When you retire (or accept a pension buyout offer), you often face one irreversible decision: keep the guaranteed monthly pension for life, or take a single lump sum payout you can invest yourself. There is no universally right answer — it hinges on the return you can realistically earn, how long you expect to live, and how much guaranteed income you need.
This calculator does the math for you. Enter your numbers and it computes the present value of the pension, the break-even return you'd need to beat it, the first-year payout rate, and shows how long the lump sum would last if you invested it and drew the same income.
How to Decide: The Three Numbers That Matter
- Present value of the pension — what the lifetime stream of payments is worth in today's dollars at your expected return. If it exceeds the lump sum, the pension is the richer offer.
- Break-even (implied) return — the return the lump sum must earn to match the pension. Beat it safely and the lump sum wins; fall short and the pension wins.
- Payout rate — your annual pension divided by the lump sum. Above ~6% is hard to replicate safely; below ~5% the lump sum is usually generous.
When the Pension Usually Wins
The guaranteed monthly pension tends to be the better choice when you expect to live a long time, when you value certainty over the chance of higher returns, when you have little other guaranteed income, or when the break-even return is high (say 7%+) — a rate that's difficult to earn safely. A pension is essentially an inflation-resistant annuity you can't outlive, and you can't be tempted to overspend or lose it in a market crash.
When the Lump Sum Usually Wins
The lump sum is often better when the break-even return is low, when you have health concerns or a shorter life expectancy, when you want to leave money to heirs (a single-life pension stops when you die), when you're worried about the plan's solvency, or when you already have ample guaranteed income from Social Security and other sources. Rolling it into an IRA keeps it tax-deferred and under your control.
Many retirees split the difference: take the pension for baseline security and keep other savings invested for growth and legacy. The right answer is personal — this calculator gives you the numbers to make it deliberately.
Frequently Asked Questions
Is it better to take a pension or a lump sum?
It depends on the break-even return. Compare the pension's present value to the lump sum. The key number is the pension's implied return — the annual return the lump sum would have to earn to match the lifetime payments. If you can confidently and safely earn more than that rate, the lump sum tends to win; if not, the guaranteed pension is usually stronger. Health, longevity, survivor needs, and how much other guaranteed income you have also matter.
How do you calculate the present value of a pension?
Present value discounts every future payment back to today using a discount rate (your expected investment return). You sum each year's payment divided by (1 + rate) raised to the number of years away, adjusting for any cost-of-living increases and how many years you expect to collect. A lower discount rate or a longer life expectancy makes the pension worth more today.
What return would I need to beat my pension?
That is the pension's implied return, or break-even rate — the annual return at which investing the lump sum would exactly replicate the pension's payments over your life expectancy. If your realistic, risk-adjusted return is higher than the break-even rate, the lump sum can come out ahead; if it is lower, the pension wins. Most break-even rates on pension buyout offers fall between 4% and 7%.
What is a good pension lump sum payout rate?
The payout rate is your first-year annual pension divided by the lump sum offer. A payout rate of 6% or higher (for example, $12,000/year on a $200,000 lump sum) is generally attractive relative to what a safe annuity or bond portfolio pays. A payout rate below about 5% often signals the lump sum is generous relative to the income it replaces.
Does a lump sum pension get taxed?
A lump sum paid directly to you is taxed as ordinary income in that year, may push you into a higher bracket, and carries 20% mandatory withholding. You can avoid the immediate tax by rolling it directly into a Traditional IRA or 401(k), where it keeps growing tax-deferred. Monthly pension payments are taxed as ordinary income as you receive them.
What happens to my pension if my company goes bankrupt?
Most private-sector pensions are insured by the Pension Benefit Guaranty Corporation (PBGC), which keeps paying benefits up to federal limits if the plan fails. Those limits cover most retirees fully, though very large pensions may be partially capped. A lump sum rolled into your own IRA removes insolvency risk entirely — at the cost of giving up guaranteed lifetime income.