How this calculator works
This calculator compares a one-time pension lump sum with a stream of monthly lifetime payments. You enter the lump sum offer, monthly pension amount, current age, life expectancy, expected investment return, and inflation. The model then reports three complementary views of the same decision.
Break-even age answers: if you take the lump sum, invest it, and withdraw the equivalent of your annual pension each year, at what age does that portfolio hit zero? Live past that age and the pension still pays while the invested lump sum is gone. Die before it and the lump sum (or your heirs) came out ahead on total dollars received.
Pension present value discounts every future monthly payment at your assumed investment return. It answers what lump sum today would be mathematically equivalent to the pension stream at that return assumption. If present value exceeds the offer, the pension looks better on pure discounted-cash-flow math.
Year-by-year comparison shows cumulative pension received, the invested lump sum with no withdrawals (growth only), and the invested lump sum after pension-equivalent withdrawals. The “Pension ahead?” column flips when cumulative checks exceed the no-drawdown invested balance — a different lens from break-even depletion.
Use all three together. A single headline age can mislead if you ignore present value, survivor needs, or how fragile the return assumption is.
What the invested lump sum lines assume
The chart’s “invested lump sum (no drawdown)” line compounds the full offer at your return assumption and never spends it. That is not a realistic spending model; it shows opportunity cost and estate value if you somehow lived off other income. The “after pension withdrawals” path is the fairer apples-to-apples comparison: same annual cash flow as the pension, funded from an invested portfolio instead of the plan sponsor.
Neither path models sequence-of-returns risk, fees, taxes, or behavioral mistakes such as selling in a downturn. Higher assumed returns push break-even later and favor the lump sum; lower returns pull break-even earlier and favor the pension. That single assumption is usually the most sensitive input — try 3%, 5%, and 7% before trusting any headline age.
Inflation matters for purchasing power even when the pension has no COLA. The calculator’s inflation input helps show the real value of cumulative payments; a fixed nominal pension loses ground every year prices rise. If your plan does include a cost-of-living adjustment, the pension side is stronger than a flat-payment model implies — treat the numbers here as conservative for COLA pensions.
Longevity, health, and household context
Break-even is only useful if your longevity assumption is honest. Family history, current health, and smoking status move the odds more than a national median. Couples should also ask whose life the pension covers: a single-life annuity that stops at the first death is a different product from a joint-and-survivor option that continues for a spouse.
If a surviving spouse would rely on that check, the pension’s insurance value can outweigh a slightly better lump-sum spreadsheet. Conversely, if both spouses have solid Social Security, pensions, or portfolios, liquidity and estate flexibility may favor the lump sum even when break-even looks early.
See related tools for the broader retirement picture: the Social Security benefit estimator, retirement withdrawal calculator, and retirement projection. For COLA context on benefits you already receive, read the Social Security COLA guide.
Taxes, rollovers, and plan risk
A taxable lump-sum distribution can push you into higher brackets in the election year. Rolling a qualified plan lump sum into an IRA can defer income tax, but it does not erase investment or longevity risk — it only changes where the money sits. Required minimum distributions later, Roth conversion windows, and state tax treatment all sit outside this calculator’s scope.
Pension elections are typically irrevocable once payments begin or the lump-sum window closes. Plan underfunding, PBGC insurance caps, and company credit risk are also outside the model. A well-funded plan with PBGC coverage and a joint survivor option is a different risk profile from an underfunded plan offering a large cash buyout — spreadsheet equivalence is not risk equivalence.
For a deeper walkthrough of the decision framework, read lump sum vs. pension explained.
Limits and professional advice
This tool does not include survivor benefits, COLAs, plan underfunding risk, PBGC insurance caps, or tax bracket effects from a taxable distribution. Use the numbers as a structured second opinion, then review health, spouse income needs, and plan documents with a fee-only financial planner and tax advisor before you elect.
If you are still accumulating toward retirement rather than choosing a payout, start with contribution and projection tools instead — this calculator is for the election moment, not for building the nest egg that precedes it.
FAQ
What does 'break-even age' mean in this calculator?
The break-even age is when an invested lump sum — being drawn down at the same annual rate as the pension — reaches zero. Before that age, you would still have money left from the lump sum. After that age, the pension is still paying but the lump sum is exhausted. If you live past the break-even age, the pension paid more over your lifetime.
What investment return should I use for the lump sum?
Use a conservative estimate — typically 4–6% for a balanced or bond-heavy portfolio appropriate for retirement. Higher return assumptions favor the lump sum; lower ones favor the pension. Try multiple scenarios: 3% (conservative), 5% (moderate), 7% (equity-heavy). The break-even age changes significantly with the assumed return.
Does this calculator include survivor benefits?
No. Most pension plans offer a survivor benefit option — a reduced monthly payment that continues to a spouse after your death. The lump sum may be more attractive if you want to ensure your heirs receive the remaining value. This calculator models the individual pension vs. lump sum math only; survivor benefit implications should factor into your decision.
Should I consider taxes when comparing the options?
Yes. Monthly pension payments and lump sum withdrawals (if from a pre-tax source) are both taxable as ordinary income in retirement. The tax treatment is similar, but a lump sum may push income into higher brackets in the year of receipt — especially if rolled over incorrectly. Rolling the lump sum into an IRA typically avoids immediate taxation. Consult a tax advisor before electing.
What if my pension has a cost-of-living adjustment (COLA)?
Some pension plans include annual COLA increases tied to inflation or a fixed percentage. This calculator models a fixed monthly payment. If your pension has a COLA, it is more valuable than the fixed-payment math suggests — the true break-even age would shift in favor of the pension.
What is 'pension present value' in the results?
Present value expresses the worth of future payments in today's dollars. The pension present value shown here discounts all future monthly payments at your assumed investment return rate — it answers 'what lump sum would I need today to generate this pension, if I could earn that return?' If the calculated present value exceeds the offered lump sum, the pension is mathematically the better deal at that return assumption.
Can I trust this calculator to make my pension decision?
Use it as one data point in a larger analysis. The calculation is mathematically sound but cannot factor in your specific health, your pension plan's financial health, survivor benefit options, tax bracket, or estate planning goals. An irreversible pension election warrants a conversation with a fee-only financial planner who can model your complete situation.