Should I take a pension or a lump sum?

TL;DR. Use a pension vs lump sum calculator to compare the lump sum's internal rate of return against the pension's guaranteed lifetime payout. The lump sum usually wins for healthy retirees with a long life expectancy and disciplined investing, but a pension buyout calculator should also weigh tax treatment, survivor benefits, and PBGC insurance before you commit to a pension rollover to IRA.

The internal rate of return is the number that decides it

The pension-vs-lump-sum decision boils down to one question: what rate of return does the pension's lifetime income stream imply, and can you beat it by investing the lump sum yourself?

Here is a worked example. A 62-year-old retiree is offered a $3,200/month pension for life or a $500,000 lump sum. The pension pays $38,400 per year. To replicate that income indefinitely from a $500,000 portfolio, you would need a 7.68% annual return — that is the pension's implied internal rate of return (IRR). If the retiree lives to 85 (23 years of payments), the IRR drops to roughly 5.2%. If the retiree lives to 90, it drops further to about 4.5%.

Now compare that to what a disciplined investor can reasonably expect. A balanced 60/40 portfolio has historically returned about 7-8% nominal. After a 1% advisory fee and 2.5% inflation, the real net return is closer to 3.5-4.5%. That means the pension's IRR is competitive — especially for retirees who live into their late 80s or beyond.

The breakeven age — where total pension payments equal the lump sum — typically falls between 78 and 82 depending on the offer. A lump sum pension vs annuity comparison that ignores life expectancy is incomplete. Pair the IRR calculation with the Life Expectancy Calculator to see where you likely fall.

Try it with your numbers

What a good pension vs lump sum calculator should show

• The pension's implied internal rate of return at multiple life expectancies (80, 85, 90, 95).
• A breakeven age showing when cumulative pension payments exceed the lump sum.
• Side-by-side projection of the lump sum portfolio balance versus remaining pension value year by year.
• Tax impact of taking the lump sum as a direct rollover to IRA versus a taxable distribution.
• Survivor benefit comparison — what a spouse receives under the pension versus the remaining lump sum balance. AdvisorCal's Pension vs. Lump Sum Calculator handles all of the above. Combine it with the Annuity Tax Calculator to model the tax treatment of each option, or the Withdrawal Longevity Calculator to stress-test how long the lump sum lasts under different spending scenarios.

Key facts

• IRS lump sum rates: the IRS sets minimum lump sum conversion rates using segment rates from corporate bond yields; higher rates mean smaller lump sums for the same pension benefit.
• PBGC guarantee (2026): the Pension Benefit Guaranty Corporation insures single-employer pension benefits up to $7,108.52/month for a 65-year-old retiree.
• Breakeven age range: for most offers, the pension surpasses the lump sum in total payouts between ages 78 and 82.
• Rollover deadline: a lump sum must be rolled directly into an IRA or employer plan within 60 days to avoid a mandatory 20% federal withholding and potential 10% early withdrawal penalty.
• Survivor benefit trade-off: choosing a 50% or 100% joint-and-survivor pension reduces the monthly benefit by 5-15%, but guarantees income for a surviving spouse.
• Pension risk transfer trend: more employers are offering lump sums to de-risk their pension obligations; roughly 40% of Fortune 500 companies have completed pension risk transfers since 2012.

Common follow-ups

What is a good internal rate of return on a pension? An IRR above 6% is generally considered favorable for the pension, meaning you would need strong market returns to beat it with a lump sum. Between 4% and 6%, the decision depends on your health, investing discipline, and whether you have other guaranteed income like Social Security. Below 4%, the lump sum is usually the better choice for most retirees — a pension commutation calculator helps quantify the exact threshold for your situation.

Can I roll a pension lump sum into an IRA? Yes. A direct rollover from the pension plan to a traditional IRA avoids immediate taxation entirely. If you take the check yourself (indirect rollover), the plan withholds 20% for federal taxes and you have 60 days to deposit the full amount — including the withheld portion — into an IRA. Miss the deadline and the entire distribution becomes taxable income, potentially pushing you into a higher bracket. A pension rollover to IRA is the standard approach for retirees who want to invest the lump sum and control withdrawals.

How does life expectancy affect the pension vs lump sum decision? Life expectancy is the single biggest variable. If you expect to live past the breakeven age (typically 78-82), the pension delivers more total dollars. If your health suggests a shorter life expectancy, the lump sum puts more money in your control — and in your estate. Use the Life Expectancy Calculator alongside the pension calculator to get a personalized read. Family longevity history, chronic conditions, and lifestyle factors all shift the math.

Should I take a pension or lump sum if I already have Social Security? Having Social Security income shifts the calculus toward the lump sum. Since Social Security already provides a guaranteed floor of lifetime income, the pension's primary advantage — longevity insurance — is partially redundant. The lump sum then offers flexibility: you can invest it for growth, manage withdrawals tax-efficiently, or leave a larger legacy. However, if your Social Security benefit is modest and the pension's IRR exceeds 5-6%, keeping the pension as a second layer of guaranteed income is defensible.

When this doesn't apply

This analysis assumes a traditional single-employer defined benefit pension with a legitimate lump sum offer. It does not apply to government pensions (FERS, state teacher plans) that rarely offer lump sum options, multiemployer plans where PBGC guarantees differ, or deferred compensation arrangements structured as pensions but lacking PBGC backing. If the employer is in financial distress, the lump sum may be the safer choice regardless of IRR — an underfunded pension carries counterparty risk that no calculator fully captures. Always verify the plan's funded status on the PBGC website before deciding.

Sources

• IRS Notice 2024-02: Updated Mortality Tables and Segment Rates for Lump Sum Conversions
• PBGC Maximum Monthly Guarantee Tables (2026)
• IRS Rollover Chart: Direct vs. Indirect Rollovers

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