Annuity: what you're buying when you trade a lump sum for a paycheck

An annuity is a contract with an insurance company: you hand over money — a lump sum or a series of payments — and the insurer promises to pay you an income, often for the rest of your life. That's it. The concept is ancient and genuinely useful: it's insurance against outliving your money. The complexity, the fees, and the steak-dinner sales seminars were all added later, and knowing which annuity is which is the entire game.

The core trade

No investment can guarantee income for a lifespan you don't know in advance — but an insurer pooling thousands of customers can. People who die early subsidize people who live long; the insurer prices the pool and takes a margin. If longevity in your family runs deep, an annuity is a bet you're positioned to win. That pooling is the honest magic at the center of every annuity, no matter how baroque the wrapper.

The family tree

• Immediate annuity (SPIA) — pay a lump sum, income starts next month, guaranteed for life. Simple, transparent, cheap. The one economists actually like.
• Deferred income annuity — same idea, but income starts years from now. Buying at 65 with income starting at 80 is pure longevity insurance, and surprisingly cheap because many buyers won't collect long.
• Fixed annuity — a CD-like contract paying a guaranteed rate for a term. Boring, comprehensible.
• Variable annuity — your money rides in investment subaccounts, wrapped in insurance. Frequently carries 2–3%+ in combined annual fees plus surrender charges. The commission-heavy problem child.
• Fixed indexed annuity — returns 'linked' to a market index, with caps and participation rates that keep most of the upside. The star of dinner seminars, and the hardest to evaluate honestly.

Where the fees hide

• Surrender charges — exit fees, often starting at 7–10% and declining over 7–10 years. A rough proxy for the commission the seller earned.
• Mortality & expense (M&E) fees — typically ~1.25%/year on variable annuities, on top of fund fees.
• Rider fees — income guarantees, death benefits, inflation adjustments: 0.5–1.5%/year each.
• Caps and participation rates — indexed annuities might credit you only 50% of index gains, capped at 8%, with dividends excluded. The index in the brochure is not the return in your contract.
• Rule of thumb: a simple SPIA has essentially no visible fees (the margin is inside the payout rate); the more moving parts a contract has, the more of your return is funding them.

Who should actually consider one

1. Retirees whose essential expenses exceed Social Security: a SPIA covering the gap creates a guaranteed floor no market crash can touch.
2. Healthy people with long-lived families — longevity is the bet the product pays.
3. People who reliably overspend flexible money: converting a chunk into an un-raidable paycheck is behavioral armor.
4. Skip or scrutinize: anyone still working and investing (just buy index funds), anyone offered a variable/indexed product they can't explain after two readings, and anyone told an annuity 'has no fees.'
5. If you buy: compare quotes from several insurers (payouts vary 5–15%), check the insurer's ratings, and stay within your state guaranty association's coverage limit — commonly around $250,000.

The family tree, priced honestly

The table's complexity column is not a joke — it is the underwriting-in-reverse principle that governs this entire product category: the harder a contract is to understand, the more of its value typically flows to the people selling it. Commissions tell the same story. A SPIA might pay the agent 1-3% once; variable and indexed contracts commonly pay 5-8% upfront, which is why one gets a brochure and the other gets a free steak. None of this makes the salesperson evil or the buyer stupid; it makes the incentive structure worth reading before the contract. The practical filter: if you cannot explain the crediting formula, the surrender schedule, and every rider fee to another adult after two readings, you are not buying an income — you are buying a story about one.

For the right buyer, though, the boring version solves a problem nothing else solves. Consider a 67-year-old with $600,000 saved, $2,200/month of Social Security, and $4,500/month of essential expenses. Annuitizing $200,000 into a $1,300/month SPIA closes the essentials gap permanently: no market crash, no sequence-of-returns disaster, no cognitive-decline mistake at 85 can unpay the electric bill. The remaining $400,000 stays invested for growth, inflation, and heirs. That floor-and-upside structure — guarantee the needs, invest the wants — is what retirement researchers keep landing on, and the annuity is simply the only retail product that manufactures the floor.

The bottom line

An annuity converts money into a lifetime paycheck — a genuinely valuable trade for covering essential expenses you can't afford to leave to market luck. The simple versions (SPIA, deferred income) do this cheaply and honestly. The complicated versions mostly convert your money into the seller's paycheck first. Buy the boring one, only for the job it's built for, and never at a dinner seminar.