Pension lump sum vs. annuity: how to decide
When your employer offers a pension buyout — a lump sum or lifetime monthly payments — the choice is irreversible and worth tens of thousands. Here's the framework to decide.
When a pension offers "take the lump sum or the monthly annuity," you're being asked to price your own longevity and discipline — and the choice is usually irreversible and worth tens of thousands of dollars. The short answer: take the annuity when its payout rate beats a commercial quote and you value guaranteed lifetime income; take the lump sum (rolled to an IRA) when you can reliably out-earn that rate, the plan is weak, or flexibility and a legacy matter more. This guide walks the math, the tax traps, the overrides that beat the math, and exactly how to run your own numbers. A payout rate is not an interest rate: most of each early check is your own principal coming back to you, so the percentage is not comparable to a bond or CD yield. A pension's guarantee rests on the plan and, for most private plans, the PBGC's age-based backstop; a commercial SPIA's rests on the issuing insurer's claims-paying ability. Neither is FDIC-insured.
What you're really choosing
Strip away the jargon and a pension buyout is a trade between certainty and control. Each side wins on different dimensions, and your personal situation decides which dimensions matter.
- Pension annuity: guaranteed monthly income for life, often with a survivor option. It is longevity-proof and removes investment decisions, but it is typically flat (no inflation adjustment) and leaves little or nothing to heirs.
- Lump sum: control, liquidity, investment upside, and a legacy asset you can pass on. In exchange, you take on market risk, longevity risk (the money can run out), and the behavioral temptation to overspend.
Illustrative single-life payout by starting age — representative levels for A.M. Best A− and above carriers, not a survey or quote. Payout levels as of October 2026. A female buyer's check runs about 4.2% lower at 65 and 7.1% lower at 80, reflecting longer life expectancy. Actual quotes vary by carrier, state, sex and payout option.
How to evaluate it: the payout rate
Start with one number you can compute in seconds: the payout rate equals annual pension income divided by the lump sum offered. It tells you how hard your money is working inside the pension.
Then get an apples-to-apples comparison. Ask an insurer (or use the calculator below) what the same lump sum would buy as a commercial single-premium immediate annuity (SPIA) for someone your age with the same survivor terms. If the pension's payout rate is higher than the SPIA's, the pension is handing you a deal you literally cannot buy on the open market — a strong reason to keep it.
- Compute the payout rate: annual income divided by lump sum (for example, $31,200 divided by $400,000 = 7.8%).
- Benchmark it against a commercial SPIA quote for the same age and survivor option.
- Check the discount-rate effect: lump-sum offers shrink when interest rates rise and grow when rates fall, so timing matters.
A worked break-even example
A 62-year-old is offered $400,000 as a lump sum or $2,600/month for life starting now. Here is the arithmetic, step by step:
- Annual pension income: $2,600 × 12 = $31,200/year.
- Payout rate: $31,200 divided by $400,000 = 7.8%.
- Actuarial life expectancy for a 62-year-old man is roughly 20½ more years (to about 83), so the nominal total received is about $31,200 × 20.5 ≈ ~$640,000.
- The implied internal rate of return on the $400,000 — the rate that makes those future checks equal the lump today — works out to roughly 5.0% per year.
The break-even is now clear. If you can reasonably expect to earn more than ~5% after fees and taxes on the invested lump sum — and you want flexibility and a legacy — take the lump. If a guaranteed-for-life 5% (with no market risk and no work) looks better than what the market offers you, take the annuity. The longer you live past about 83, the better the annuity looks; die early, and the lump wins.
| Live to age… | Total annuity paid | Lump sum left if you withdraw the same $31,200/yr and earn 5% | Which wins |
|---|---|---|---|
| 70 (8 years) | ~$250,000 | ~$290,000 | Lump sum (heirs get what's left) |
| About 83 (20½ years) | ~$640,000 | About $0 (runs out) | Roughly even |
| 95 (33 years) | ~$1,030,000 | $0 since about 83 | Annuity (it keeps paying about 12 more years) |
Beyond the math: four overrides
The IRR tells you the price of the trade, but four real-world factors can flip the decision regardless of the rate.
- Plan strength and PBGC backing. Private single-employer pensions are insured by the Pension Benefit Guaranty Corporation up to an age-based maximum. If your promised benefit exceeds that cap, or the plan is badly underfunded, taking the lump and rolling it out protects more of your value. One catch: federal funding rules bar lump sums from plans less than 60% funded (or under 100% funded while the employer is in bankruptcy) and allow at most half of one between 60% and 80% funded, so check your plan's annual funding notice before counting on that option.
- Spousal survivor needs. A joint-and-survivor pension protects a spouse who would otherwise lose the income. A poorly managed lump sum can vanish; a survivor annuity cannot.
- Tax-bracket timing. Rolling the lump to an IRA defers all tax until you withdraw, giving you control over which year income lands. Pension payments lock in taxable income every year whether you need it or not.
- Behavioral risk. If you tend to spend windfalls or chase hot investments, the automatic monthly check is a feature, not a limitation. Be honest with yourself here.
The tax and rollover rules that bite
How you move a lump sum matters as much as whether you take it. The single most expensive mistake is taking the check yourself.
A direct rollover keeps the balance tax-deferred and out of your taxable income entirely. The pension annuity, by contrast, is taxed as ordinary income in the year each payment is received. For the mechanics of taxable pension and annuity income, see IRS Publication 575.
The hybrid: a pension floor you control
This isn't strictly all-or-nothing. If you take the lump sum and roll it to an IRA, you can annuitize part of it commercially to cover your non-negotiable bills — housing, food, insurance, utilities — and invest the rest for growth and heirs.
That recreates a pension's guaranteed floor while keeping flexibility and a legacy asset. It works especially well when the pension's payout rate is only middling: you capture some lifetime-income certainty without locking up every dollar.
Who should take the annuity vs. the lump sum
Use these profiles as a gut check after you've run the numbers.
Lean toward the pension annuity if you:
- Have a long family longevity history or are in good health.
- Value a hands-off, guaranteed check and worry about managing a large balance.
- Find the pension's payout rate beats a commercial SPIA quote.
- Have a spouse who needs survivor protection and elect the joint option.
Lean toward the lump sum (rolled to an IRA) if you:
- Have health issues or a family history of shorter lifespans.
- Can realistically out-earn the implied IRR and tolerate market swings.
- Have other guaranteed income (Social Security, a second pension) covering essentials.
- Want to leave money to heirs, or the plan sponsor looks financially shaky.
Mistakes to avoid and your next steps
Most regret comes from a handful of avoidable errors. Sidestep these before you sign anything.
- Ignoring inflation. A flat $2,600/month loses roughly a third of its buying power over 20 years at modest inflation. Don't compare a flat annuity to an investment as if both held value equally.
- Waiving survivor protection without consent. For most private-sector pensions, federal law requires your spouse's written consent, witnessed by a notary or a plan representative, to give up the joint-and-survivor annuity. That includes taking the lump sum as well as a single-life annuity, so never sign it away casually.
- Taking the check personally. See the tax warning above — always roll directly.
- Benchmarking against a guess instead of a quote. Get a real SPIA quote for your age and survivor option so your benchmark is honest.
Next steps: compute your payout rate, request a same-age SPIA quote, confirm your PBGC coverage and your plan's funded status, and ask a fee-only fiduciary to sanity-check the decision. Use the full election window — these offers are permanent.
