Annuity vs. Pension: Building Your Own

What is the difference between an annuity and a pension?

Both tools solve the same problem: turning years of work into a paycheck you cannot outlive. The difference is who stands behind the check. A pension, formally a defined benefit plan, is a promise your employer makes and funds. You earned it year by year, and the plan carries the investment risk and the risk of a very long life.

An annuity is the do-it-yourself version. You bring the money, usually from savings, an IRA, or a 401(k), and an insurance company takes over the job your employer's plan would have done: paying you on schedule, potentially for life. Same paycheck, different promiser, and a different backstop if things go wrong.

Annuity guarantees are backed by the claims-paying ability of the issuing insurer. They are not FDIC-insured and not bank deposits.

How does a pension actually work?

A traditional pension pays a monthly benefit set by formula, typically years of service and salary. Once payments start, the check arrives for life, and for married retirees the plan generally must offer a joint and survivor option unless your spouse waives it in writing. You do not manage the money, and you cannot outlive the benefit.

The safety net has layers. Your employer must fund the plan under federal rules, and if a private-sector plan fails, the Pension Benefit Guaranty Corporation, a federal agency, takes over payments up to legal limits. Government and church pensions sit outside that system and rest on their own sponsors. The honest downside of pensions is availability: most private employers stopped offering them decades ago, which is why the annuity conversation exists.

How can an annuity work as a do-it-yourself pension?

Two annuity families do the pension imitation best. A single premium immediate annuity, or SPIA, converts a lump sum into income that starts within about a year. A deferred income annuity, or DIA, converts money today into income that begins at a date you choose. Both can pay for one life or two, just as a pension would.

The engine underneath is the same as a pension's: pooling. Some contract owners collect briefly and some for decades, and the insurer prices the promise across the whole group. What you give up is access: money converted into income is no longer a pile you can spend, which is why an income annuity suits essential expenses, not everything you have. Our guide to guaranteed lifetime income shows how the paycheck is built and what each payout option costs.

Any lifetime income guarantee is backed by the claims-paying ability of the issuing insurer; it is not FDIC-insured or bank-guaranteed.

This comparison is educational and general. Plan documents and contract terms control.

Should you take the monthly pension or the lump sum?

This is where the two worlds collide in real life. Many retirees are offered a lump-sum buyout, and taking it means becoming your own pension manager, sometimes by buying an annuity with the proceeds. A monthly pension is priced on group terms, so a retail contract is often hard-pressed to match it dollar for dollar. That does not settle it; income is not the only thing that matters.

One wrinkle worth knowing: some employers hand their pension obligations to an insurance company in a pension risk transfer. Your pension quietly becomes a group annuity, and the backstop shifts from the PBGC to the insurer's claims-paying ability and state guaranty associations. The letter announcing it deserves a careful read.

Before choosing, put these questions on paper:

1. What exact monthly income does the pension pay, for my life and my spouse's, and what lump sum is offered instead, in writing?
2. How is my health, and how long did my parents live? Lifetime income rewards those who collect longer.
3. If I take the lump sum, who manages it, at what cost, and what happens if I live past ninety?
4. Does my spouse need this income after I die, and what does each survivor option cost in monthly dollars?
5. Is anyone rushing me? A salesperson's deadline is a reason to slow down, not speed up.

How are pensions and annuities taxed?

Mostly the same way, and mostly as ordinary income. Pension payments from an employer plan are generally fully taxable, because the money going in was never taxed. An annuity bought with pre-tax IRA or 401(k) dollars works the same way: every payment is ordinary income.

An annuity funded with after-tax savings is different in one useful way. Growth inside the contract is tax-deferred, never tax-free, and withdrawn gains are taxed as ordinary income. But if you annuitize a contract you funded with after-tax dollars, part of each payment returns your own principal untaxed until your basis is used up. Withdrawals before age 59½ may also face a 10% federal penalty. How this interacts with Social Security and required minimum distributions is covered in our guide to the retirement tax picture. Consult a licensed tax advisor about your situation.

When is building your own pension the wrong move?

Honesty first: plenty of retirees should not buy an income annuity at all. If Social Security plus an existing pension already covers your essential expenses, more guaranteed income may solve a problem you do not have, at the cost of flexibility you do. If you might need the money back, deferred annuities carry surrender periods, and annuitized dollars are gone as a lump sum entirely. If leaving the largest possible estate is your first priority, lifetime income works against that goal by design. And a level payment that feels comfortable at 65 buys noticeably less at 85.

The self-check that matters is simple: name the monthly gap between your essential expenses and your guaranteed income. If there is no gap, there is probably no job for an annuity to do. For a question-by-question walkthrough, read is an annuity right for me. Curious what a specific slice of savings could translate into? Our post on how much a $100,000 annuity pays per month uses clearly labeled illustrative ranges, not quotes.

Prefer to watch first?

"The Descent," our short education film

Why retirement's riskiest years come after you stop working, and the honest way to weigh each risk. About twenty minutes, plainly labeled Annuity Explained education.

Watch the film →