Retirement & Annuities
By Steven Lapa | Licensed Insurance Broker · October 7, 2026
A CD is a bank deposit; a fixed indexed annuity is an insurance contract. Compare FDIC insurance, carrier guarantees, interest crediting, liquidity, taxes, and income options.
A certificate of deposit (CD) and a fixed indexed annuity (FIA) are different products that serve different purposes. A CD is a bank deposit product with a fixed interest rate and a set maturity, backed by FDIC insurance within applicable limits when held at an insured institution. An FIA is an insurance contract that credits interest linked to a market index, backed by the issuing insurance carrier’s general account and claims-paying ability. FDIC insurance and an insurance company’s guarantees are not the same thing, and neither product is universally safer or higher-earning than the other. The right choice depends on your goals, time horizon, and liquidity needs.
A CD is a time deposit offered by banks and credit unions. You deposit money for a fixed term, and the institution pays a stated interest rate until maturity. At maturity, you receive your principal plus accrued interest.
An FIA is an insurance contract between you and an insurance carrier. You pay a premium, and the carrier credits interest based on the change in a market index over each crediting period, subject to a formula that may include a cap, participation rate, or spread. Your premium is not directly invested in the index.
For a deeper explanation, see What Is a Fixed Indexed Annuity and How Does It Work?
| Feature | Certificate of deposit | Fixed indexed annuity |
|---|---|---|
| What it is | Bank deposit product | Insurance contract |
| How interest is earned | Fixed stated rate for the term | Index-linked credit, limited by cap, participation rate, or spread |
| Backed by | FDIC insurance within limits (at insured institutions) | Issuing carrier’s claims-paying ability |
| Tax treatment | Interest generally taxable yearly | Tax-deferred until withdrawn |
| Liquidity | Early-withdrawal penalty before maturity | Free-withdrawal amount; surrender charges beyond it during the surrender period |
| Lifetime income option | No | Often available, through annuitization or a rider |
| Time horizon | Short to medium | Long |
This is the most important distinction. FDIC insurance protects bank depositors against bank failure, up to applicable limits, and is backed by the full faith and credit of the U.S. government for insured deposits. An FIA’s guarantees, including any principal-protection feature, are backed by the issuing insurance carrier’s general account and claims-paying ability. If the carrier fails, state guaranty associations may provide limited coverage, but coverage caps and terms vary by state and are not the same as FDIC insurance.
FDIC insurance and an insurance company’s guarantees are not the same thing, and one does not substitute for the other.
A CD’s rate is fixed and known for the term. An FIA’s index-linked credit varies each crediting period and is limited by the contract’s cap, participation rate, or spread. In a strong index year the FIA may credit more than a CD; in a flat or capped year it may credit less. An FIA is designed so that a negative index result does not directly reduce contract value through index losses, but surrender charges, market value adjustments, rider charges, and taxes can still reduce what you receive.
A CD ties up money until maturity, with an early-withdrawal penalty if you exit early. An FIA typically allows a free withdrawal of around 10% of contract value per year during the surrender period, with surrender charges (and possibly a market value adjustment) on larger withdrawals. Neither offers unrestricted access to all funds at all times.
CD interest is generally taxable in the year earned, even if reinvested. FIA growth is tax-deferred: you pay taxes only when you withdraw or receive payments, and the earnings portion is generally taxed as ordinary income. Withdrawals before age 59½ may trigger an additional 10% federal tax. This is educational information, not individualized tax advice.
They are protected differently, not on the same scale. A CD at an insured bank is backed by FDIC insurance within limits; an FIA is backed by the issuing carrier’s claims-paying ability. Neither is universally safer.
No. Index-linked credits vary by period and are limited by caps, participation rates, or spreads. In some periods a CD may pay more.
A CD can be held inside an IRA. An FIA can also be purchased inside an IRA as a qualified annuity. For the rollover mechanics, see Can You Roll a 401(k) Into an Annuity? and our Fixed Indexed Annuities service page.
Sources: FDIC: Deposit Insurance; NAIC: Annuities (consumer); FINRA: Annuities; Investor.gov (SEC): Annuities.
Educational information only, not individualized investment, tax, or legal advice. Annuity guarantees depend on the issuing carrier’s claims-paying ability. FDIC insurance applies only to deposits at insured institutions and within applicable limits. Contract terms vary by product and state.