Pension: lump sum or annuity?

Traditional pensions — defined benefit plans — are rare today but still exist in government, education, healthcare, and some older private-sector jobs. When you leave the job, you're usually offered a choice: take a lump sum now, or receive monthly annuity payments for life. The choice is often more consequential than people realize, and the default option is rarely optimal.

The case for the annuity

• Guaranteed income for life, regardless of how long you live. You can't run out of money from it.
• No investment decisions to make. No panic during market crashes.
• Survivor benefits often continue to a spouse.
• For pensions backed by federal PBGC insurance, some protection even if the employer goes bankrupt.

The case for the lump sum

• Full control over the investment, withdrawal timing, and tax planning.
• The balance is an asset you can leave to heirs; annuity payments usually die with you (or the surviving spouse).
• If the pension fund is underfunded or the employer is shaky, taking the money now removes that risk.
• Inflation protection. Most pensions offer no cost-of-living adjustment; an invested lump sum can grow with inflation.

What most people should do

If you have significant other retirement savings (401k, IRA, brokerage), the annuity is usually worth keeping — it's longevity insurance you don't have to buy. If your pension would be your primary retirement income, the annuity's guarantee is even more valuable. If you have a large estate and health concerns, the lump sum might win. This is one of the few retirement decisions where an hour with a fee-only advisor is often worth the cost.

Running the math on a real offer

Say your employer offers either $2,100 a month for life starting at 65, or a $340,000 lump sum. Annualize the pension: $25,200. Divide by the lump sum: 7.4%. That is the guaranteed payout rate the annuity gives you — and it's a rate the lump sum would struggle to match safely, since a 4% withdrawal on $340,000 produces only $13,600 a year. For the lump sum to beat the pension, your invested money would need to sustain a 7.4% withdrawal for as long as you live, which history says is a coin flip at best. At that yield, the annuity is the strong choice for anyone in decent health.

One more wrinkle: lump sum offers are calculated using interest rates set by regulation, so the same pension produces a bigger lump sum when rates are low and a smaller one when rates are high. If you're near retirement during a high-rate period, the annuity side of the ledger quietly strengthens. Companies also periodically run limited-time buyout windows — those offers deserve the same yield math, not urgency-driven acceptance.

The survivor option decision hiding inside

Choosing the annuity opens a second choice: single-life (biggest check, stops at your death) versus joint-and-survivor options (smaller check, continues at 50-100% for your spouse). A $2,100 single-life benefit might become $1,890 with a 50% survivor option or $1,750 with 100%. For most married couples, taking a survivor option is the right call — pension death benefits are the difference between a widow with income and a widow with a hard problem. Declining survivor coverage to buy life insurance instead ('pension maximization') is heavily marketed and only occasionally pencils out; run it skeptically, because the insurance must stay affordable and in force until you die, not just until the illustration ends.

Common mistakes

• Taking the lump sum because a big number feels richer than a monthly drip. $340,000 sounds enormous; at safe withdrawal rates it's $13-14k a year.
• Ignoring inflation in the comparison. A fixed $2,100 check loses roughly a third of its purchasing power over 20 years at 2% inflation — pensions without COLAs are worth less than their yield suggests.
• Skipping the survivor option for a slightly bigger check without pricing what the surviving spouse actually lives on.
• Not checking the plan's funded status and PBGC coverage caps — guarantees are only as good as the guarantor, and PBGC caps can bite very large pensions.
• Deciding under deadline pressure during a buyout window instead of doing thirty minutes of arithmetic.

A final sanity check before you sign anything: price the annuity on the open market. Ask an online quote engine what a commercial insurer would charge for the same monthly payment for someone your age — if your pension's implied deal is meaningfully better than the commercial price (it usually is, since employer plans don't pay sales commissions), that's independent confirmation the annuity option is valuable. If the lump sum could buy you a bigger check retail, that's a rare signal the lump sum is generous.

The bottom line: divide the annual pension by the lump sum and let the yield frame the decision — above 6%, favor the checks; below 4%, favor the money; between, decide on health, spouse, other assets, and inflation protection. Married retirees should default to survivor coverage, and lump-sum takers should default to a direct IRA rollover. It's a one-time, irreversible choice, which is exactly why it deserves arithmetic instead of instinct.