Registered Index-Linked Annuities (RILAs) Explained
A registered index-linked annuity, usually shortened to RILA and sometimes called a buffer or structured annuity, sits between a fixed-indexed annuity and a variable annuity. It credits interest based on an index, like a fixed-indexed contract, but unlike that contract it does not protect against every index decline. In exchange for accepting a defined band of loss, the owner receives higher crediting limits than a comparable fully protected contract typically offers.
A registered index-linked annuity credits interest tied to an index over a set term, with partial downside protection through a buffer or a floor. Because principal can decline, it is registered as a security and requires a prospectus, and it generally offers higher caps than a fully protected fixed-indexed contract.
Key takeaways
- A RILA can lose value; the protection is partial, not absolute.
- A buffer absorbs the first stated percentage of index loss; a floor caps the maximum loss the owner can take.
- Higher caps or participation rates are the compensation for accepting that defined downside.
- Crediting is measured over a term, often one, three, or six years, not continuously.
- Because principal is at risk, a RILA is a registered security and comes with a prospectus.
What is a registered index-linked annuity?
A RILA is an insurance contract that credits interest based on the performance of a market index over a defined term, with a stated level of downside protection and a stated limit on upside. Principal is not fully protected.
The structure borrows from both sides of the annuity spectrum. Like a fixed-indexed annuity, the owner is not invested in the index and does not receive dividends; crediting is calculated by formula at the end of each term. Unlike a fixed-indexed annuity, the formula can produce a negative result.
Because the contract can lose value, it is registered with securities regulators and delivered with a prospectus. That single fact separates the sales process, the disclosure requirements, and the risk profile from those of a non-registered fixed-indexed contract.
How does a buffer work?
A buffer absorbs the first stated percentage of index loss over a term. If the index falls less than the buffer, no loss is credited; if it falls more, the owner absorbs only the amount beyond the buffer.
With a ten percent buffer, an index decline of eight percent over the term produces no negative crediting. An index decline of twenty-five percent produces negative crediting of fifteen percent, because the buffer absorbed the first ten.
The important structural point is that a buffer protects against small and moderate declines but offers proportionally less protection in a severe decline. The owner's exposure is uncapped on the downside beyond the buffer unless the contract also includes a floor.
How does a floor differ from a buffer?
A floor sets the maximum loss the owner can experience over a term. The owner absorbs index losses up to that limit and is protected beyond it, which is the mirror image of how a buffer allocates risk.
With a ten percent floor, an index decline of eight percent is fully absorbed by the owner. A decline of twenty-five percent still produces negative crediting of only ten percent, because the floor stops the loss there.
A buffer helps most in mild markets; a floor helps most in severe ones. Neither is inherently better, and the two are priced differently. What matters in a review is knowing which structure a contract actually uses, since the marketing language for both is frequently described as downside protection.
- Buffer - carrier absorbs the first stated percentage of loss, owner takes the remainder
- Floor - owner absorbs loss up to a stated percentage, carrier absorbs the remainder
- Term length - crediting is measured at the end of the term, not annually unless the term is annual
- Cap or participation rate - the ceiling on credited gain for the term
How does a RILA compare with a fixed-indexed annuity?
A fixed-indexed annuity credits zero in a down index period and never negative, with lower caps as the trade-off. A RILA accepts partial downside and generally offers a higher cap or participation rate in return.
The comparison comes down to what the owner is willing to accept in a negative index term. Zero-floor crediting is the defining characteristic of a fixed-indexed contract and the reason its caps are lower. A RILA sells part of that protection back to the carrier and receives crediting potential for it.
Both contracts share the same crediting vocabulary - caps, participation rates, spreads, index selection, term lengths - so the terms alone do not distinguish them. The prospectus requirement and the possibility of negative crediting do.
Where a RILA is read in the Annuity Position Score
A registered index-linked contract is reviewed on the same five structural pillars as any other annuity, with particular attention to which protection mechanism applies and how the current term is positioned.
Establishing the position means knowing the buffer or floor level, the current cap or participation rate, the term end date, and the surrender schedule alongside it. The Annuity Position Score is educational and is not a recommendation to buy, sell, surrender, or replace any annuity.
Frequently asked questions
Can you lose money in a RILA?
Yes. A registered index-linked annuity provides partial downside protection only. Index losses beyond a buffer, or within a floor, reduce contract value.
Is a RILA the same as a variable annuity?
No. A variable annuity invests in market subaccounts with no defined protection band. A RILA credits by formula against an index with a stated buffer or floor. Both are registered securities.
What happens if I withdraw during a RILA term?
Withdrawals taken mid-term are typically subject to an interim value calculation as well as any surrender charge, and the amount can differ meaningfully from the contract value shown on a statement.
Do RILAs pay dividends?
No. Crediting is based on index price movement as defined in the contract. The owner does not hold the index and does not receive dividends paid by its constituents.
How long are RILA terms?
One, three, and six-year terms are the most common, though contracts vary. Crediting is calculated at the end of the term based on the index level on the term start and end dates.