract purchases and lump sum distributions that support the certified dates and amounts.

Keeping these records with the signed Form 15091 lets anyone reviewing the termination later confirm each certified date and amount without guessing where the numbers came from.

Privacy, Disclosure, And Custody That Stand Up Later

When you handle the participant census and distribution schedules behind a Form 15091, treat them like someone will audit them a year from now. Identify the records precisely, note the format, and record who is allowed to receive them. Participant data deserves tight handling, so make privacy decisions obvious, not implied.

If a detail is sensitive, say so. If a recipient is not authorized, do not list them. If you redact, record the reason.

Chain‑Of‑Custody Basics

• Define the records and date ranges.
• Name the sender, recipient, and delivery method.
• Record send and return dates.
• Store the receipts and tracking confirmations with the packet.

Where Form 15091 Falls In The Termination Timeline

Form 15091 comes at the end, not the beginning, of a plan termination. Sequence the work so the certification is the last step:

• Terminate the plan and set the date of termination.
• Satisfy every participant's benefit liability through guaranteed annuity contracts or lump sum distributions, recording each date and amount.
• Sign Form 15091 once satisfaction is complete, then mail it to IRS Tax Exempt and Government Entities in Dallas (per IRS Form 15091, Rev. 1-2019).
• File the plan's final Form 5500 series return separately, on its own deadline, since Form 15091 does not replace it.

When these steps line up, the certification is accurate and easy to verify. When they do not, the figures on the form will not reconcile to the records behind them.

Quality Signals Reviewers Notice

• Certified dates and amounts that reconcile to the distribution ledger.
• Supporting records that match the figures on the form.
• A certification block with the signer's name, title, and date.
• Identifiers on the form that match the plan's official records.
• Participant data handled with explicit, correct privacy controls.

These signals are small, but together they show that the certification can be trusted and verified later without drama.

The Records Behind A Signed Form 15091

Whoever reviews the termination later should be able to see the full picture in minutes, not hours. The plan's authorized representative signs Form 15091 to certify that all participant liabilities have been satisfied through guaranteed annuity contracts or lump sum distributions (per IRS Form 15091, Rev. 1-2019), and the supporting records should make every dollar amount and date on the certification easy to verify against the plan's distribution ledger.

Sponsor And Plan Identifier Checklist

Get the basics perfect. These are the identifiers that go on the form and tie it to the plan's records.

• Legal sponsor name, exactly as it appears on IRS records
• EIN, double check against recent correspondence
• Plan name and three‑digit plan number
• Plan type, for example 401(k), profit sharing, money purchase, defined benefit
• Date of termination
• DLN, only if the IRS has assigned one to this case
• Person to contact and a contact telephone number

If any one of these entries is wrong, the certification will not reconcile to the plan's records.

Supporting Documents To Keep With The Certification

Keep the records that prove how participant liabilities were satisfied. Organize them in the order they support the figures on the form.

• Plan document and every interim and discretionary amendment through the termination date
• Adoption agreement, trust or custodial agreement
• Most recent Form 5500 filings and schedules
• Defined benefit plans, actuarial reports, AFTAP calculations, and funding notices
• Participant census and distribution schedules, with privacy controls applied
• Proof of lump sum distributions and annuity contract purchases, with dates and amounts
• Records of any excess assets received, with dates and amounts

Record-Keeping Standards That Hold Up Later

Keep your supporting records boring and predictable, so they are fast to verify.

• Naming, use date, sponsor, plan number, and a short description, for example 2025‑03‑04_ABC‑Inc_PN001_5500‑2023.pdf
• Index, one page up front that lists each record, date, and a short description
• Cross-reference, point each certified figure on the form to the record that supports it
• Privacy, redact SSNs and sensitive data that are not needed for verification
• File type, PDFs that render clearly, scanned at a readable size, avoid photos of documents
• Version control, lock the signed certification, save updates as new versions with a date suffix

Step‑By‑Step: Completing And Filing Form 15091

Here is a simple process you can reuse once a retirement plan has terminated and every participant's benefit liability has been satisfied (per IRS Form 15091, Rev. 1-2019).

• Confirm the certification can be made truthfully. Verify from the plan's distribution ledger that all participant liabilities have actually been satisfied through guaranteed annuity contracts or lump sum distributions before anyone signs.
• Complete the header. Enter the date, the plan sponsor's EIN and address, the DLN if assigned, and the person to contact with a telephone number.
• Complete the plan and satisfaction fields. Enter the plan name, plan number, date of termination, and the date(s) and amount of excess assets received, annuity contracts purchased, and lump sum distributions paid.
• Have an authorized representative sign. The signer enters signature, title, and date in the certification block, attesting that liabilities to all participants have been satisfied.
• Mail it to the address on the form. Send the completed certification to IRS - Tax Exempt and Government Entities, CPC:C&CA Referrals Group, Mail Stop 4910DAL, 1100 Commerce Street, Dallas, TX 75242-1027.
• Keep a copy with the plan's termination file alongside the distribution records that support each amount.

Electronic Routing, PII, And Security Basics

Anything with participant data deserves careful handling. Treat privacy as part of delivery, not an afterthought.

• Use secure portals or encrypted email when sending files that include PII.
• Share only what the recipient needs to do their job, nothing more.
• Record who receives each file and when, then log the return date.
• Store receipts and tracking confirmations with your packet.
• Keep signed documents in read‑only format, then save updates as new versions so the signature history is preserved.

If your team works in multiple systems, decide once how you will name files and track versions. Write it down as an SOP. This small step prevents accidental overwrites and lost history during busy season.

A Minimal SOP You Can Adopt Today

• File structure, one folder per case, subfolders for Memo, Exhibits, Receipts
• Naming, date_prefix, sponsor, plan number, short description
• Versioning, v1, v2, v3 suffixes for drafts, no overwriting signed items
• Audit log, a simple spreadsheet with send dates, recipients, and return confirmations

How Form 15091 Fits Alongside Other Termination Filings

Form 15091 is a stand-alone certification, not a determination letter application (per IRS Form 15091, Rev. 1-2019). Filing it does not replace any other filing the terminating plan may owe, so keep these distinct in the file.

• Form 15091, Benefit Assurance, certifies that participant liabilities have been satisfied through guaranteed annuity contracts or lump sum distributions. The plan's authorized representative signs it and mails it to IRS Tax Exempt and Government Entities in Dallas.
• The plan's final Form 5500 series return is filed separately according to its own deadline; Form 15091 does not stand in for it.
• If a defined benefit plan involved excess assets, the date(s) and amount are recorded on Form 15091 itself, drawn from the plan's own records.

Timing Tips

• Sign and file Form 15091 only after every participant's benefit liability has actually been satisfied; signing earlier is a false certification.
• Confirm the date of termination and each satisfaction date against the plan documents and distribution ledger before mailing.
• Keep proof of annuity purchases and lump sum distributions in the termination file so the certified amounts can be verified later.

Common Mistakes That Create Drag

These three checklists are written to drop straight into a firm SOP without rewriting. Each step references a real piece of the Form 15091 workflow, not generic project management language.

Where Accountably Fits, Without Getting In Your Way

If your internal team is slammed, documentation quality is usually the first thing to slip. That is risky for plan-termination work, since a certification that does not reconcile to the records is hard to defend later. Accountably's value is discipline. We build SOPs, organize workpapers, and maintain version control so your termination files hold up. Our teams work directly inside your systems and templates, which keeps continuity across busy seasons. We will not flood a file with resumes or generic checklists, we will give you clean records that make the certification simple to sign and verify.

A Short Case Story You Can Steal

A midsize plan sponsor was closing out a plan termination after a merger. The first file held the plan, a handful of amendments, and an unlabeled spreadsheet of distributions, so no one could quickly confirm that every participant had been paid. The fix was simple. We rebuilt the file with a clean participant distribution schedule, dates and amounts that tied to the ledger, and proof of each annuity purchase and lump sum payment. With that in hand, the authorized representative could sign Form 15091 confident that every certified figure could be backed up. Nothing fancy, just quiet organization.

Confidence comes when the certification, the distribution ledger, and the supporting records all tell the same story.

Final Checklist

• Every participant's benefit liability has actually been satisfied before anyone signs
• Sponsor name, EIN, plan name, and plan number match across the form and the records
• Each certified date and amount reconciles to the distribution ledger
• Proof of annuity purchases and lump sum distributions is on file
• Participant data is handled with appropriate privacy controls
• The certification block has the signer's name, title, and date
• The completed form is mailed to the TE/GE address in Dallas printed on the form

Conclusion, Keep The Certification Verifiable

You do not need more emails or bigger binders to close a plan termination cleanly. You need a file where the certified figures stand on their own, with each date and amount backed by a record. Form 15091 is a single page, but the quality of the records behind it determines how easily anyone can verify it later.

If you want help turning this into muscle memory, our team at Accountably builds the discipline for you, clean SOPs, structured workpapers, and continuity season after season. You keep control, and your termination files hold up.

Ready to tighten your plan-termination work, start with one high‑stakes case, we will set up the structure, match your templates, and show you how a quiet, organized file makes the certification easy to sign and verify.

Reusable Checklists

Plan terminations rarely stall because the underlying facts are messy. They stall because the records behind the certification cannot stand on their own when someone has to verify them later. The form itself is a single page (per IRS Form 15091, Rev. 1-2019), and the only filing instruction printed on it is to return the completed form to the Technical or Review Staff at the IRS Tax Exempt and Government Entities address in Dallas. Everything else, including identifier reconciliation and the audit trail back to the distribution ledger, lives in the records you keep around that one page.

The fix is to treat the certification and its supporting records as one verifiable set, not a string of email threads. The discipline is mostly small habits, repeated every termination, that keep the certified figures reconcilable.

• Lock the date of termination, sponsor EIN, plan name, and three-digit plan number into one canonical record, then reuse it on the form and across the supporting records so the identifiers are a single consistent set.
• Track dates and dollar amounts for excess assets received, guaranteed annuity contracts purchased, and lump sum distributions paid in one ledger, then mirror that ledger into the matching Form 15091 amount fields and the final Form 5500 schedules.
• Leave the DLN field blank unless the IRS has already communicated a Document Locator Number for this case (per Form 15091, Rev. 1-2019); never enter the EIN, plan number, or an internal tracking ID in that slot.
• Mail the signed certification to IRS Tax Exempt and Government Entities, CPC:C&CA Referrals Group, Mail Stop 4910DAL, in Dallas, with proof of mailing logged in the termination file.
• Confirm the signature, title, and signature date are populated before the form leaves the office; the certification is effective only when signed by an authorized representative of the plan.

If the bottleneck on your termination work is internal documentation discipline rather than client cooperation, that is exactly where our tax execution services step in: structured workpapers, consistent naming conventions, and a review cadence that keeps Form 15091 records reconcilable.

Keep 15091 Work From Stalling

Plan termination work follows a different rhythm than seasonal filings. The Benefit Assurance certification (per IRS Form 15091, Rev. 1-2019) is what confirms every participant's benefit liability has actually been satisfied through guaranteed annuity contracts or lump sum distributions. The bottleneck on these files is rarely the form itself, since 15091 is a single page; it is the supporting records, which have to hold up when someone verifies the certification six or eight months after the termination date.

The fix is not faster typing. It is keeping the satisfaction evidence and identifier reconciliation tight enough that the certification can be signed and mailed in one pass, without follow-up that pulls senior reviewers off active engagements.

• Pin the two acceptable satisfaction methods early (guaranteed annuity contracts or lump sum distributions, per IRS Form 15091, Rev. 1-2019), then keep rollover, successor-plan transfer, and partial-distribution evidence in separate records, not on the certification.
• Build the dates and dollar amounts for excess assets received, annuity contracts purchased, and lump sum distributions paid into one master schedule, and reconcile that schedule against the plan's final Form 5500, since 15091 is filed in addition to, not instead of, the final 5500.
• Treat the DLN field as an explicit SOP line: if the IRS has not communicated a Document Locator Number for this case, the field stays blank, never the EIN, the three-digit plan number, or an internal tracking ID by reflex.
• Lock the mailing address on every signed certification to IRS Tax Exempt and Government Entities, CPC:C&CA Referrals Group, Mail Stop 4910DAL, 1100 Commerce Street, Dallas, TX 75242-1027, since 15091 does not go to a regional service center or to a local IRS office.
• Log every mailing in the termination file with date sent, signer name and title, and tracking confirmation, so the record is reconstructable a year out when a successor TPA or an auditor asks for it.

For termination caseloads that climb faster than internal SOP discipline can keep up, our engagement models map directly to this kind of low-volume, high-stakes work: structured workpapers, identifier reconciliation, and a review cadence that keeps the 15091 from ever being the reason a file sits.

FAQs

Do plan sponsors file Form 15091 themselves?

Yes. Form 15091, Benefit Assurance, is the certification a terminating retirement plan files; an authorized representative of the plan signs it to certify that liabilities to all plan participants have been satisfied through guaranteed annuity contracts or lump sum distributions (per IRS Form 15091, Rev. 1-2019). The signed form is mailed to the IRS Tax Exempt and Government Entities division in Dallas, in addition to the plan's final Form 5500.

When is Form 15091 filed in a plan termination?

Form 15091 is filed at the conclusion of a plan termination, once every participant's benefit liability has actually been satisfied through guaranteed annuity contracts or lump sum distributions (per IRS Form 15091, Rev. 1-2019). It is not used to track in-progress work; it is the final certification that satisfaction has occurred.

What identifiers must always match?

The sponsor legal name, EIN, plan name, and three-digit plan number on the form must match the plan's official records. If any of these disagree, the certification will not reconcile to the records behind it.

How is Form 15091 different from Form 5621?

Form 15091, Benefit Assurance, is the terminating plan's certification that participant liabilities have been satisfied through guaranteed annuity contracts or lump sum distributions (per IRS Form 15091, Rev. 1-2019). It is mailed to IRS Tax Exempt and Government Entities in Dallas and is separate from any internal IRS workpaper such as Form 5621.

Can I email participant data to the IRS?

Use the secure channel your IRS contact specifies. If you must transmit sensitive data, use encryption or a secure portal, share only what is needed, and record custody and return dates.

Should EPCRS materials be included in a termination packet?

Keep EPCRS materials with the termination file if corrections affect the termination facts or dates. Label them clearly so anyone verifying the certification can see how the correction ties to the certified dates and amounts.