Fixed vs. Fixed-Indexed Annuities: A Plain-English Comparison (2026)

Both a fixed annuity and a fixed-indexed annuity protect your principal from market losses — the difference is how they grow. A fixed annuity pays one interest rate that the insurer guarantees for a set number of years, so you always know exactly what you will earn. A fixed-indexed annuity replaces that guaranteed rate with interest linked to a market index (such as the S&P 500), limited by a cap or participation rate but protected by a 0% floor, so you can earn more in good years and simply earn zero — never a loss — in bad ones.

Put simply: a fixed annuity trades away upside for certainty, and a fixed-indexed annuity trades away certainty for a shot at more growth, without giving up downside protection. Which one fits depends on how much predictability you want, how long you can leave the money alone, and what job the money has in your retirement plan. In this guide we walk through both products in plain English — how they accumulate, how they turn into income, the surrender charges and fees to watch, how they are taxed, and how they stack up against CDs and bonds. This is general education, not individualized advice, and every guarantee described depends on the claims-paying ability of the issuing insurance company.

How a fixed annuity (MYGA) works

A fixed annuity is the most straightforward annuity there is. You hand the insurance company a lump sum, the company credits a guaranteed interest rate, and your money grows tax-deferred until you take it out. The most common flavor sold today is the multi-year guaranteed annuity, or MYGA, which locks in a single rate for a defined term — often three, five, or seven years. If a five-year MYGA guarantees a set rate, that rate applies every year of the term, no matter what happens in the stock market or to interest rates generally.

People often describe a MYGA as "a CD from an insurance company," and the comparison is fair on the surface: both give you a fixed rate for a fixed term. The important differences are what sit underneath. A MYGA grows tax-deferred — you do not pay tax on the interest each year the way you do with a CD — and it is backed by the insurance carrier rather than the FDIC. It also typically carries a surrender period, so it is designed for money you can leave alone for the length of the term.

At the end of the guarantee term, you usually have choices: withdraw the money, renew into a new rate the insurer declares, roll it to another annuity through a tax-free exchange, or begin taking income. Because there is no market link, a fixed annuity is the definition of predictable — the entire appeal is knowing your exact balance at any future date. The trade-off is equally clear: if markets and rates rise sharply during your term, you are locked into the rate you started with.

How a fixed-indexed annuity works

A fixed-indexed annuity (FIA) keeps the two features savers like most about a fixed annuity — principal protection and tax deferral — but changes the growth engine. Instead of a flat guaranteed rate, an FIA credits interest based on the performance of an external market index, most commonly the S&P 500. You are not invested in the index and you do not own any stocks; the index is simply the yardstick the insurer uses to calculate how much interest to credit.

Here is the part that surprises people: because you are not actually in the market, a market crash cannot reduce your balance. That protection comes from the 0% floor. In any period the index rises, you are credited interest (up to a limit we will explain in a moment). In any period the index falls, you are credited zero — not a negative number. Your principal and any interest already credited are locked in and cannot be lost to market declines. This is the single most important thing to understand about an FIA.

Caps, participation rates and spreads

The floor protects your downside, so the insurer limits your upside in exchange. There are three common ways it does that, and a given contract may use one or a combination:

• Cap rate: the maximum interest you can be credited in a period. If your cap is a certain percentage and the index gains more than that, your credit is limited to the cap.
• Participation rate: the share of the index's gain you receive. A participation rate below 100% credits only part of the index's rise; some strategies pair a high participation rate with no cap.
• Spread or margin: an amount subtracted from the index gain before interest is credited, so you receive the index return minus the spread.

These limits are why an FIA will usually not match the full return of the stock market in a strong year — and it is not designed to. The goal of an FIA is a middle path: more growth potential than a fixed rate, with none of the downside of being directly invested. Crucially, caps and participation rates are not fixed forever; insurers can reset them (within contract minimums) for future periods, so the crediting potential you start with can change over time.

Side by side: fixed vs. fixed-indexed vs. immediate

It helps to see the two products next to a third design many retirees weigh at the same time — the immediate annuity (SPIA), which skips accumulation and buys income directly. Here is how the three compare on the features that matter most.

Notice what fixed and fixed-indexed annuities share: both protect principal, both grow tax-deferred, and both are built to accumulate before you turn on income. The immediate annuity is a different tool entirely — you give up the lump sum in exchange for the largest guaranteed paycheck per dollar, starting now. Our companion guide, Annuities Explained: Turning Retirement Savings Into Guaranteed Income, walks through all of the main annuity types if you want the wider view first.

Accumulation vs. income phases

Every deferred annuity — fixed or fixed-indexed — has two chapters, and understanding them clears up most of the confusion around these products.

The accumulation phase is the growing stage. Your money sits in the contract and earns interest: a set rate in a fixed annuity, index-linked crediting in an FIA. Nothing is being paid out to you; the balance is compounding tax-deferred. This phase can last a few years or a couple of decades, depending on your age and plan. The longer the runway, the more the tax deferral and compounding can work in your favor.

The income (or payout) phase is when the contract starts paying you. Historically this meant annuitization — converting your account value into a stream of scheduled payments, often for life. Annuitization typically produces the highest guaranteed payment per dollar, but it is usually irreversible and you generally give up access to the lump sum. Today, many people reach the income phase a different way: through an income rider that lets them take guaranteed lifetime withdrawals while keeping access to any remaining account value. We cover that next.

Income riders and lifetime withdrawal benefits

An income rider — most often a guaranteed lifetime withdrawal benefit (GLWB) — is an optional add-on you can attach to many fixed-indexed annuities (and some fixed annuities) for an annual fee. It solves a real problem: how to get guaranteed income for life without permanently surrendering your money the way traditional annuitization does.

Here is the mechanic in plain terms. The rider tracks a separate benefit base — a bookkeeping figure used only to calculate your future income. That benefit base often grows at a stated rate during the years before you turn income on (sometimes called a "roll-up"). When you are ready, the insurer applies a payout percentage, based on your age, to the benefit base to determine your guaranteed annual withdrawal. Those withdrawals continue for the rest of your life, even if your actual account value eventually runs to zero.

Two points are essential to keep straight. First, the benefit base is not a cash value — you cannot withdraw it as a lump sum or leave it to heirs; it exists only to size your income. Your real, spendable money is the account value, which is separate. Second, the rider costs money, typically an annual percentage of the benefit base charged every year the rider is active, and that fee is deducted whether or not your index crediting was strong. For the right person — someone who wants predictable lifetime income and values keeping access to remaining funds — a GLWB can be worth the cost. For someone focused purely on growth, it may not be. As always, the lifetime-income guarantee is backed by the issuing carrier's claims-paying ability.

Surrender charges, MVA and liquidity

This is the section people wish they had read before buying, so we will be direct. Annuities are long-term contracts, and the insurer protects itself against early exits with surrender charges.

A surrender charge is a penalty applied if you take out more than your allowed free amount during the surrender period — the early years of the contract. Most annuities let you withdraw a free-withdrawal amount each year (commonly up to 10% of the account value) without penalty. Withdraw more than that during the surrender period and the charge applies to the excess. The charge usually starts higher in year one and steps down each year until it reaches zero, at which point the contract is fully liquid. Surrender periods vary widely — often somewhere from a few years up to about ten — and generally, the longer the surrender schedule, the more generous the rate or cap the insurer can offer, because it can count on holding your money longer.

Many contracts — especially MYGAs and FIAs — also include a market value adjustment (MVA) that applies to larger withdrawals during the surrender period. An MVA adjusts the amount you receive based on how interest rates have moved since you bought the contract. In simple terms: if rates have risen since your purchase, an MVA can reduce your withdrawal value; if rates have fallen, it can increase it. The MVA is separate from the surrender charge and typically disappears once the surrender period ends.

What about fees?

One reason fixed and fixed-indexed annuities appeal to cautious savers is that their fee structure is simpler than many people expect. Unlike variable annuities — which layer on mortality-and-expense charges, administrative fees, and underlying fund expenses — a plain fixed annuity or FIA usually has no explicit annual account fee. Instead, the insurer earns its margin through the spread between what it earns on its investments and the rate or index credit it passes to you. That cost is real, but it is built into the rate, cap, or participation rate rather than billed as a separate line item.

The fees that do appear tend to be tied to extras and early exits:

• Rider fees: optional benefits like a GLWB or an enhanced death benefit carry an explicit annual charge, usually a percentage of the benefit base or account value.
• Surrender charges: the early-withdrawal penalties described above — a cost only if you take out more than allowed during the surrender period.
• Market value adjustments: not a fee exactly, but an adjustment that can reduce (or increase) an early withdrawal.

The practical takeaway: with fixed and fixed-indexed annuities, the biggest "cost" is usually the opportunity cost of the caps and limited liquidity, plus any rider fees you choose to add — not a stack of visible annual charges. Always ask for the full fee and charge schedule in writing so nothing is a surprise later.

How annuities are taxed

Taxes are a big part of why people use annuities, so it is worth getting the basics right. The rules differ depending on whether the annuity is non-qualified (bought with after-tax money) or qualified (funded inside an IRA or similar retirement account).

For a non-qualified annuity, three rules matter:

• Tax deferral: your interest or index credits grow without being taxed each year. You owe no tax until you take money out, which lets the balance compound faster than a comparably taxed account.
• LIFO on withdrawals: when you make a withdrawal, the IRS treats it as last-in, first-out. That means the earnings come out first and are taxed as ordinary income, before you reach your original after-tax principal, which comes out tax-free. (Payments under a formal annuitization are handled differently, using an "exclusion ratio" that spreads your principal across each payment.)
• 10% penalty before 59½: withdrawing taxable earnings before age 59½ generally triggers an additional 10% federal tax penalty on those earnings, on top of ordinary income tax — the same idea as early withdrawals from other retirement vehicles.

For a qualified annuity held inside an IRA or other pre-tax retirement account, the account's rules govern. Because the money went in pre-tax, withdrawals are generally fully taxable as ordinary income, and required minimum distribution rules and the same pre-59½ penalty concept apply according to that account type. Note that annuities already grow tax-deferred on their own, so the tax deferral is not the reason to hold one inside an IRA — features like principal protection or lifetime income are.

Annuities vs. CDs and bonds

Fixed and fixed-indexed annuities compete for the same dollars as bank CDs and bonds — the safe, income-minded corner of a portfolio — so it helps to see where each shines.

A few honest distinctions. A CD wins on simplicity and federal deposit insurance, and its yearly-taxed interest is fine for shorter-term money you may need. A MYGA counters with tax deferral and, at times, a competitive rate for money you can leave alone for the term — but its guarantee rests on the insurer, not the FDIC, and early access can trigger surrender charges. Bonds and bond funds offer liquidity and diversification, but their market value moves with interest rates, so "safe" does not mean "no fluctuation" the way it does with a fixed annuity's protected principal. A fixed-indexed annuity sits a step beyond all three: principal protection like a CD or MYGA, but with index-linked upside a fixed instrument cannot offer — in exchange for caps and less liquidity. None of these is universally best; the right mix depends on your time horizon, tax picture, and how much of the money must stay liquid.

What buyers are choosing in 2026

These products are not a niche corner of the market anymore. According to LIMRA, total U.S. retail annuity sales reached a record $464.1 billion in 2025 — up 7% over 2024 and the fifth consecutive record-setting year. Higher interest rates made principal-protected annuities markedly more attractive, and waves of Americans reaching retirement age have been shifting money toward safety and guaranteed income. The two products this guide compares led the pack: fixed-rate deferred annuities (MYGAs) at $165.3 billion and fixed-indexed annuities at $127.9 billion, with immediate income annuities a much smaller slice.

The pattern is telling. Between them, MYGAs and FIAs — the two principal-protected designs — made up well over half of all retail annuity sales in 2025. That is a market voting with its dollars for safety and predictable growth over pure market exposure. It does not mean either product is right for you, but it does show that a lot of retirement savers are choosing exactly the trade-off these products offer.

Who each type fits

There is no universally "better" product — only a better fit for a specific goal. Here is how we think about it when we help clients compare.

A fixed annuity (MYGA) may fit if you…

• Want to know your exact balance and rate for the whole term, with no moving parts.
• Have money you can leave alone for the length of the surrender period.
• Like the CD idea but want tax deferral and are comfortable with insurer backing instead of FDIC insurance.
• Value certainty over the possibility of a higher, market-linked credit.

A fixed-indexed annuity (FIA) may fit if you…

• Want protection from market losses but are willing to accept caps in exchange for more upside potential than a fixed rate.
• Have a longer time horizon so index crediting has years to work.
• Are interested in adding a guaranteed lifetime income rider later and understand the rider fee.
• Can accept that credited interest will vary year to year and that caps or participation rates may reset.

For most people, an annuity of either type is one layer of a retirement plan, not the whole thing. It typically sits alongside Social Security — which pays retired workers an estimated average of about $2,071 per month in January 2026, according to the Social Security Administration — and the rest of your savings. A common approach is to cover essential, must-pay expenses with guaranteed income (Social Security, plus a pension or annuity if needed), and keep the rest of your portfolio flexible for growth, travel, emergencies, and legacy. If Social Security timing is still an open question for you, start with our Social Security guidance, then see how these products work in a plan on our annuities page.

Because TSM Life & Health is an independent agency, we are not tied to a single company or product. We help you compare fixed and fixed-indexed options across financially strong carriers, read the surrender schedules and rider costs together, and decide whether an annuity belongs in your plan at all. Everything starts with education, not a sales pitch.

Frequently asked questions

Written by

Keith McLiverty

Keith is the founder and COO of TSM Life & Health, with more than 30 years in finance, taxes, medical insurance and retirement planning. He believes in educating first and planning second, so every client understands the "why" behind their coverage. This article is general education, not individualized insurance, tax or investment advice.

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