Want the full decision framework - when the lump sum wins, when the pension wins, the tax and survivor traps, and how to roll a lump sum over tax-free? Read the companion guide.
Read the Lump-Sum vs Annuity Guide →
Short Answer
Take the lump sum when you can confidently earn more than the pension's break-even return on it, when your life expectancy is short, or when you need flexibility and an inheritance. Keep the monthly pension when the break-even return is high, when you expect a long life, or when you value a guaranteed check you cannot outlive. The math comes down to one number: discount the pension to a present value at the return you expect, and compare it to the lump sum. A retiree offered $250,000 instead of $1,400 a month at age 65, expecting a 5% return to age 87, finds the pension is worth about $223,900 today, so the lump sum wins by about $26,100 - unless their return falls below the 3.8% break-even.
Key Takeaways
- One number decides it: the break-even return (the pension's internal rate of return). Earn more than it → lump sum; earn less → pension.
- A lower expected return favors the pension; a higher return favors the lump sum.
- Living longer favors the pension; a short life expectancy favors the lump sum.
- The payout rate (annual pension ÷ lump sum) is a quick gut check - above ~6-7% the pension is hard to beat.
- A COLA raises the pension's value and the break-even return; most private pensions have none.
- Roll a lump sum directly to an IRA to keep it tax-deferred; a cash payout is taxed at once and may face 20% withholding and a 10% penalty before 59½.
- This is a pre-tax present-value test; health, survivor needs, plan solvency, and your own discipline still matter.
How the Comparison Works
The tool puts both choices in today's dollars so they can be compared directly. For the full decision framework - taxes, survivor options, and plan risk - see the Lump-Sum vs Annuity Guide.
Step 1: Count the Payments Confirmed
The number of monthly payments is the months from your current age to your life expectancy age (years remaining times 12). A 65-year-old expecting to reach 87 has 264 monthly payments to value.
Step 2: Discount Each Payment to Today Confirmed
Each future payment is worth less than a dollar today, because a dollar invested now would grow. The tool divides each monthly payment by (1 + monthly rate) raised to the payment number, where the monthly rate is your expected annual return divided by 12. Adding up every discounted payment gives the present value of the pension.
Step 3: Apply Any COLA Confirmed
If the pension has a cost-of-living adjustment, the tool raises the payment by that percentage at the start of each new year before discounting it. A COLA increases the present value and makes the pension harder to beat.
Step 4: Compare and Find the Break-Even Confirmed
The tool compares the pension's present value to the lump sum, then solves for the break-even return (the rate that makes the two equal, the pension's internal rate of return) and the break-even age (how long you must live for the pension to catch up at your chosen return). These two numbers turn a guess into a decision.
Worked Examples
Example 1 - $250,000 vs $1,400/mo, age 65 to 87, 5% return, no COLA
Present value of the pension$223,900
Lump-sum offer$250,000
Break-even return3.8%
Winner at 5%Lump sum by $26,100
Example 2 - Same offer, but you expect only a 3% return
Present value of the pension$270,300
Lump-sum offer$250,000
Break-even age (at 3%)84.8
Winner at 3%Pension by $20,300
Example 3 - $200,000 vs $1,100/mo, age 60 to 85, 6% return, 2% COLA
Present value of the pension$205,900
Break-even return (with COLA)6.3%
Winner at 6%Pension by $5,900
Example 4 - High payout: $150,000 vs $1,200/mo, age 65 to 90, 4% return
Pension payout rate9.6%
Break-even return8.4%
Winner at 4%Pension by $77,300
Example 5 - Short life expectancy: $300,000 vs $1,500/mo, age 65 to 72, 5%
Present value of the pension$106,100
Lump-sum offer$300,000
Winner at 5%Lump sum by $193,900
Example 6 - Ignore returns: $250,000 vs $1,400/mo, age 65 to 87, 0% return
Total nominal payments$369,600
Break-even age (at 0%)79.9
Winner at 0%Pension by $119,600
Practitioner Insight (LMN Tax Inc.)
LMN Tax Inc. - Planning Notes
The break-even return is the number we anchor every conversation on. When a client brings us a lump-sum buyout letter, we compute the rate that makes the pension and the lump sum equal. If that rate is 3 to 4 percent, the lump sum usually wins, because a diversified portfolio can reasonably beat it over a long horizon. If the break-even is 6 percent or higher, we lean hard toward keeping the pension, because earning more than 6 percent net of fees and sequence risk for thirty years is not a sure thing.
People systematically underestimate their own longevity. The break-even age the calculator shows is the hurdle, and we compare it against real mortality data, not a gut feeling. A healthy 65-year-old couple has a strong chance that at least one spouse lives past 90. When the break-even age is in the low 80s, the odds favor the pension for a married couple far more than a single person assumes.
The tax trap we see most is a retiree taking the lump sum as a check instead of a direct rollover. The plan withholds 20 percent, the full amount lands as ordinary income, and a $300,000 buyout can push a middle-income retiree into the top brackets for one brutal year. If the lump sum wins on the math, we almost always route it as a direct trustee-to-trustee rollover into an IRA, so the decision to spend or invest happens later and in smaller, controlled withdrawals.
A pension with no COLA is quietly worth less than it looks. Twenty years of 3 percent inflation cuts the buying power of a flat $1,400 check roughly in half. We always rerun the comparison with a COLA toggle so clients see that a flat private pension is a slowly shrinking asset, while a government pension with a COLA is a genuinely different and more valuable promise.
When This Calculator Does Not Cover Your Situation
- Survivor and joint options. A joint-and-survivor pension pays a reduced amount but continues to a spouse. This tool values a single-life stream; a survivor benefit can materially raise the pension's real value to a couple.
- Investment risk on the lump sum. The comparison assumes you actually earn your chosen return every year. A guaranteed pension carries no market or sequence-of-returns risk; a self-managed lump sum does.
- Plan credit risk. If the pension sponsor is financially weak, the PBGC guarantee may cap a large benefit. A shaky plan can tilt the decision toward the lump sum even when the math favors the pension.
- Taxes on a cash lump sum. If you do not roll the lump sum over, it is taxed all at once and can spike your bracket. The pre-tax present-value comparison here does not model that one-year tax cost.
- Partial lump sums and hybrid offers. Some plans let you take part as a lump sum and part as an annuity; this tool compares an all-or-nothing choice.
- Interest-rate timing on the offer. Plan lump sums are set using IRS segment rates; an offer can be larger or smaller depending on the rates in effect, which this tool takes as a fixed input.
Frequently Asked Questions
Should I take the pension lump sum or the monthly payments?
It depends on the break-even rate of return. Convert the monthly pension to a present value at the return you realistically expect to earn. If that present value is more than the lump sum, the pension wins; if it is less, the lump sum wins. The single cleanest test is the break-even return (the pension's internal rate of return): if you can confidently earn more than that rate on the invested lump sum, take the lump sum; if not, the guaranteed pension is usually the stronger choice. Health, longevity, survivor needs, and how much you value a guaranteed check also matter.
What is the break-even return on a pension?
The break-even return is the rate of return at which the present value of all the future pension payments exactly equals the lump-sum offer, also called the pension's internal rate of return. If you expect to earn less than the break-even return on the lump sum, the pension is worth more; if you expect to earn more, the lump sum is worth more. A typical pension break-even return falls in the 3 to 6 percent range, which is why a longer life expectancy and a lower expected return both favor keeping the pension.
Is a pension lump sum taxable?
A lump-sum distribution from a qualified pension is ordinary income in the year you receive it unless you roll it over. If you have the plan directly roll the lump sum into a traditional IRA or another eligible plan, no tax is due until you later withdraw the money, and it keeps growing tax-deferred. If the plan instead pays the lump sum to you, it is generally subject to 20 percent mandatory federal withholding and, if you are under age 59 and a half, a 10 percent additional tax may apply unless an exception such as the rule of 55 covers you.
How does a cost-of-living adjustment change the decision?
A cost-of-living adjustment (COLA) raises the monthly payment each year, which increases the present value of the pension and pushes the break-even return higher, making the pension more attractive. Most private-sector pensions have no COLA, so their real value erodes with inflation over a long retirement. Government and some union pensions often include a COLA. Enter the annual COLA percentage to see how much it shifts the comparison.
What break-even age should I use?
The break-even age is the age you must live to for the cumulative discounted pension payments to equal the lump sum at your chosen return. Compare it to a realistic life expectancy: many 65-year-olds live into their late 80s, and a healthy non-smoker often longer. If your honest life expectancy is comfortably past the break-even age, the pension tends to win; if your health or family history suggests a shorter life, the lump sum looks better. The calculator shows the break-even age so you can judge it against your own situation.
Is my monthly pension safe if I do not take the lump sum?
Most private-sector defined-benefit pensions are insured by the Pension Benefit Guaranty Corporation (PBGC) up to annual limits, so even if the employer fails you generally still receive a guaranteed benefit, though a very large pension could be partly capped. Government and church plans are not PBGC-insured but are backed by the sponsor. Plan financial health, the PBGC guarantee limit for your age, and whether your benefit exceeds that limit are worth checking before you rely on the monthly payments for life.
Does this calculator account for taxes?
The comparison is done pre-tax on purpose. A lump sum rolled into an IRA and a monthly pension are both taxed as ordinary income when the money is actually withdrawn or received, so comparing their pre-tax present values is an apples-to-apples test. Taxes still matter for timing: a cash lump sum not rolled over is taxed all at once and can spike you into a higher bracket, while pension payments spread the income out. Model the bracket impact separately if you plan to take the lump sum in cash.
What to Do Next
If the Lump Sum Wins the Math
Do not take it as a check. Ask the plan for a direct trustee-to-trustee rollover into a traditional IRA so it stays tax-deferred, then read the Lump-Sum vs Annuity Guide for the rollover steps and the cash-out tax trap.
If You Take the Lump Sum Before 59½
A cash distribution can carry the 10% early-withdrawal penalty. Confirm whether the rule of 55 or another exception applies with the Early Withdrawal Penalty Calculator, then plan future RMDs with the RMD Calculator.
Disclaimer: This calculator provides estimates for educational purposes only and does not constitute tax, legal, or financial advice. It compares the present value of a single-life monthly pension (discounted at your chosen expected return, with any COLA applied annually) to a lump-sum offer, and reports the break-even return and break-even age. Tax treatment reflects IRS Topic 412, IRS Publication 575, and the IRS rollover rules. Survivor and joint-and-survivor options, investment risk and sequence-of-returns risk on the lump sum, plan credit risk and PBGC limits, the one-time tax cost of a cash lump sum, and state tax are not modeled. The lump-sum vs pension decision depends on facts beyond the math, including your health, longevity, other assets, and risk tolerance. Consult a qualified tax or financial professional before deciding.