Should you choose a fixed index annuity or a RILA?
If you can't stomach any loss of principal, choose the FIA. Its floor is zero, full stop. If you can tolerate a real loss in a bad year in exchange for a meaningfully higher cap, a RILA deserves a serious look. Most people with $100,000 to $500,000 earmarked for this decision should ask themselves one question first: how much of a hit could this specific chunk of money take in a genuinely bad year without changing your retirement plan? The honest answer usually points you straight to one product or the other.
What is a fixed index annuity?
A fixed index annuity is an insurance contract that credits interest tied to a market index, commonly the S&P 500, while guaranteeing your principal can never drop because of a market decline. When the index has a bad year, your account value simply holds steady. When it rises, you're credited a share of the gain, limited to a cap the carrier sets in your contract.
FIAs answer to state insurance regulators rather than the SEC, and selling one only requires a state insurance license. You never own the index itself, and your premium isn't invested directly in stocks. The carrier uses options strategies to fund the interest it credits, following a formula written into your contract.
The trade-off is easy to describe. Give up part of the market's best years for a hard floor of zero. If the index posts a strong double-digit gain and your cap sits at 6%, you get 6%. If the index falls sharply the same year, you get zero, not a loss. Across a full market cycle, that floor tends to matter more than most buyers expect going in.
If a guaranteed fixed rate interests you more than index-linked crediting, see our fixed annuity vs fixed index annuity comparison.
What is a RILA?
A registered index-linked annuity, sometimes called a buffer annuity or a structured annuity, sits between a fixed index annuity and a variable annuity. Like an FIA, it credits interest tied to a market index. Unlike an FIA, it does not protect all of your principal. You agree to absorb a slice of any market loss in exchange for a meaningfully higher cap.
RILAs use one of two loss-sharing structures:
- Buffer: the carrier absorbs the first stated percentage of a loss. With a 10% buffer, an index drop of 15% costs you 5%, the portion beyond the buffer. A drop of 8% costs you nothing at all.
- Floor: your worst-case loss for the period is capped at a set number, no matter how far the index actually falls. A -10% floor means 10% is the most you can lose in that crediting period.
Because you're sharing in the downside, RILA caps can run well above what a comparable FIA offers on the same index and term.
RILAs are registered securities with the SEC. An agent needs a Series 6 or Series 7 license on top of a state insurance license to sell one, and the paperwork you get is a full prospectus, not the shorter disclosure booklet that comes with an FIA.
FIA vs RILA at a glance
| Feature | Fixed index annuity | RILA (buffer annuity) |
|---|---|---|
| Principal protection | Full; cannot drop from market loss | Partial; set by a buffer or a floor |
| Typical cap range | Lower, single digits on a given index | Higher, often well into the double digits |
| Downside risk | None below zero | Real; losses can begin once the buffer is used up |
| Regulator | State insurance department only | SEC, issued with a prospectus |
| License needed to sell it | State insurance license | Insurance license plus Series 6 or 7 |
| Typical surrender period | Often 5 to 10 years | Often 5 to 7 years |
| Income rider availability | Common on most contracts | Offered on some contracts, less common |
| Tax treatment | Tax-deferred; ordinary income on withdrawal | Same: tax-deferred; ordinary income on withdrawal |
| Fits best | Buyers who want zero downside | Buyers who'll trade some downside for more upside |
A hypothetical example: the same deposit, three outcomes
These figures are hypothetical and only meant to show how the math behaves.
Say a 61-year-old has $180,000 to place from a rollover and is weighing a 6-year FIA with a 5% annual cap against a 6-year RILA with a 12% buffer and a 15% annual cap, both tracking the same index and both starting with the same $180,000.
| Year 1 index return | FIA ending value | RILA ending value |
|---|---|---|
| +20% (strong year) | $189,000 (capped at 5%) | $207,000 (capped at 15%) |
| +4% (modest year) | $187,200 (full 4% credited) | $187,200 (full 4% credited) |
| -22% (bad year) | $180,000 (floor holds at zero) | $162,000 (buffer absorbs the first 12%; the remaining 10% reduces the account) |
The RILA wins clearly in a strong market and ties in a flat one. The FIA wins clearly when the index falls hard. Which product comes out ahead over a full six-to-ten year cycle depends entirely on how often the market has a bad year during that specific stretch, which nobody can predict in advance. That's why this decision is really about how much loss you can tolerate, not about guessing future returns.
How are they taxed?
Both products are tax-deferred annuity contracts, so the tax treatment lines up closely:
- Non-qualified money: gains grow tax-deferred, and withdrawals are taxed as ordinary income on the gain portion, with a 10% IRS penalty on gains taken out before age 59 and a half.
- Qualified money (IRA or old 401(k)): the entire withdrawal counts as ordinary income, and required minimum distributions start at age 73.
Placing either product inside an IRA doesn't add any extra tax benefit, since the IRA already provides deferral on its own. The reason to use one inside an IRA is the protection structure itself, the zero floor of an FIA or the buffered design of a RILA, not the tax wrapper around it.
Liquidity and surrender charges
FIAs and RILAs offer similar access to your money. Both typically allow a penalty-free withdrawal of up to 10% of account value each year. Anything beyond that free amount triggers a surrender charge that starts out high in the first year and shrinks toward nothing as the contract term winds down.
On average, a RILA's schedule wraps up sooner than a typical FIA's does. If a large lump sum might be needed before that schedule runs its course, neither product fits well. Both generally set the charge aside for events like a nursing home stay, a terminal diagnosis, or a required minimum distribution on a qualified account.
Carrier strength matters for both
FIAs and RILAs are both insurance contracts, so your guarantee is only as solid as the company standing behind it. Check a carrier's AM Best rating before you buy either one, and lean toward A- or better.
If a carrier fails, your state's guaranty association steps in to protect annuity values up to a set limit, commonly somewhere between $100,000 and $250,000 per owner per carrier depending on the state. If you're placing more than that limit into either product, splitting the premium across two well-rated carriers keeps you fully inside guaranty coverage at each one.
Who fits a fixed index annuity?
An FIA is the right call if:
- Losing principal in a downturn would seriously derail your retirement plan
- You want to sleep soundly knowing your balance simply can't fall from market moves
- You're within roughly five to ten years of needing this money for income
- You want to protect a specific dollar figure, like a nest egg or an inheritance, from market risk
- You might want to add a lifetime income rider down the road
Who fits a RILA?
A RILA is worth considering if:
- You can absorb a moderate loss in a rough year in exchange for meaningfully higher upside
- You're ten or more years from needing this particular money
- You already have other guaranteed income sources, like Social Security, a pension or MYGAs, and can take some risk here
- You want index participation that feels closer to direct market investing without going fully variable
- You genuinely understand how a buffer or a floor works before you sign
The bottom line
Choosing between an FIA and a RILA is really a question about how much loss you can absorb, not a question about which will perform better. If you can honestly say a 10% hit in a bad year wouldn't rattle you, a RILA's higher cap will likely outpace an FIA across a full market cycle. If that same scenario makes your stomach turn, the FIA is the right home for this money, and that's fine.
If this is the only annuity allocation you're making, the FIA is usually the steadier choice. If you already have a separate growth bucket covering market upside elsewhere, a RILA can be a reasonable way to add a moderate-risk slice on top of it.
Other annuity comparisons to consider
- Fixed index annuity vs variable annuity: where a RILA's risk profile sits between the two
- Fixed index annuity vs mutual fund: principal protection against unlimited upside
- Fixed annuity vs fixed index annuity: a guaranteed rate against index-linked crediting
- RILA guide: how buffers, floors and caps work in more detail
Frequently asked questions
Can you lose principal in a fixed index annuity?
Not from a market decline. An FIA's account value can't drop because the underlying index had a bad stretch; a flat year is the worst outcome tied to the index itself. You can still end up with less than you put in if you surrender early and pay a surrender charge, withdraw beyond your free withdrawal allowance during the surrender window, or carry an optional rider whose fee outpaces a slow year's crediting.
Can you lose principal in a RILA?
Yes, that's the entire trade you're making. A RILA is built to absorb some market risk in exchange for a bigger cap. Under a buffer structure, the carrier eats losses up to a stated percentage and you absorb whatever falls beyond it. Under a floor structure, your maximum possible loss in a crediting period is capped at a set number no matter how far the index drops. Which structure you pick changes exactly how much you can lose.
Where does a RILA sit compared to a variable annuity on risk?
Squarely in the middle. A variable annuity offers no downside protection at all, so your subaccount value can fall as far as the underlying investments fall. A RILA limits that fall with a buffer or a floor. An FIA removes the downside entirely. Think of it as a three-step ladder: FIA, then RILA, then variable annuity, in order of rising risk and rising upside.
Why can RILA caps run so much higher than FIA caps?
Because you're taking on some of the downside yourself, the carrier's hedging costs less. That freed-up budget gets passed through to you as a higher cap or a wider participation rate. It isn't a better deal by accident; the extra upside is compensation for the loss you've agreed to absorb.
Can you move money from a RILA into an FIA later?
Generally yes, through a 1035 exchange, which lets you move funds between two non-qualified annuities without triggering a tax bill. Just check whether the original RILA is still inside its surrender period first, since a surrender charge could apply even though the exchange itself is tax-free. Run the numbers before you sign anything.
Which carriers sell both FIAs and RILAs?
Quite a few of the larger annuity carriers offer both product lines, which makes an apples-to-apples comparison easier when you stick with one insurer. Ask any carrier you're considering whether both are on their shelf; a licensed strategist can pull quotes for both side by side from the same company.
Written and reviewed by
James Forren Warren
Licensed Retirement Income Strategist · License #20551202
James Forren Warren is a licensed Retirement Income Strategist with Tax Free Wealth Plan. For the past five years he has helped individuals and families turn their savings into retirement income they can count on. He writes and reviews the annuity research on this site and keeps it plain: what a product does, what it costs you, and who it actually fits.
Sources
Educational only, not investment, tax or legal advice. Tax Free Wealth Plan LLC is a licensed insurance agency, not a registered investment adviser or broker-dealer. Annuities are not bank deposits, are not FDIC insured and are not guaranteed by any government agency. Guarantees are backed solely by the claims-paying ability of the issuing insurance company. Features, rates and availability vary by state and change over time; the contract and disclosure documents govern.