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Pension or Lump Sum?

Pension or lump sum: at what return does the lump sum match the pension? Every piece below can be linked to, so it opens in a window on your reader's screen, current as of the record. No form to fill in.

2026 law · Reviewed September 7, 2026 · The full page, with methodology and sources · the terms · All tools

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The monthly pension, the lump sum, the ages, a return, and any pension increase; out: the age the invested lump sum runs out paying the pension, and the break-even return. In a frame it carries no cookies, no tracking, and a visible link back to the methodology. Your site has to allow frames; most do. The link that opens it in a small window is on the professionals page.

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In plain words.
Some employers offer a choice: a fixed monthly pension for as long as you live, or one lump sum now. This tool imagines investing the lump sum and paying yourself the same monthly amount from it, and shows the age the lump sum would run out at the return you choose. It also finds the return the lump sum would need to earn to last as long as the pension.
Why it matters.
The offer letter gives two numbers that are hard to compare. The break-even return turns them into one: earn more than it, and the lump sum wins; earn less, and the pension wins.
An example.
A pension of $2,500 a month against a $400,000 lump sum: invested at five percent and paying the same $2,500, the lump sum runs out at about 86. To last to 90 it would need to earn about six percent a year.
Where it stops.
It leaves out tax, a survivor option that keeps paying a spouse, the insurance that backs private pensions, and inflation on the withdrawals beyond the pension increase you set. Your health and your spouse's are the other half of the decision.

Everything here reads from one reviewed record, so a copied piece carries its year and its review date. When the law moves, the embed updates by itself; a copied table or chart keeps the year in its caption. Corrections are welcome through the contact page.