- A buffer annuity — sold as a registered index-linked annuity, or RILA — absorbs an initial slice of index loss and passes everything beyond it to you.
- A buffer is not a floor. A 10% buffer on a 30% decline means you absorb 20%; a 10% floor on the same decline means you absorb 10%.
- Buffers buy meaningfully higher caps than a fixed indexed annuity offers, because you are carrying real downside risk.
- RILAs are securities. They require a prospectus and a securities-licensed seller, unlike fixed indexed annuities.
- Segment terms lock your money to specific measurement dates — mid-term exits are valued by formula, not by the buffer.
Sitting between the fixed indexed annuity, which never loses to the index, and the variable annuity, which loses everything the market loses, is a third structure that splits the difference on purpose. It is sold under several names — buffer annuity, structured annuity, indexed variable annuity — and its regulatory name is a registered index-linked annuity, or RILA.
The idea is simple and the arithmetic is where people get hurt.
How a buffer works
You pick an index, a segment term (commonly one, three, or six years), and a buffer — 10%, 15%, 20%, sometimes 30%. At the end of the term the insurer measures the index against where it started.
If the index is up, you are credited the gain up to a cap, and RILA caps are materially higher than fixed indexed annuity caps because you are carrying real risk.
If the index is down within the buffer, you lose nothing. A 10% buffer absorbs a 7% decline completely.
If the index is down beyond the buffer, the insurer absorbs the buffer amount and you absorb the rest. A 10% buffer against a 25% decline means the insurer eats 10 and you eat 15.
The distinction that matters most
A buffer is not a floor, and the two words get used loosely by people who should know better.
| Index falls | 10% buffer — you lose | 10% floor — you lose |
|---|---|---|
| −5% | 0% | 5% |
| −10% | 0% | 10% |
| −20% | 10% | 10% |
| −35% | 25% | 10% |
| −50% | 40% | 10% |
A buffer protects the shallow declines and leaves you exposed to the deep ones. A floor does the opposite — it costs you in ordinary down years and protects you in a crash. They are mirror images, and which one you hold decides everything about how the contract behaves in the year you most need to know.
Buffers are far more common than floors, and they are the structure that looks best in a brochure and worst in 2008.
Why the caps are higher
Same options-budget logic as the fixed indexed annuity, with more money to spend. The insurer funds a RILA segment by selling downside exposure beyond the buffer — exposure you agreed to take — and the proceeds buy more upside. Your acceptance of tail risk is what pays for the cap.
Which means the comparison "RILA caps are higher than FIA caps, so RILAs are better" is not a comparison at all. It is a description of the price of risk you have agreed to carry.
The segment mechanics people miss
Only the endpoints matter. Performance is measured start of segment to end of segment. A six-year segment that finishes flat credits nothing regardless of what happened in between, including a 60% rally in year three.
Mid-segment exits are valued by formula. If you withdraw before the term ends, you receive an interim value derived from marking the underlying derivatives to market — not the buffer, and not the index level. It can be lower than the index alone would suggest. Surrender charges apply on top. RILA money must be money you can leave alone until the segment matures.
Renewal is a decision. At segment end you choose again, and the caps and buffers available then are the ones that exist then. A rich cap today does not carry into the next term.
These are securities, and that changes things
Unlike a fixed indexed annuity, a RILA is a registered security. It requires a prospectus, and the person selling it needs securities registration in addition to an insurance licence. Two consequences worth using:
The prospectus states the fees, the caps, the buffer mechanics, and the interim value formula without a sales layer — find it on SEC EDGAR and read the interim value section specifically. And you can check the seller in FINRA BrokerCheck, which is meaningful here in a way it is not for fixed products, where the agent will not appear at all.
Where a RILA fits
The genuine case: someone who wants equity-linked growth, can tolerate a real loss in a severe market, has a horizon matching the segment term, and finds fixed indexed annuity caps too restrictive to be worth the lockup. For that person a buffer is a rational middle position, and the higher cap is honestly earned.
Where it does not fit: anyone who cannot accept a loss — the buffer will not save you in a crash and the product was not built to. Anyone who might need the money mid-segment. Anyone comparing it to a fixed indexed annuity on cap alone. And anyone who was told it is "protected," a word that does a great deal of work in this category and means something much narrower than it sounds.
The three scenarios to run before you buy
Ask the seller to show you the contract's outcome in a year the index rises 25%, a year it falls 12%, and a year it falls 40%. The first shows what the cap costs you. The second shows the buffer working as advertised. The third is the one that decides whether you should own it, and it is the one illustrations tend to leave out.
Frequently asked
Comparing a RILA against a fixed indexed annuity?
They are frequently pitched interchangeably and they carry completely different downside. Send both illustrations and we will model the same index scenarios through each so you can see where the buffer earns its cap and where it costs you.
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