A vested pension is legally yours, but a company can reduce or eliminate it in specific circumstances

Once you are vested in a pension plan — meaning you have worked long enough to own the benefit — the company cannot straightforward take it away because you leave, get fired, or the company changes its mind. However, a company can reduce or stop your pension in a few narrow situations: if the pension plan itself is terminated and replaced with something else, if the company goes bankrupt and the Pension Benefit Guaranty Corporation (PBGC) takes over, or if you signed an agreement allowing the company to modify the plan.

The protection you have depends on whether your pension is a defined benefit plan (a monthly payment for life) or a defined contribution plan (like a 401(k)). The rules are different, and so are the limits on what a company can do.

Key Takeaways

  • A vested pension benefit cannot be forfeited straightforward because you leave the company or are terminated, but the company can modify the plan itself under certain legal conditions.
  • If a defined benefit pension plan is terminated, the PBGC guarantees a portion of your benefit up to a legal maximum, which may be less than what you were promised.
  • In a defined contribution plan like a 401(k), your vested balance belongs to you and cannot be reduced, but the company can stop making future contributions.
  • Bankruptcy can trigger plan termination, but the PBGC protection still applies to defined benefit pensions.
  • You have the right to receive a Summary Plan Description from your employer that explains what changes the company can legally make to your pension.

How vesting protects your pension from forfeiture

Vesting is the point at which a pension benefit becomes your property under federal law. Before you are vested, the company can take back any contributions it made on your behalf if you leave. Once you are vested, that money is yours — the company cannot forfeit it no matter what happens to your employment.

This protection is written into the Employee Retirement Income Security Act (ERISA), the federal law that governs most private pensions. ERISA says that once you are vested, your benefit is "nonforfeitable." That means the company cannot reduce it, delay it, or take it away because you quit, are fired, or the company decides it no longer wants to fund the plan.

However, nonforfeitable does not mean unchangeable. The company can change the plan itself — how much it will contribute going forward, when you can collect, or even whether the plan continues to exist. Those changes are legal under ERISA, but they explore to future benefits, not to the vested benefit you have already earned.

What happens when a defined benefit pension plan is terminated

A defined benefit plan is a traditional pension that promises you a specific monthly payment for life, usually based on your salary and years of service. If the company terminates this plan, your vested benefit does not disappear — but it may be reduced.

When a defined benefit plan ends, the PBGC, a federal insurance agency, steps in. The PBGC takes over the plan's assets and guarantees your vested pension up to a legal limit. That limit changes each year. In 2024, the maximum PBGC may provide for someone age 65 is $5,901.14 per month, but the amount varies by age and the year the plan ended. If your promised pension is higher than the PBGC maximum, you receive only what the PBGC covers.

The company must notify you in writing before terminating a plan. You have the right to object, and the plan administrator must explain how your benefit will be paid. If the plan has enough money to cover all vested benefits in full, you lose nothing. If it does not, the PBGC steps in and you receive its may provide amount.

Defined contribution plans and what the company can and cannot change

A defined contribution plan like a 401(k) or 403(b) works differently. Instead of promising a set monthly payment, the company contributes a percentage of your salary (or matches what you contribute), and that money sits in an account with your name on it. Once that money is vested, it is yours — the company cannot reduce your account balance or take the money back.

What the company can do is stop making contributions. It can end the plan entirely, freeze new contributions, or change how much it will match going forward. But it cannot touch the money that is already vested in your account. If you have $50,000 vested in your 401(k), that $50,000 stays yours even if the company stops the plan tomorrow.

The company can also change the investment options available in the plan, move your money to a different plan administrator, or impose new withdrawal restrictions — but again, the vested balance itself cannot be reduced or forfeited.

Plan amendments and what changes the company can legally make

Under ERISA, a company can amend its pension plan as long as the amendment does not reduce a benefit you have already vested. This means the company can change the plan going forward, but cannot take back what you have already earned.

Common amendments include raising the age at which you can collect, changing how the benefit is calculated for new hires, or eliminating the plan for future employees while keeping it for current ones. These changes are legal because they do not affect vested benefits — only future accrual.

However, some amendments do affect vested benefits. For example, a company can freeze a plan, meaning no one accrues new benefits, but existing vested benefits remain unchanged. A company can also reduce the rate at which future benefits accrue, but again, vested benefits are protected. The plan document must spell out what amendments are allowed, and you have the right to receive a copy of the Summary Plan Description that explains these rules.

Bankruptcy and the PBGC safety net

If your company files for bankruptcy, a defined benefit pension plan may be terminated. This is one of the few situations where a vested pension can be reduced. However, the PBGC still guarantees your benefit up to its annual maximum.

In bankruptcy, the company's assets are divided among creditors, and the pension plan is treated as a claim. If the plan does not have enough money to cover all vested benefits, the PBGC takes over and pays what it guarantees. You will not lose your entire pension, but you may receive less than promised if the plan was underfunded.

The PBGC maintains a searchable database of terminated plans. If you are unsure whether your plan was terminated or taken over by the PBGC, you can search for your company and plan name on the PBGC website.

Your rights to information about plan changes

Federal law requires your employer to give you written notice of any plan amendment that affects your benefits. You must receive this notice at least 30 days before the change takes effect. You also have the right to request and receive a copy of the plan document itself, not just a summary.

If you believe your vested benefit has been improperly reduced or forfeited, you can file a complaint with the Department of Labor's Employee Benefits Security Administration (EBSA). You can also sue the plan administrator under ERISA to recover benefits you believe you are owed.

Many people do not realize they have these rights. If your employer tells you that your vested pension is being reduced or taken away, ask for the plan amendment in writing and review it carefully. If you are unsure whether the change is legal, contact the EBSA or consult an attorney who specializes in pension law.

Frequently Asked Questions

Can my company reduce my pension if I leave before retirement?

No. Once you are vested, your benefit is locked in. If you leave the company, your vested pension stays with you. The company cannot reduce it because you quit or are fired. You can leave the money in the plan, roll it to an IRA, or take a lump sum if the plan offers one — but the amount you have vested cannot be reduced.

What if my company says it is freezing the pension plan?

A freeze means no one will accrue new benefits going forward, but your vested benefit is not affected. If you were vested before the freeze, you keep what you earned. If you were not yet vested, you stop accruing toward vesting. A freeze is legal and does not violate your rights to a vested pension.

Can the company change when I can collect my pension?

The company can change the normal retirement age for future benefits, but not for benefits you have already vested. For example, if you vested at age 55 with the right to collect at 62, the company cannot later say you must wait until 65. However, the company can change the rules for employees who have not yet vested.

What does the PBGC actually may provide?

The PBGC guarantees your vested defined benefit pension up to a legal maximum if the plan is terminated and does not have enough money to pay all benefits. The maximum varies by age and the year the plan ended. In 2024, it is $5,901.14 per month for someone age 65. If your pension is higher, you receive only what the PBGC covers.

Where can I learn about my pension plan was terminated?

You can search the PBGC's database at pbgc.gov using your company name and plan name. You can also contact your plan administrator or the Department of Labor's EBSA. If your plan was terminated, the PBGC or plan administrator will have sent you a notice explaining what happened and what you will receive.