MYGA vs. Fixed Indexed Annuity: What’s the Difference?

If you have been researching annuities, you have probably run into two acronyms that sound similar but work differently: MYGA and FIA. Both are issued by insurance companies, both protect your principal from market losses, and both are popular with retirees who want more certainty than the stock market offers. The difference comes down to how the interest is calculated.

What a Multi-Year Guaranteed Annuity (MYGA) does

A MYGA works the way most people expect an annuity to work. You deposit a lump sum, the insurance company locks in a fixed interest rate, and you earn that exact rate every year for a set term, usually three to ten years. There is no index, no market participation, and no mystery. If the contract says 5%, you earn 5%, full stop, for the length of the term.

People compare MYGAs to CDs because the mechanics are similar: a fixed rate for a fixed term. The differences that matter are tax treatment (growth in a MYGA is typically tax-deferred until withdrawal, unlike a CD), the surrender period (you generally cannot withdraw the full amount early without a penalty, similar to a CD's early-withdrawal fee), and who is backing the guarantee (an insurance company's claims-paying ability, not FDIC insurance).

What a Fixed Indexed Annuity (FIA) does

An FIA also protects your principal, but instead of a flat guaranteed rate, your credited interest is linked to the performance of a market index, often the S&P 500, within limits set by the contract (a cap, a participation rate, or a spread). If the index goes up, you can earn a portion of that gain, up to the contract's limit. If the index goes down, you are credited zero for that period, not a loss. You do not lose principal due to market performance, but you also do not capture the full upside of the index.

FIAs are more complex than MYGAs because the caps, participation rates and crediting methods vary a lot by carrier and by contract, and they can change at renewal. That complexity is exactly why reading the actual contract with a licensed advisor matters more here than with a simple fixed-rate product.

Side by side, in plain terms

• Growth mechanism: MYGA = fixed rate, locked in. FIA = linked to an index, with a cap or participation limit.
• Predictability: MYGA is fully predictable for the term. FIA's return varies year to year based on the index and the contract's current terms.
• Upside potential: MYGA has a ceiling equal to its fixed rate. FIA has more upside potential, but it is capped, and in a flat or down market it can credit 0%.
• Simplicity: MYGA is simple to understand and compare. FIA requires reading the specific crediting method on the specific contract.
• Typical use: MYGA often replaces a CD or bond allocation. FIA is often used for a portion of savings someone wants growth potential on, without market-loss risk.

Which one fits your situation?

Neither type is automatically "better." A retiree who wants total certainty and a known number on a statement every year often leans MYGA. A retiree who wants some upside potential tied to the market, without the risk of losing principal in a downturn, often looks at an FIA. Your timeline, your other savings, your need for liquidity and your comfort with complexity should all factor in, which is why we connect you with a licensed advisor instead of trying to steer you into one or the other from a web page.

A straight note on surrender charges and liquidity

Both MYGAs and FIAs typically limit how much you can withdraw in the early years without a surrender charge, often allowing a penalty-free amount (commonly around 10% per year) while restricting the rest. Neither product should be funded with money you expect to need in full during the surrender period. A licensed advisor should walk through your specific contract's surrender schedule before you sign anything.