Pension vs 401(k) Comparison Calculator

Pension Break-Even Analysis

The break-even age is when cumulative pension payments equal what the lump sum would have been worth. Past this age, the pension produces more total income.

Example: $3,000/month pension vs. $500,000 lump sum invested at 6% with 4% annual withdrawals ($20,000/year)

| Year | Pension Cumulative | 401(k) Value (after withdrawals) | |------|-------------------|--------------------------------| | 5 | $180,000 | $669,000 | | 10 | $360,000 | $895,000 | | 15 | $540,000 | $1,197,000 | | 20 | $720,000 | $1,601,000 | | 25 | $900,000 | $2,143,000 | | 30 | $1,080,000 | $2,867,000 |

In this scenario the 401(k) never falls behind in portfolio value — but if investment returns disappoint (say 3% instead of 6%), the calculus shifts significantly in the pension's favor.

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The Hidden Factor: Implied Rate of Return

Your pension's "implied return" is the discount rate that makes the lump sum equivalent to the pension payments in present value terms. If the implied return is 4% and you can reliably earn 7% in a diversified portfolio, the lump sum is likely better. If the implied return is 7%+ and you're a conservative investor, the pension may be the better deal.

Request the actuarial calculation from your plan administrator or use an annuity valuation formula to find this number before deciding.

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Survivor Benefit Options

Most defined benefit pensions offer survivorship elections at retirement:

| Election | Your Monthly Benefit | Spouse's Benefit After Your Death | |----------|---------------------|----------------------------------| | Single-life annuity | Highest | $0 (pension stops) | | Joint & 50% survivor | ~10–15% lower | 50% of your benefit | | Joint & 100% survivor | ~15–20% lower | 100% of your benefit |

Choosing single-life to maximize your payment while expecting to leave a spouse without income is a common and costly mistake. The reduction for survivor coverage is essentially a life insurance premium — often worth it.

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Pension vs. 401(k): Tax Treatment

Both pension payments and 401(k) withdrawals are taxed as ordinary income in retirement. However:

• 401(k): You control the timing and amount of withdrawals (subject to RMDs at 73/75). You can pull more in low-income years and less in high-income years.
• Pension: Fixed monthly payments — no flexibility to time income strategically. This can push you into higher brackets than necessary.

A 401(k) (or IRA) gives you Roth conversion flexibility; a pension does not.

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When the Pension Wins

• You're in excellent health with a family history of longevity (90+)
• You have no investment experience or prefer guaranteed income
• Your pension includes cost-of-living adjustments (COLA)
• Your spouse will need survivor income and the lump sum isn't large enough to self-insure

When the 401(k)/Lump Sum Wins

• You want to leave wealth to heirs (pensions generally die with the annuitant)
• You have other guaranteed income (Social Security, another pension)
• The implied return of the pension is below what you expect from investments
• You have health concerns suggesting shorter-than-average life expectancy
• You want withdrawal flexibility to manage your tax bracket in retirement