Fixed vs Fixed Indexed: What’s Actually Different
A fixed annuity pays a single declared interest rate the insurer sets in advance, so you know your exact return. A fixed indexed annuity ties your interest to a market index with a zero floor, so a good year can pay more and a bad year pays zero. One word, indexed, swaps a guaranteed flat rate for capped, market-linked upside.
These two products are named so similarly that people mix them up daily, and the difference hides in a single word: indexed. Think of two job offers. The first is a fixed salary. Every year you earn the same known number, no more and no less, and you can plan your life around it to the dollar. The second is a base salary plus a bonus tied to how the company performs, with one unusual promise: your base can never be cut. In a great year the bonus lifts you above the flat-salary worker. In a rough year you earn your base and nothing extra, but you never take a pay cut.
The fixed annuity is the fixed salary. The fixed indexed annuity is the base-plus-capped-bonus job that can never cut your pay. That is the whole story in one sentence, and the rest of this guide shows you exactly where the difference lives, so you can tell which one you are actually being offered.
What is the one-word difference between a fixed and fixed indexed annuity?
The difference is how interest is credited: a fixed annuity uses a declared rate, and a fixed indexed annuity uses index-linked crediting with a floor. Everything else the two share.
- Both protect your principal from market losses.
- Both grow tax deferred in a non-qualified contract.
- Both are backed by the claims-paying ability of the issuing insurer rather than FDIC insurance.
- Both lock your money up during a surrender period.
The single lever that changes is the growth engine.
One is a number. The other is a rule for producing a number.
How does each annuity credit interest?
A fixed annuity credits a flat declared rate every year, while a fixed indexed annuity credits a share of a market index’s gain and zero when the index falls. Here is each mechanic in plain terms.
Fixed annuity (declared rate): the insurer declares a rate, and your account grows by that exact percentage for the guaranteed term. If your five-year contract carries the declared rate, you earn it every year of those five years regardless of what the market does. No better in a boom, no worse in a bust. You can see current declared rates on our dated MYGA rate page.
Fixed indexed annuity (index-linked crediting): the insurer measures a market index, most often the S&P 500 price return, over a period. It then applies a limiting factor and credits the result.
Cap
Sets the maximum credited. A 10 percent cap on a 15 percent index year credits 10 percent.
Read more
Participation rate
Credits a share of the gain. A 50 percent rate on a 15 percent year credits 7.5 percent.
Read more
Floor
In a down year, the floor credits zero. Your balance does not fall from the market.
The trade cuts both ways. Current index caps live on our dated fixed index rate page. The trade is symmetrical to the fixed salary analogy: the fixed indexed contract can beat the declared rate in a strong market and can trail it in a flat market, since a flat or slightly down index year credits zero while the fixed annuity still pays its rate.
Declared rate vs cap rate: reading the two key numbers
The declared rate and the cap rate are the two numbers that decide your growth, and they are not the same kind of promise. A declared rate is what you will earn. A cap rate is the most you could earn. Confusing the two is the most common mistake shoppers make.
| Fixed annuity | Fixed indexed annuity | |
|---|---|---|
| The headline number | Declared rate | Cap rate (or participation rate) |
| What it means | Exactly what you earn each year | The maximum you could earn in a strong year |
| In a strong market year | You earn the declared rate | You earn up to the cap, often more than the declared rate |
| In a flat or down market year | You earn the declared rate | You earn zero for that period |
| Can the insurer change it? | No, locked for the term | Often yes, resettable each period above a stated minimum |
| Certainty | Complete | You know the floor and the cap, not the outcome |
Never compare a declared rate to a cap rate as if they were the same. A declared rate is a floor and a ceiling at once. A cap rate is only a ceiling, and the floor beneath it is zero.
A declared rate is what you will earn. A cap rate is the most you might. They are not the same promise.
The AnnuaLife Team
Is a fixed indexed annuity a MYGA?
No. A MYGA (multi-year guaranteed annuity) is a type of fixed annuity that locks a single declared rate for a set number of years, while a fixed indexed annuity uses index-linked crediting instead of a declared rate. People conflate them because both protect principal and both are “fixed” in the sense of no market risk to principal, but the growth engines are different.
Choose a MYGA
Choose a fixed indexed annuity
Choose neither
Fixed vs fixed indexed annuity at a glance
| Feature | Fixed annuity / MYGA | Fixed indexed annuity |
|---|---|---|
| How it grows | Declared rate, set in advance | Index-linked crediting with a cap or participation rate |
| Your return | Known and identical every year | Varies; up to the cap in good years, zero in down years |
| Market risk to principal | None | None from the market |
| Floor in a down year | You still earn the declared rate | You earn zero, principal protected |
| Upside in a strong year | Capped at the declared rate | Higher potential, up to the cap |
| Rate changes | Locked for the term | Cap or participation rate often resets each period |
| Complexity | Low | Moderate; you must read the crediting method |
| Insurance backing | Claims-paying ability of the carrier, not FDIC | Same |
| Best for | Guaranteed, predictable growth | Protected growth with market-linked upside |
Who does each annuity fit?
A fixed annuity fits savers who want a guaranteed, predictable number, and a fixed indexed annuity fits savers who will trade that certainty for capped market-linked upside with a floor. Both suit money you can leave alone for the term.
A fixed annuity or MYGA tends to fit you if:
- You want to know your exact return in advance and plan around it.
- You value simplicity and a locked rate over any chance of more.
- You are comparing against a CD and want a guaranteed number from an insurer.
A fixed indexed annuity tends to fit you if:
- You want protected principal but are willing to accept a variable, capped return for more upside.
- You believe markets will generally rise over your holding period and want to share in that without risking principal.
- You want the option of adding a lifetime income rider later.
Both live in the same protected family, so the decision is really about temperament: do you want a guaranteed number, or a protected shot at a bigger one? See dated fixed index rates and MYGA rates side by side, or browse fixed index products to see real contracts.
How soon are you retiring?
Moving forward
Return to the two job offers. The fixed salary is the fixed annuity: a known number you can plan your life around, never higher, never lower. The base-plus-bonus job that can never cut your pay is the fixed indexed annuity: your floor is protected, your good years can pay more, and your flat years pay zero extra. Same protected principal, two different growth engines, one word between them.
Which engine fits depends on whether you value certainty or protected upside more, and on the exact caps and declared rates available the week you shop, which move constantly. The honest next step is to price both on your real numbers with someone required to show you both sides and disclose how they get paid. That is why AnnuaLife matches people with a Certified Annuity Advisor who can put a real declared rate next to a real cap rate before you decide.
Want a straight answer from a real person?