What Is a Pension Plan & How Does It Work?
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While pension plans are less common today than they once were, many workers still receive a pension — a type of retirement plan that provides guaranteed income throughout retirement (or a lump sum at retirement).
Pension plans are known as defined-benefit plans because the benefits the worker will receive during retirement are predictable (i.e., defined). A 401(k) plan, on the other hand, is called a defined-contribution plan — because workers typically contribute a defined amount each month.
Pensions are employer-provided benefits; an individual can’t set up a pension as they would an IRA account. Read on to learn more about what a pension is and how it works.
Key Points
• A pension is a defined-benefit plan that gives employees a regular paycheck throughout retirement, or in some cases a lump sum upon retirement (i.e. the payment is defined).
• Defined contribution plans, like 401(k)s, rely on worker contributions but don’t provide a guaranteed payout like defined benefit plans.
• A pension is an employer-provided plan; workers cannot set up a pension plan.
• Pension plans are less common today; about 18% of U.S. private sector and government workers participated in a pension in 2025.
• While workers can choose their investments in a defined contribution plan like a 401(k) or 403(b), workers in pension plans cannot.
How to Get a Pension Plan
Unlike other types of retirement plans, such as individual retirement accounts (IRAs), an investor who wants to save for retirement can’t simply fund a pension on their own. Like 401(k) plans, pension plans must be offered by an employer.
While pension plans were once a mainstay of how companies took care of their workers, they’ve become increasingly less common in recent decades. Only a small percentage of private sector and government employers — about 18% — offered some form of pension to their employees as of 2025.
The main reason many companies no longer offer pensions is that it’s generally cheaper for them to offer defined-contribution plans, such as 401(k) or 403(b) plans. That said, if an individual works for the federal, state, or local government, they may be offered a pension.
Among state and local government workers who participate in a retirement savings plan, a majority are in a pension plan.
Recommended: A 4-Step Guide to Planning Retirement
Pension Plans vs. Other Retirement Accounts
The key difference between pension plans and other retirement plans comes down to the difference between a “defined benefit” plan and a “defined contribution” plan.
• With a defined benefit plan, such as a pension, the amount workers will receive in retirement is typically predictable: for example, $2,000 per month, which is valuable when you’re living in retirement.
• With a defined contribution plan, such as a 401(k) or similar, employees’ contributions, or savings, are defined: for example, $500 per month. However, a defined contribution plan doesn’t guarantee a fixed benefit amount once the employee retires.
401(k) vs. Pension Plan
Although 401(k) plans and pension plans are both types of tax-deferred accounts that aim to provide workers with income in retirement, they differ in a few ways.
• Funding and contribution limits
While the employer generally provides the bulk of funding for a pension plan, 401(k) plans are primarily funded by the employee. In some cases, an employer has the option to contribute to the 401(k) through matching funds. (Employers are not, however, required to provide an employer match.)
Another key difference is the annual contribution limit for each type of account.
For tax year 2026, employee contributions to a 401(k) plan are capped at $24,500 per year, with a total limit of $72,000, including employer contributions. (Those 50 and older may contribute additional catch-up contributions.)
The maximum total annual contribution to a pension plan for 2026 is $290,000.
• Roth designation
There are other points of distinction between pension plans and 401(k) plans. For example, a 401(k) plan may offer a Roth feature (i.e., a Roth 401(k) account), which allows workers to contribute after-tax funds, and take qualified tax-free withdrawals in retirement. Pensions generally do not offer a Roth option.
• Income and Taxes
As noted, the income from a pension plan is guaranteed, and thus a defined benefit.
But the income from a 401(k), 403(b), or other defined contribution plan depends on the amount the employee has saved over time, and the investments they selected for their portfolio, and how those investments performed.
The income from both a pension and a regular 401(k) is considered taxable income, however.
Pension Plan vs. IRAs
Individuals can also contribute to tax-advantaged IRAs and Roth IRAs. These are also quite different from pension plans.
Traditional and Roth IRAs are individual retirement savings accounts that individuals can set up. (Small businesses may offer a SEP IRA or SIMPLE IRA to employees.)
• Funding and contribution limits
The annual contribution limits for traditional and Roth IRAs for tax year 2026 is $7,500 per individual, with an extra $1,100 catch-up contribution for those 50 and older.
Since traditional IRAs and Roth IRA plans are self-funded, there is no employer match. Small-business IRAs, like SEP and SIMPLE accounts, may offer an employer match.
• Roth accounts
The Roth designation refers to the use of after-tax money to fund a retirement account, such as with a Roth IRA. Roth IRA account holders contribute after-tax funds, and qualified withdrawals are tax-free in retirement.
However, pension plans are tax-deferred accounts; the employee pays tax on their pension income in retirement. Typically, defined-benefit plans don’t offer a Roth option.
• Income
IRA investors can choose the investments in their portfolio. As a result, the ultimate payout from these plans typically depends on the amount saved and the performance, or returns of the investments in the plan.
Traditional IRAs are tax-deferred accounts, so qualified withdrawals are subject to ordinary income tax. And traditional IRA holders must take RMDs, starting at age 73. Roth IRAs are not subject to RMD rules.
One advantage that pensions have over defined contribution plans is that pensions are guaranteed by the federal government through the Pension Benefit Guaranty Corporation (PBGC). It effectively guarantees the benefits of pension-plan participants. But the PBGC does not cover people with defined contribution plans or IRAs.
Managing Your Pension Plan
Workers with pension plans should talk to a representative in their human resources department and find out what the plan offers. Every pension plan is unique. An employee may benefit from looking into the specifics such as:
• The pension benefit amount
• Whether it includes health and medical benefits
• What kind of benefits the pension will offer a surviving spouse or family members.
Someone just starting in their career may also want to ask when their pension benefits vest. In some plans, the benefits may vest immediately, while many others vest in stages, over the course of as seven or more years, which could affect their plans to move on to a new job or company.
One way to help get a better handle on what a pension may pay over time is to inquire about the pension benefit formula. Utilizing that formula is typically how an employer tallies up its eventual contribution to a pension plan based on years of service and what’s known as final average salary, which is the employee compensation rate the pension is based on.
Most often, the formula will use a percentage of the worker’s final average salary, and multiply it by their years of service to determine how much the employee will receive.
Pros of a Pension Plan
Perhaps the biggest advantage of a defined-benefit plan is the guarantee of predictable income in retirement. That’s the core promise that the PBGC protects.
Many pension plans may also include related medical and other benefits for the employee, as well as related benefits for surviving spouses. However those benefits vary widely from plan to plan and are important to investigate.
With a defined-benefit plan, an employee may be able to generally predict the amount they’ll have to live on after they retire, which could help them decide when they can retire. This might help workers plan for other needs, such as supplemental medical insurance or long-term care insurance, in order to better protect themselves down the road.
Cons of a Pension Plan
One downside of a pension plan is that it may give some would-be retirees a false sense of security.
A pension, with its steady income, might lead some people to avoid budgeting for basic living expenses in retirement, or to believe that their expenses will be the same each month, which is not always the case.
As a result, some retirees may not plan for increased overall living expenses due to the effects of inflation in retirement or sudden, unexpected expenses that may crop up.
There’s also the likelihood that their expenses later in life could be significantly higher, especially medical expenses as they get older.
That’s why it can be important to save for retirement in other ways, such as with an IRA, through an online brokerage account, or some other type of retirement savings plan. Just because a worker has a pension, that doesn’t necessarily mean that it’s the only retirement plan that’s right for them.
The Takeaway
Pension plans are a type of retirement savings plan that are offered by some employers that generally guarantee a certain amount of income to workers after they retire. Pension plans are defined-benefit plans, and differ in some key ways from IRAs or 401(k)s. Pensions have become less common in recent decades, and they have pros and cons, like any other financial product. Individuals may want to have other retirement savings plans along with a pension to help build their nest egg.
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FAQ
What is a pension plan?
A pension plan is a type of defined-benefit retirement plan offered by employers. Pensions are known for providing a guaranteed amount of income to retired workers. But pensions today are much less common, especially for private sector workers, and they have largely been replaced by defined contribution plans like 401(k)s.
How do pension plans work?
Generally, an employer contributes to the pension fund that will pay workers’ income benefits when they retire (in some cases, workers may also contribute to their pensions) and the money is invested. At retirement, the employee receives a guaranteed amount of income, often monthly. Pension income is taxed at ordinary income rates.
What are the different types of pension plans?
Pension plans vary, so it’s important for employees to know what the rules and restrictions of their plan are. For example, a defined-benefit plan uses a basic formula to calculate the amount the employee will receive. A cash-balance plan bases a worker’s payout on the account balance, while still providing a guaranteed income. In addition, some pensions may include insurance or spousal benefits (or not).
How do pension plans compare to 401(k)s and IRAs?
While there are several differences between these accounts, the most important distinction is that pension plans are defined-benefit plans that provide guaranteed income throughout retirement (or a lump sum) for the employee. Defined-contribution plans, like 401(k)s, do not provide guaranteed income, nor do IRAs, which are individual retirement accounts; instead, the account holder takes withdrawals in retirement.
Another important distinction is that an individual can set up a defined contribution plan or IRA and select the investments in their portfolio. But a person cannot join a pension unless they work for a company that offers one.
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Tax Information: This article provides general background information only and is not intended to serve as legal or tax advice or as a substitute for legal counsel. You should consult your own attorney and/or tax advisor if you have a question requiring legal or tax advice.
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