The core difference: who owns the money and who takes the risk

A pension is a monthly payment your employer (or former employer) sends you for life, based on how long you worked there and what you earned. The employer owns the fund, manages the investments, and guarantees the payment — if the fund runs out of money, the employer is still legally responsible for sending your check.

An annuity is a contract you buy from an insurance company. You give them a lump sum of money (or a series of payments), and they promise to send you monthly payments for a set period or for life. You own the contract, but the insurance company owns and invests the money. If the company fails, your payments are protected only up to state insurance limits, usually $250,000.

The practical difference: with a pension, your employer bears the investment risk and the longevity risk — the risk that you live longer than expected and they have to keep paying. With an annuity, you bear both risks, though the insurance company guarantees the payment amount.

Key Takeaways

  • A pension is a promise from your employer to pay you monthly for life; an annuity is a contract you purchase from an insurance company that does the same thing.
  • Your employer funds and manages a pension and is legally responsible if the fund fails; you fund an annuity and the insurance company invests it.
  • Pensions are usually not portable — you cannot take them with you if you change jobs — while annuities move with you because you own the contract.
  • If your employer goes bankrupt, the Pension Benefit Guaranty Corporation (PBGC) may cover part of your pension; if an insurance company fails, state insurance guaranty funds cover annuities up to a limit.
  • Some people receive both: a pension from a long career at one employer, and an annuity purchased with a lump sum or retirement savings.

How each one pays out

A pension typically begins paying when you reach a certain age (often 55 to 67, depending on your plan) and you have worked there long enough (often 10 to 20 years). The amount is calculated by a formula: usually a percentage of your average salary multiplied by your years of service. Once you start receiving it, the payment stays the same each month for the rest of your life, though some pensions increase slightly each year to account for inflation.

An annuity begins paying whenever you choose to start it, as long as you have funded it. You can buy an annuity at any age. The payment amount depends on how much money you put in, your age when you start receiving payments, and current interest rates. Like a pension, the payment is usually fixed for life, though some annuities offer payments that increase over time.

Both are designed to replace income you no longer earn from work. Neither requires you to make decisions about how to invest the money once you are receiving payments — the employer or insurance company handles that.

Portability and what happens if you change jobs

A traditional pension is not portable. If you leave your job before you are may be able to access to receive it, you usually forfeit it entirely, or you receive only a small refund of what you contributed. If you stay long enough to become vested (typically 5 to 10 years), you can leave your job and come back for your pension later, but the amount is frozen at the salary and service level when you left.

An annuity is portable because you own it. If you change jobs, the annuity stays with you. You can move it to a different insurance company, roll it into a retirement account, or keep it where it is. This flexibility is one reason some people prefer annuities for retirement planning.

Some employers offer a hybrid: a cash balance plan, which looks like a pension but is portable like an annuity. These are less common than traditional pensions.

What protects your money if the company fails

If your employer goes bankrupt or the pension fund runs out of money, the Pension Benefit Guaranty Corporation (PBGC) steps in. This is a federal agency that insures traditional pensions. It does not cover the full amount — there is a maximum, which varies by age and year — but it covers a significant portion for most workers. In 2024, the maximum was roughly $5,000 per month for someone who retired at 65, though this figure changes annually.

If an insurance company that sold you an annuity fails, your state's insurance guaranty fund covers the loss, usually up to $250,000 per contract. This is lower than PBGC protection for many pensions, which is one reason some financial advisors recommend checking the financial strength rating of an insurance company before buying an annuity.

Neither protection is automatic — you do not have to do anything to activate it — but both have limits. If your pension or annuity exceeds the protection limit, the excess is at risk.

Tax treatment when you receive payments

Pension payments are taxed as ordinary income in the year you receive them. If you contributed money to the pension yourself (some plans require employee contributions), a portion of each payment is tax-free, but most of it is taxable. You do not pay taxes upfront; taxes are withheld from each check.

Annuity payments are also taxed as ordinary income, with the same withholding process. However, if you bought the annuity with after-tax money (not from a retirement account), a portion of each payment is considered a return of your principal and is not taxed. If you bought it with pre-tax retirement savings, the entire payment is taxable.

Both pensions and annuities are treated differently from lump-sum distributions. If your employer offers you a lump sum instead of a pension, or if you withdraw money from an annuity early, different tax rules apply, and you may owe penalties.

When you might have both

It is common for someone to receive both a pension and an annuity in retirement. For example, you might have worked 25 years at a company with a pension plan, then changed jobs and rolled your 401(k) into an annuity to create additional may provide income. Or you might have a small pension from a former employer and purchased an annuity with savings to supplement it.

Some people use annuities strategically to cover essential expenses (like housing and food) with the pension, and use other savings for discretionary spending. This approach reduces the risk that you will run out of money in old age, because part of your income is may provide regardless of market performance or how long you live.

Frequently Asked Questions

Can I convert my pension into an annuity?

Some pension plans allow you to take a lump-sum payout instead of monthly payments, and then use that money to buy an annuity. This is called a "pension buyout" or "lump-sum distribution." Not all plans offer this option, and it is a permanent decision — once you take the lump sum, you lose the pension's protections. Check with your plan administrator before deciding.

What if I die before I receive all the money from my annuity?

It depends on the type of annuity you bought. A "life only" annuity pays nothing to your heirs if you die. A "life with period certain" annuity guarantees payments for a set number of years (like 10 or 20 years), so if you die early, your heirs receive the remaining payments. A "joint and survivor" annuity continues paying your spouse after you die. These options cost different amounts, so choose based on your situation.

Is an annuity the same as a 401(k)?

No. A 401(k) is a retirement savings account where you choose how to invest the money; an annuity is a contract that guarantees income. You can use money from a 401(k) to buy an annuity, but they are different products. A 401(k) gives you flexibility and control; an annuity trades that control for a may provide payment.

Can I get my pension money back if I change my mind?

No. Once you start receiving pension payments, you cannot stop them or return the money. With an annuity, you may have a short window (usually 10 to 30 days) to cancel after purchase, but once that period ends, you are committed. This is why it is important to understand both products before you commit to either one.