IRS Rules on Tax Treatment of Surplus Assets Transfer from Terminated Defined Benefit Plan to Defined Contribution Plan

IRS Greenlights Tax-Free Transfer of Pension Surplus to 401(k) Plan

The IRS has approved a tax-free transfer of surplus pension assets to a defined contribution plan, ruling that at least 25% of the surplus could be moved to a 401(k) without triggering income inclusion, deduction disallowance, or the 50% excise tax under Section 4980 of the Internal Revenue Code. In a private letter ruling (PLR-120095-25), the IRS confirmed that the taxpayer’s proposed transfer of surplus assets from a terminated defined benefit plan to a qualified replacement plan met the statutory requirements for tax-deferred treatment. The ruling marks a significant development for employers seeking to wind down underfunded or overfunded pension plans while preserving tax advantages for employees.

The Taxpayer's Challenge: Navigating Pension Termination with a Surplus

The taxpayer, part of a controlled group under Code section 414, faced a pension restructuring as it wound down operations. The group included Taxpayer, Company A, and Company B, all 100% owned by a foreign parent and treated as a single employer for retirement plan purposes.

As part of the wind-down, Taxpayer terminated its defined benefit pension plan (Plan A) and two defined contribution plans (Plan C and Plan D) on specified dates. Plan A had covered eligible employees across the controlled group, including both bargaining and non-bargaining unit employees. After Plan A’s termination, remaining employees were transferred to other entities within the group, with their retirement plan participation shifting to Plan B, a defined contribution plan sponsored by Company B.

Plan A had accumulated a surplus after satisfying all liabilities. The taxpayer proposed transferring at least 25% of this surplus to Plan B before any reversion to the employer, ensuring the funds remained in a qualified retirement plan. Correct structuring was critical to avoid a 50% excise tax under Section 4980 on the reverted surplus.

The IRS’s Rulings: Confirming Compliance with Section 4980

The taxpayer sought three rulings to ensure the surplus transfer from Plan A to Plan B would avoid the 50% excise tax under Section 4980 while preserving tax-deferred treatment for employees.

1. Plan B as a Qualified Replacement Plan (QRP): The IRS confirmed that Plan B—a profit-sharing 401(k) plan—met the QRP requirements under Section 4980(d)(2), including covering at least 95% of Plan A’s participants and being structured to receive transferred assets.

2. Tax Treatment of the Transfer: The IRS ruled that the direct transfer of at least 25% of the surplus from Plan A to Plan B would not result in gross income inclusion, deduction disallowance, or excise tax liability. The transfer was not treated as an "employer reversion" under Section 4980, avoiding the 50% excise tax.

3. Suspense Account and Allocation Rules: The IRS approved the taxpayer’s suspense account structure and seven-year ratable allocation method, finding it nondiscriminatory, proportional to accrued benefits, and compliant with Section 4980(d)(2)(C).

How the IRS Applied Section 4980: Key Requirements for Tax-Free Surplus Transfers

The IRS’s approval of the taxpayer’s plan hinged on strict compliance with Section 4980, which governs excise taxes on employer reversions from terminated qualified plans. The taxpayer avoided the default 50% excise tax by meeting the requirements for a qualified replacement plan (QRP) under Section 4980(d)(2).

The QRP framework requires three core elements:

1. Participation: At least 95% of active participants in the terminated plan must enroll in the replacement plan. The taxpayer satisfied this by transferring all remaining employees to Plan B, Plan C, or Plan D before terminating Plan A.
2. Asset Transfer: The employer must transfer at least 25% of the surplus directly to the QRP before any reversion occurs. The taxpayer met this threshold by transferring the required amount to Plan B.
3. Allocation: Transferred assets must be allocated to participants’ accounts either immediately or over a seven-year period via a suspense account, with income allocated ratably. The taxpayer’s allocation method complied with this requirement.

The IRS’s ruling confirms that these requirements are non-negotiable—partial compliance or missteps in documentation could result in disqualification and trigger the 50% excise tax.

Why the IRS Approved the Transfer: Compliance in Action

The IRS’s approval of the taxpayer’s surplus transfer hinged on three critical compliance points:

1. Participation Threshold Met: The taxpayer transferred 100% of Plan A’s active participants to Plan B, Plan C, or Plan D before terminating Plan A. This satisfied the 95% participation requirement under Section 4980(d)(2)(A), ensuring no active employees were excluded from the replacement plans.

2. Asset Transfer Requirement Satisfied: The taxpayer transferred at least 25% of Plan A’s surplus to Plan B, meeting the statutory minimum under Section 4980(d)(2)(B). This transfer was structured as a direct rollover to avoid income inclusion, deduction disallowance, or excise tax liability.

3. Allocation Rules Aligned with Statute: Plan B’s suspense account and seven-year ratable allocation method complied with Section 4980(d)(2)(C). The IRS verified that the allocation was nondiscriminatory, proportional to accrued benefits, and completed within the required timeframe.

The taxpayer’s meticulous documentation and adherence to these requirements enabled the IRS to approve the transfer without triggering the 50% excise tax.

Key Takeaways for Employers: What This Ruling Means in Practice

This Private Letter Ruling (PLR-120095-25) provides guidance for employers terminating defined benefit pension plans with surpluses, but it is not binding precedent. The IRS may revoke or modify the ruling retroactively if facts change or misstatements are discovered.

For employers considering similar transactions, three compliance thresholds are critical:

• 95% Participation Requirement: At least 95% of active participants in the terminated plan must enroll in the replacement plan. Employers in controlled groups must ensure coverage across all entities.
• 25% Surplus Allocation: The employer must transfer at least 25% of the surplus to the QRP before any reversion occurs to avoid the 50% excise tax.
• Ratable Allocation: Transferred assets must be allocated to participants’ accounts either immediately or over a seven-year period via a suspense account, with income allocated ratably.

The ruling underscores the need for precise documentation and actuarial support. Employers should consult advisors to structure transfers and allocation rules to withstand IRS scrutiny. While the path is narrow, the IRS’s approval signals potential opportunities for well-structured transactions.