COLA vs Non-COLA Pension: $400/mo Now or Inflation Hedge

The decision, resolved with numbers

Margaret, 62, single, retiring from a county hospital system in Ohio, has two pension options on the same form. Option A: a flat $3,400/month for life, no adjustments. Option B: $3,000/month that increases 3% every year. Same plan, same lifetime, same beneficiary rules — the only difference is whether the check grows. Option A pays $400/month more today. Option B starts $4,800/year lighter but never stops climbing.

Her instinct — and most people’s — is to grab the bigger number. $3,400 beats $3,000. But that compares year one to year one. Over a retirement that could run 30 years, the right comparison is total dollars received and total purchasing power kept. Run that, and the flat check wins for the first decade, then loses for the next two.

Margaret is healthy, has longevity in her family, and her Social Security benefit covers only her housing and groceries. For her, the answer is Option B, the COLA option. Here is the math that gets you there, and the three factors that would flip it the other way.

Two crossover points, not one

The mistake is treating “when does the COLA option catch up?” as a single year. There are two distinct crossovers, and confusing them is how people talk past each other on retirement forums.

1. Monthly crossover (year 6). The $3,000 check growing 3% passes $3,400 partway through year 6 (it reaches roughly $3,478). From that point on, the COLA option writes a bigger check every single month.
2. Cumulative crossover (year 10). But the flat option banked an extra $400/month for years 1–5, so total dollars received still favor it until about year 10. By the end of year 10, cumulative payouts are $412,700 (COLA) vs $408,000 (flat) — the COLA option finally pulls ahead and never looks back.

If you die at year 8, the flat option paid you more. If you live to year 25, the COLA option paid you far more. The election is, in plain terms, a longevity bet.

The year-by-year math at 3%

Here is the full comparison, $3,400 flat vs $3,000 growing 3% annually, showing both the monthly check and cumulative dollars received through each year. The 3% growth assumption matches the long-run U.S. CPI inflation target and the kind of cost-of-living adjustment a 3% COLA pension delivers.

By year 20, the COLA option has paid Margaret $151,000 more in total dollars — and is writing a $5,261 check while the flat option is still stuck at $3,400. By year 25 the gap is nearly $293,000. The longer she lives, the wider it gets. That is the asymmetry: the flat option’s lead is small and capped, the COLA option’s lead is large and growing.

The purchasing-power story is worse than the dollar story

The table above counts nominal dollars. But $3,400 in year 20 does not buy what $3,400 buys today. At 3% inflation, here is what the flat check is actually worth in today’s money:

A 62-year-old who lives to 82 watches a flat $3,400 pension lose nearly half its buying power. The COLA option holds its real value flat by design — that is the whole point of the 3% raise. So the COLA option isn’t just paying more nominal dollars after year 10; it is paying dollars that still buy groceries.

What most people get wrong: this is not lump-sum vs annuity

People conflate two completely different pension decisions. Lump-sum vs annuity asks whether to take a pile of cash now and invest it yourself, or take a monthly check from the plan — that turns on the plan’s implied discount rate and your appetite to manage money. COLA vs non-COLA only comes up after you’ve already decided to take the monthly annuity. It asks how that monthly check behaves over time. Don’t answer the second question until you’ve settled the first.

The second myth: “the plan is trying to rip me off with the lower number.” It isn’t. Both options are designed to be roughly actuarially equivalent for the average retiree at the average life expectancy. The plan isn’t betting against you — it’s offering a fair trade and letting you pick which risk you’d rather hold: longevity-plus-inflation risk (you bear it with the flat option) or a lower starting income (you accept it with the COLA option). The deal is fair on average. Your job is to figure out where you sit relative to average.

How Social Security changes the calculus

Social Security is itself a COLA’d income stream — benefits adjust annually based on CPI-W (ssa.gov/cola). That matters enormously for this decision, because it means most retirees already hold one inflation hedge. The question becomes: what share of your total income does the pension represent?

• If Social Security is your largest income source and the pension is a top-up, a flat pension is more tolerable — your core spending is already inflation-protected. Full retirement age is 67 for anyone born in 1960 or later (Social Security Act § 216(l)), and delaying past FRA earns +8%/year in delayed retirement credits up to age 70, which boosts that COLA’d base further.
• If the pension is your largest income source and Social Security is modest, an unindexed pension is the dominant inflation risk in your whole plan. That argues hard for the COLA option — you don’t want your biggest check to be the one that erodes.
• If you’re claiming Social Security early at 62 (with up to a 30% permanent reduction), your COLA’d base is smaller in absolute terms, making the pension’s inflation behavior more important to your standard of living.

Margaret’s Social Security covers only housing and food. Her pension funds everything else — healthcare, travel, gifts, the discretionary spending that makes retirement worth it. That discretionary layer is exactly the spending that inflation eats first, so she needs the pension itself to keep up. COLA option.

The three factors that flip the answer

The COLA option is the default for a healthy early retiree, but three things push toward the flat $3,400 instead:

1. Older age at retirement. A 70-year-old has a shorter runway for the year-10 crossover to pay off. If your realistic life expectancy is under about 12 more years, the flat option likely pays more total dollars before you’re done.
2. Poor health or short family longevity. If you don’t expect to reach the cumulative crossover, take the money now. The flat option front-loads income; the COLA option back-loads it. Take the front-load if you won’t see the back.
3. Heavy existing inflation-protected income. A large Social Security benefit, a second COLA’d pension, or a TIPS-heavy portfolio means you already own inflation protection. Stacking another COLA on top has diminishing value — take the higher flat amount and use the extra $400/month now.

Notice all three pull the same way: shorter horizon or existing protection favors the flat check. Longer horizon and exposed income favors the COLA check.

Don’t forget the survivor election runs alongside this one

On most pension forms, the COLA-vs-flat choice sits next to a separate survivor election: single-life (highest check, stops when you die) versus joint-and-survivor (lower check, continues to a spouse). These two decisions interact and people often blur them together. A 50% joint-and-survivor COLA pension protects against both risks that matter to a couple — a surviving spouse keeps an inflation-adjusted check for the rest of their life, which could extend the income stream another decade past the original retiree’s death.

If you’re married and choosing a survivor option, the case for the COLA feature gets stronger, not weaker, because the combined two-life horizon is longer than either single life. The cumulative crossover that arrives around year 10 is almost certain to be reached when two lifespans are stacked. If you’re single, like Margaret, the survivor election is moot and the decision collapses back to the pure COLA-vs-flat longevity bet covered above. Settle the survivor question first; then apply the same crossover logic to the check itself.

One trap: don’t let a tight monthly budget push you into single-life-flat (the biggest possible check today) without pricing the two risks you’re shedding. The largest nominal number on the form is almost always the option that strips out both inflation protection and survivor protection — it looks generous precisely because it removes the two features that cost the most to provide.

If you take the flat pension, your portfolio has to do the work

Choosing the flat $3,400 isn’t wrong — but it transfers the inflation job to the rest of your plan. Someone who takes the flat option needs growth assets sized to make up the eroding real value over time. That’s a deliberate allocation decision: hold enough equities and inflation-sensitive assets that your portfolio’s growth can supplement the fixed check in your 70s and 80s. A retiree who takes the flat pension and then sits in cash and bonds has the worst of both worlds — a fixed income floor and a portfolio that also can’t outrun inflation.

If you take the COLA option, the reverse is true: your income floor is inflation-protected, so your portfolio can carry more risk or more reserve without inflation pressure on the income side.

The decision lever

Set the question correctly and the answer falls out: do you expect to live past the cumulative crossover (about year 10), and is your pension exposed to inflation because it’s a large share of unindexed income? If yes to both — you’re a healthy early retiree leaning on this pension — take the lower COLA option and accept the $400/month haircut now for 3% raises that compound for 25 years. If you’re older, in poor health, or already sitting on a thick layer of COLA’d income, take the flat $3,400 and put the extra to work today. Run your own numbers at the inflation rate you actually expect: at 4% the crossover arrives by year 8–9; at 2% it slips past year 12. The crossover year, not the bigger headline number, is the decision.