A 401(k) and a pension are not the same thing

A 401(k) is a retirement savings account that you fund yourself, usually through payroll deductions. A pension is a monthly payment your employer promises to give you for life after you retire, funded by the employer. The key difference: with a 401(k), you decide how much to save and how to invest it. With a pension, your employer decides the amount and handles all the investing.

The other major difference is risk. With a 401(k), if your investments perform poorly, your retirement savings shrink. With a pension, the employer bears that risk — they must pay you the promised amount no matter what happens in the market. This is why pensions have become rare; employers prefer to shift investment risk to workers.

Most private employers today offer 401(k)s instead of pensions. Government jobs, military service, and some union positions still include pensions. Many workers have both — a pension from an earlier job and a 401(k) from their current one.

Key Takeaways

  • You contribute to a 401(k) with your own money; your employer contributes to a pension with theirs.
  • A 401(k) balance depends on how much you saved and how well your investments performed; a pension pays a fixed monthly amount for life.
  • You can take a 401(k) with you when you change jobs; a pension usually stays with the employer who promised it.
  • A 401(k) requires you to make investment choices; a pension requires no decisions from you after retirement.
  • Withdrawing from a 401(k) before age 59½ usually costs you a 10 percent penalty plus income tax; pension payments have no early withdrawal penalty.

How contributions work: who puts money in

With a 401(k), you choose a percentage of your paycheck to set aside — typically 1 to 25 percent, depending on your plan and income. That money goes into your account before taxes are taken out (in a traditional 401(k)) or after taxes (in a Roth 401(k)). Your employer may match part of what you contribute — for example, 50 cents for every dollar you put in, up to 6 percent of your salary — but this match is optional and varies by company.

With a pension, you usually contribute little or nothing. The employer funds the entire pension from their budget. Some pensions require a small employee contribution — often 3 to 8 percent of salary — but the employer still covers the bulk of the cost. The employer hires investment professionals to manage the pension fund and ensure there is enough money to pay all retirees.

How money grows: investment control and risk

In a 401(k), you choose how your money is invested. Your plan offers a menu of mutual funds, index funds, and sometimes company stock. You decide the mix — how much goes into stocks, bonds, money market funds, or other options. If you pick aggressive investments and the market crashes, your balance drops. If you pick conservative investments and the market booms, you miss out on gains. The risk and reward are entirely yours.

In a pension, a professional investment team makes all decisions. They diversify across stocks, bonds, real estate, and other assets. If markets perform well, the pension fund grows and the employer may reduce contributions. If markets perform poorly, the employer must still pay you the promised amount — they cover the shortfall. You have no control over investment choices, but you also have no investment risk.

What you receive in retirement: amount and duration

A 401(k) gives you a lump sum — the total of everything you and your employer contributed, plus investment gains or losses. You decide when to start withdrawing and how much to take each year. If you withdraw too much early, the money runs out. If you withdraw too little, you may have money left over when you die (which goes to your heirs) or you may run out of money if you live very long. The amount you have depends entirely on how much you saved and how your investments performed.

A pension gives you a monthly check for as long as you live. The amount is calculated using a formula based on your salary and years of service — for example, 2 percent of your average salary times your years worked. If you worked 30 years and averaged $50,000 in salary, you might receive $30,000 per year ($2,500 per month) for life. The amount never changes (though some pensions adjust for inflation). You cannot run out of money, and if you die early, your heirs may receive a survivor benefit depending on the pension rules.

Portability: taking your retirement savings with you

A 401(k) is portable. When you leave a job, you can roll the balance into a new employer's 401(k), into an individual retirement account (IRA), or leave it where it is if the balance is above a certain amount (usually $5,000). You own the account and can move it whenever you change jobs. This makes 401(k)s flexible for workers who change employers frequently.

A pension is not portable in the same way. When you leave a job, you typically cannot take the pension with you. Instead, you have two choices: leave the money in the pension fund and collect monthly payments starting at retirement age, or take a lump-sum payment (if the plan allows it) and roll it into an IRA. If you leave before vesting — the point at which the pension becomes yours — you may lose the employer's contributions entirely. Vesting usually takes 5 to 10 years.

Tax treatment and withdrawal rules

Money in a traditional 401(k) is not taxed when you contribute it, but you pay income tax on withdrawals in retirement. If you withdraw before age 59½, you also owe a 10 percent penalty tax on top of income tax, with some exceptions (hardship, disability, or specific circumstances). You must start taking withdrawals at age 73 (as of 2023), whether you need the money or not.

Pension payments are taxed as ordinary income when you receive them, but there is no penalty for receiving them at any age. You pay tax only on the portion of each payment that comes from employer contributions and investment gains; the portion that comes from your own contributions is not taxed again. Pension payments continue for life with no required withdrawal dates.

Which is better for retirement security

A pension provides more predictable retirement income because the amount is fixed and may provide for life. You know exactly what you will receive each month, and you cannot outlive the money. This is valuable if you live a long time or if you are uncomfortable managing investments.

A 401(k) offers more flexibility and control. You can access your money before retirement (with penalties), adjust your withdrawals based on your needs, and leave unused balances to your heirs. However, it requires you to make investment decisions, and your retirement income depends on market performance and how long your savings last.

Most financial advisors suggest that a combination of both — a pension from a government or union job plus a 401(k) from private employment — provides the strongest retirement foundation. If you have only a 401(k), you may want to consider converting part of it to an annuity (a product that pays you a fixed monthly amount for life) to create a pension-like income stream.

Frequently Asked Questions

Can I have both a 401(k) and a pension at the same time?

Yes. If you worked for a government agency or union and then moved to a private employer, you can have a pension from the first job and a 401(k) from the second. The two are separate accounts and both can pay you in retirement. Some people also have multiple pensions from different government jobs.

What happens to my 401(k) if I die before retirement?

The balance goes to your designated beneficiary — usually a spouse, child, or other family member. They can inherit the account and withdraw the money, though they will owe income tax on it. With a pension, your beneficiary may receive a survivor benefit depending on the pension plan rules, but this is less common.

Can I convert my 401(k) into a pension-like payment?

Not directly, but you can use part of your 401(k) balance to purchase an annuity from an insurance company. An annuity pays you a fixed monthly amount for life, similar to a pension. This locks in a portion of your retirement income and removes investment risk, though annuities have fees and less flexibility than a 401(k).

What if my employer goes out of business — do I lose my 401(k)?

No. Your 401(k) is held in a separate account in your name, not the employer's account. Even if the company fails, your money is protected. With a pension, the Pension Benefit Guaranty Corporation (PBGC) insures most private pensions, so you receive at least a portion of your promised benefit even if the employer cannot pay.

Do I have to work until a certain age to get my pension?

It depends on the pension plan. Most pensions require you to reach a certain age (often 55 to 65) and have worked a minimum number of years (often 10 to 20). If you leave before meeting these requirements, you may forfeit the employer's contributions. A 401(k) has no such requirement — you can access your money at any age, though early withdrawals before 59½ usually incur a penalty.