Annuity Education

What Is a Fixed Indexed Annuity (FIA)?

Market-linked upside with a guaranteed floor. Your principal is 100% protected — you participate in gains, never in losses.

What Is a Fixed Indexed Annuity?

A Fixed Indexed Annuity (FIA) is a fixed annuity that credits interest based on the performance of a market index — most commonly the S&P 500. Unlike a direct stock investment, your principal is 100% protected: if the index goes down, you earn 0% for that period but never lose a penny of principal. If the index goes up, you earn a portion of the gain, subject to a cap, participation rate, or spread.

FIAs are designed for savers who want some exposure to market upside without taking on market risk. They're popular with pre-retirees and retirees who have a 7–10 year horizon and want growth potential paired with a guaranteed floor.

0% Floor

Your principal is fully protected. In a down market, you earn 0% — never a loss.

Market-Linked Upside

Earn a portion of index gains in up years, capped by the contract terms.

Tax-Deferred Growth

Interest compounds tax-free until withdrawal. No annual 1099.

How an FIA Credits Interest

An FIA uses three main mechanisms to determine how much of the index gain you receive:

Participation Rate

The percentage of the index gain you receive. A 60% rate on a 12% index gain = 7.2% credited to you.

Cap Rate

The maximum interest you can earn in a period. A 7% cap on a 15% index gain = 7% credited to you.

Spread / Margin

A flat percentage subtracted from the index gain. A 3% spread on a 12% gain = 9% credited to you.

Optional Growth Riders — More Upside, With a Trade-Off

Some FIAs offer an optional growth rider (sometimes called an "enhanced" or "boost" rider) that increases your participation rate or cap — letting you capture more of the index's gains. In exchange, the rider carries an annual fee (typically 0.40%–1.00%) that is deducted from your account value each year.

The Upside

A higher participation rate or cap means you capture more of the index's gains. In strong market years, the rider can pay for itself many times over — and your principal is still protected from market losses.

The Trade-Off

The annual fee is charged even in years the index is flat or down. Over time, those fees can reduce your account value below what you paid in — meaning you can technically lose money with a rider, even though you're still protected from market downturns.

Example: A $200,000 FIA with a 0.75% growth rider pays $1,500/year in fees. If the index is flat for several years, those fees reduce your balance — but if the index gains 15%, your enhanced participation rate may credit you 9%+ instead of 6%, far outweighing the fee.

Pros of an FIA

  • Zero downside risk — principal fully protected
  • Potential to out-earn a MYGA in strong market years
  • Tax-deferred growth
  • Optional lifetime income riders available
  • Gains locked in annually — can't be lost to future drops

Things to Consider

  • –More complex than a MYGA — caps and participation rates limit upside
  • –Caps/rates can change at renewal
  • –Income riders carry an annual fee (0.95%–1.50%)
  • –Harder to compare apples-to-apples across carriers
  • –Surrender periods of 7–10+ years

Example

You buy a $200,000 FIA linked to the S&P 500 with a 60% participation rate. If the S&P gains 12%, you earn 7.2% ($14,400). If the S&P drops 20%, you earn 0% — keeping your full $200,000.

FIA vs MYGA: Which Is Right for You?

FeatureFIAMYGA
Rate TypeIndex-linked (0% floor)Fixed guaranteed
Upside PotentialCapped participation in gainsNo upside beyond fixed rate
Downside RiskNone — 0% floorNone — fixed rate
ComplexityMedium–HighLow
Typical Term7–10+ years3–7 years
Best ForGrowth with protectionPredictable guaranteed returns

Frequently Asked Questions

Want to learn if an FIA is right for you?

Ask Anna — our AI annuity advisor — or compare current fixed annuity rates from A-rated carriers.

Educational Disclaimer: This page is for informational purposes only and does not constitute financial, tax, or legal advice. All guarantees are backed by the issuing carrier. Not FDIC insured. Not available in CA or NY.

Get today's best defined outcome rates in your inbox.