Pension Lump Sum vs Monthly Annuity: Which to Take

The one number that frames the whole decision

Most pension lump-sum-vs-annuity decisions come down to a single ratio: the implied payout rate. Divide the annual pension income by the lump-sum offer. If the plan offers $2,000 a month ($24,000 a year) or a $400,000 lump sum, the implied rate is $24,000 ÷ $400,000 = 6%.

Now compare that to what you could safely withdraw from the lump sum yourself. The classic guideline is the 4% rule — withdraw about 4% of a balanced portfolio in year one, adjust for inflation, and it has historically lasted 30 years. So a 6% guaranteed payout is meaningfully better than the ~4–5% you could prudently take on your own, which tilts toward the annuity. Flip the numbers — a $24,000 pension against a $600,000 lump sum is only a 4% implied rate, and the lump sum looks far more attractive because you could match that income while keeping the principal.

What the annuity buys: longevity insurance

The monthly annuity's real product is longevity insurance — protection against outliving your money. The pension keeps paying whether you live to 75 or 100, and that guarantee is worth more the longer and healthier your expected retirement.

It also eliminates sequence-of-returns risk: a bad market in your first few retirement years can permanently shrink a self-managed portfolio, but it can't touch a guaranteed pension check. The trade-offs are real, though. A standard single-life annuity usually pays nothing to heirs — payments stop when you (or your survivor) die. Most are fixed in nominal terms, so a 3% inflation rate roughly halves the check's buying power over 24 years. And if you're married, the joint-and-survivor option that protects a spouse typically cuts the monthly payment by 10–25%. Healthy couples with long family histories are exactly who benefit most from taking the income.

What the lump sum buys: control and inheritance

The lump sum hands you the keys: roll it into an IRA and you control how it's invested, how much you withdraw, and what's left for heirs. That control is the lump sum's biggest advantage — and its biggest risk, because you've also taken on the market and longevity risk the plan used to carry.

The lump sum tends to win when:

• The implied payout rate is low (near or below 4%), so you can replicate the income and still keep principal.
• Inheritance matters — any balance passes to your children or beneficiaries, which a single-life annuity can't offer.
• You have other guaranteed income (Social Security, a spouse's pension) covering your essentials, so you don't need this pot to be a guaranteed paycheck.
• You have concerns about the plan's solvency. Private pensions are insured by the PBGC, but only up to federal limits — taking the lump sum removes that dependency entirely.

A real example: $2,200/month vs $480,000

Suppose your plan offers $2,200 a month ($26,400 a year) for life, or a $480,000 lump sum. The implied payout rate is $26,400 ÷ $480,000 = 5.5% — comfortably above a safe 4–5% withdrawal.

To generate $26,400 a year from the lump sum at a 4% withdrawal rate, you'd need to draw $26,400 from $480,000, which is 5.5% — higher than the 4% rule considers safe over a long retirement. In other words, the pension is paying you a rate you'd struggle to sustain on your own without risking running out. For a healthy 65-year-old, that points to the annuity. But if you valued leaving the $480,000 to heirs, or had reason to expect a shorter retirement, the lump sum's inheritability could outweigh the income edge. Run both sides with your actual offer in the calculators below before you commit — the choice is usually irreversible.

How do I decide between a pension lump sum and a monthly annuity?

Start with the implied payout rate: divide the annual pension by the lump-sum offer. If it clears roughly 5–6%, the annuity is hard to beat, especially with good health and longevity. If it's near or below 4%, the lump sum usually wins because you can match the income while keeping the principal and leaving it to heirs.

What is a good implied payout rate on a pension?

Compare it to a safe withdrawal rate of about 4–5%. An implied rate of 6–7% is excellent and strongly favors the annuity, since you'd struggle to safely withdraw that much from the lump sum yourself. A rate near 4% is roughly break-even, and below 4% generally favors taking the lump sum.

Does the monthly pension leave anything to my heirs?

Usually not. A standard single-life annuity stops paying when you die. A joint-and-survivor option continues payments to a spouse but reduces your monthly amount by roughly 10–25%, and even that leaves nothing to children. If inheritance is a priority, the lump sum — which passes any remaining balance to heirs — is often the better choice.

Is my pension safe if the company runs into trouble?

Private pensions are insured by the Pension Benefit Guaranty Corporation (PBGC), but only up to federal limits that can fall short of a large benefit. If you're worried about the plan's long-term solvency, taking the lump sum and rolling it to an IRA removes that dependency, putting the money fully under your control.

How does inflation affect the lump sum vs annuity choice?

Most pensions pay a fixed nominal amount, so inflation steadily erodes its buying power — at 3% inflation, a check loses roughly half its value over 24 years. A lump sum invested for growth can outpace inflation, which is a point in its favor. Weigh that against the annuity's guarantee that you can never outlive the income.

Can I take the lump sum and buy my own annuity later?

Yes. Rolling the lump sum to an IRA and later buying a commercial annuity gives you flexibility — you can annuitize part of it, keep the rest invested for heirs, or wait until rates are favorable. Just compare the income a private annuity would buy against the pension's offer; an employer annuity sometimes pays more than you could replicate on the open market.