Retirement Benefits During a Plan Termination or Company Merger

Adapted from What You Should Know About Your Retirement Plan, published by the U.S. Department of Labor; selected section: Chapter 8: Your Benefit During a Plan Termination or Company Merger. The source text is reproduced with headings and formatting adjusted for this guide.

Chapter 8: Your Benefit During a Plan Termination or Company Merger

As noted at the beginning of this booklet, employers are not required to offer a retirement plan, and they can modify and/or terminate plans.

What happens when a plan is terminated?

Federal law provides some measures to protect employees who participated in plans that are terminated, both defined benefit and defined contribution. When a plan is terminated, the current employees must become 100 percent vested in their accrued benefits. This means you have a right to all the benefits that you have earned at the time of plan termination, even benefits in which you were not vested and would have lost if you had left the employer. If there is a partial termination of a plan (for example, if your employer closes a particular plant or division that results in the end of employment of a substantial percentage of plan participants), the affected employees must be immediately 100 percent vested to the extent the plan is funded.

What if your terminated defined benefit plan does not have enough money to pay the benefits?

The Federal Government, through the Pension Benefit Guaranty Corporation (PBGC), insures most private defined benefit plans. For terminated defined benefit plans that do not have enough money to pay all of the benefits, the PBGC will guarantee the payment of your vested pension benefits up to the limits set by law. For further information on plan termination guarantees, contact the Pension Benefit Guaranty Corporation toll free at 1-800-400-7242, or visit the PBGC website.

What happens if a defined contribution plan is terminated?

The PBGC does not guarantee benefits for defined contribution plans. If you are in a defined contribution plan that is in the process of terminating, the plan fiduciaries and trustees should maintain the plan until they terminate it and pay out the assets.

Is your accrued benefit protected if your plan merges with another plan?

Your plan rules and investment choices likely will change if your company merges with another. Your employer may choose to merge your plan with another plan. If your plan is terminated because of the merger, the benefits that you have accrued cannot be reduced. You must receive a benefit that is at least equal to what you were entitled to before the merger. In a defined contribution plan, the value of your account may still fluctuate after the merger based on investment performance.

Special rules apply to mergers of multiemployer defined benefit plans, which generally are under the jurisdiction of the PBGC. Contact the PBGC for further information.

What if your employer goes bankrupt?

Generally, your retirement assets should not be at risk if your employer declares bankruptcy. Federal law requires that retirement plans fund promised benefits adequately and keep plan assets separate from the employer's business assets. The funds must be held in trust or invested in an insurance contract. The employers' creditors cannot make a claim on retirement plan funds. However, you should confirm that any contributions your employer deducts from your paycheck are forwarded to the plan's trust or insurance contract in a timely manner.

Significant business events such as bankruptcies, mergers, and acquisitions can result in employers abandoning their individual account plans (e.g., 401(k) plans), leaving no plan fiduciary to manage it. In this situation, participants often have difficulty in accessing their earned benefits and have no one to contact with questions. Custodians such as banks, insurers, and mutual fund companies are left holding the assets of these plans but do not have the authority to terminate the plans and distribute the assets. In response, the Department of Labor issued rules to create a voluntary process for the custodian to wind up the plan's business so that benefit distributions can be made and the plan terminated. Information about this program can be found on the Department of Labor's website.

Action Items

• If your former employer has gone out of business, arrangements should have been made so a plan official remains responsible for the payment of benefits and other plan business. If you are entitled to benefits and are unable to contact the plan administrator, contact EBSA electronically or by calling toll free 1-866-444-3272.
• Keep a file with information on your plan and company. If the company no longer exists under its former name, you might find some information on the Internet by entering the former name in a search engine. If your plan is abandoned, use the search function on the EBSA website to find out if the plan's custodian is terminating the plan and the custodian's contact information.
• If your plan merges, make sure you read the communications about changes in your plan, including changes in benefits and investment choices.
• If your retirement benefit remains with a former employer, keep current on any changes your former employer makes, including changes of address, mergers, or employer name.
• If you move, give the plan your new contact information.

This guide concerns U.S. workplace benefits and the federal rules described by the Department of Labor. The type of plan, its governing documents, and the facts of a claim matter. Government, church, and other excluded plans may follow different rules.

Source and scope

What You Should Know About Your Retirement Plan — U.S. Department of Labor. Accessed October 28, 2026. This public domain federal guidance is an educational reference; use the source publication and the applicable plan or employment documents for the full context and later updates. Fynoptic is independent and is not endorsed by the Department of Labor.