What Is an Annuity? A Complete Guide to How Annuities Work
An annuity is a contract with an insurance company. You pay a lump sum or a series of premiums, and the insurer agrees to provide income immediately or at a future date under the contract’s terms. Some annuities can provide income for life, but fees, surrender restrictions, investment risks, tax rules, and insurer guarantees vary by product.
Key Takeaways
- Annuities can help provide retirement income, including lifetime income under certain contracts.
- Fixed, variable, fixed indexed, and registered index-linked annuities offer different features and risks.
- Tax treatment depends on the account type, contributions, and how you take money out.
- Review fees, surrender charges, withdrawal restrictions, and the insurer’s financial strength before purchasing.
What Is an Annuity?
An annuity is an insurance contract designed to help you accumulate money for future needs, turn savings into retirement income, or accomplish both goals. You pay the insurance company a single premium or make payments over time. In return, the insurer provides benefits according to the terms of your contract.
Depending on the product, an annuity may provide interest or investment-linked growth, tax-deferred accumulation, or scheduled income payments. Some contracts allow you to receive payments for your lifetime, while others provide income for a specified period.
Annuities can be useful for people who want to plan for retirement income, but they are not interchangeable with savings accounts, certificates of deposit, or mutual funds. They have insurance-contract terms, potential restrictions on access to your money, and guarantees that depend on the financial strength of the issuing insurer.
For context, the Investment Company Institute reported approximately $2.7 trillion in annuity reserves held outside retirement accounts and $19.9 trillion in IRA assets at the end of the second quarter of 2026. These figures describe different categories of financial assets; they do not establish that an annuity is appropriate for every investor.
How Do Annuities Work?
Understanding how annuities work starts with two questions: when do you want to receive income, and how do you want your money to grow before then? Your answers help determine the type of contract and payout structure to evaluate.
Step 1: Purchase the contract
You pay the insurer a premium, either as one lump sum or through a series of payments, depending on the product. Review the contract carefully to understand the fees, guarantees, investment options, withdrawal rules, and benefits included.
Step 2: Accumulate money or begin income
A deferred annuity generally allows your money to accumulate before you begin receiving retirement income. During this phase, interest or investment returns may increase the contract value. Many deferred annuities offer tax-deferred growth, meaning taxes on earnings are generally postponed until distributions are made.
An immediate annuity, by contrast, begins its income-payment phase shortly after purchase under the contract’s terms. It generally does not have a separate accumulation period.
Step 3: Receive payments or withdrawals
Depending on the contract, you may receive scheduled income, withdraw a portion of your money, take a permitted lump-sum distribution, or elect a lifetime income option. These choices can affect the amount of income you receive, your access to the remaining balance, and the benefits available to a beneficiary.
Not every annuity offers the same options, and some income elections are difficult or impossible to reverse. Review the specific contract before committing your money.
Step 4: Understand the guarantees
An insurer’s contractual guarantees depend on its claims-paying ability. Variable annuities and certain index-linked annuities also expose investors to investment losses. Annuities are not bank deposits insured by the FDIC or guaranteed by a federal government agency.
What Are the Different Types of Annuities?
The different types of annuities vary in how they earn returns, protect against investment losses, and provide income. The main categories include fixed annuities, variable annuities, fixed indexed annuities, and registered index-linked annuities (RILAs). Immediate and deferred describe when income begins rather than how the annuity earns its return.
| Type | How it works | Main considerations |
|---|---|---|
| Fixed annuity | The insurer credits interest according to the contract’s guaranteed rate or rate schedule. | Offers more predictable contractual growth, but check how long rates are guaranteed, how income is calculated, and whether withdrawals are restricted. |
| Variable annuity | You select investment options, usually subaccounts that invest in securities. Contract value depends on their performance and applicable charges. | Potential for investment growth comes with market risk, ongoing fees, and possible loss of principal. |
| Fixed indexed annuity | Interest credited to the contract is linked to a market index using a formula established by the contract. | Caps, participation rates, spreads, and other rules may limit credited gains. Contractual protection against negative index crediting does not eliminate every possible cost or risk. |
| Registered index-linked annuity (RILA) | Returns are linked partly to an index, and the contract may credit positive or negative returns subject to its terms. | Potential losses and gains are commonly limited by buffers, floors, or other contract mechanisms. Review the prospectus, fees, and withdrawal rules. |
Fixed annuities
A fixed annuity may appeal to someone who values predictable interest crediting over direct market participation. However, the rate may apply only for a specified period rather than the entire contract. Ask what happens when a guaranteed-rate period ends and whether the contract provides a lifetime income option.
Variable annuities
A variable annuity allows you to choose among investment subaccounts. Those investments can rise or fall in value, and charges for the insurance contract, investment options, and optional benefits can reduce returns. Before purchasing, read the prospectus and understand the fees, risks, and restrictions.
Fixed indexed annuities
A fixed indexed annuity uses a formula to determine how much interest is credited in relation to an index. The contract generally does not invest your premium directly in the index itself. Terms such as caps, participation rates, spreads, and index-crediting periods determine how index performance translates into credited interest.
Do not confuse a fixed indexed annuity with a variable annuity. Fixed indexed annuities generally provide contractual protection against negative index-crediting results, although withdrawals, charges, and the contract’s terms can still affect the amount available.
Registered index-linked annuities
A RILA is a securities product with returns linked in part to an index. Unlike a fixed indexed annuity, it can expose the contract value to negative index performance. Its loss-limiting features can reduce certain losses but do not necessarily eliminate them. Read the prospectus and ask how losses, caps, buffers, and early withdrawals work.
How Do Annuities Pay Out?
How annuities pay out depends on the contract and the income option you choose. Some allow withdrawals or a lump-sum payment, while others can convert your contract value into a stream of scheduled payments. A lifetime income option may help protect against outliving your income, but it usually involves trade-offs.
Common payout options
- Lump-sum payment: You take an available contract value in one payment. Depending on the contract and tax rules, charges or taxes may apply.
- Payments for a set period: The contract provides payments over a specified number of years. Payments generally stop when the chosen period ends.
- Lifetime income: Payments continue for as long as the covered individual lives, subject to the contract’s terms. A life-only option may provide little or no remaining benefit to beneficiaries after death.
- Life with a period certain: The annuity pays during the covered person’s lifetime and includes a specified minimum payment period. If that person dies during the period, any remaining payments are handled under the contract.
- Joint-and-survivor income: Payments continue over the lives of two covered individuals, often with a specified percentage continuing to the survivor. The initial payment may be lower than a comparable single-life option.
Before choosing a payout, ask whether the payments can change, what happens if you die early, whether a spouse or beneficiary receives continued payments, and whether you can access additional money in an emergency.
Once you irrevocably annuitize some contracts, you may lose the ability to withdraw the remaining value as a lump sum. Other products have different income-benefit or withdrawal arrangements, so read the terms before making a decision.
How Are Annuities Taxed?
How annuities are taxed depends primarily on whether the contract is held inside a qualified retirement account or purchased with after-tax money outside such an account. Earnings in many annuities grow tax-deferred, but distributions may be taxable when you receive them. The exact treatment depends on the contract, the account, your contributions, and the way you take payments.
Nonqualified annuities
A nonqualified annuity is generally purchased with money that has already been taxed. When you take a withdrawal before starting scheduled annuity payments, the taxable earnings are generally withdrawn first under federal tax rules. Once the earnings have been distributed, withdrawals of remaining investment principal are generally not taxed again.
If you elect qualifying periodic annuity payments, a portion of each payment may represent a tax-free return of your original after-tax investment, with the remainder taxable as ordinary income. The portion depends on the applicable tax calculation and contract details.
Qualified annuities
An annuity held within an IRA or employer-sponsored retirement plan is subject to the rules applicable to that account. Distributions from a traditional tax-deferred retirement account are generally taxable as ordinary income, except to the extent you have an applicable after-tax basis. Owning an annuity inside a tax-advantaged retirement account does not automatically create an additional tax benefit beyond the account’s existing tax treatment.
Early-distribution tax and contribution limits
A taxable distribution from a qualifying annuity or retirement arrangement before age 59½ may be subject to an additional 10% federal tax unless an exception applies. The additional tax generally applies to the taxable portion, not the portion that is properly treated as a tax-free return of investment.
Nonqualified annuities generally do not have the same annual contribution limits as IRAs or 401(k) plans. However, if an annuity is purchased within a qualified retirement account, the contribution limits and rules of that account still apply.
Tax consequences can be significant, particularly if you are considering surrendering a contract or using annuity money before retirement. Consult a qualified tax professional about your individual situation.
What Annuity Fees and Surrender Charges Should You Understand?
Annuity fees can reduce the value of your contract and the money you ultimately receive. The types and amounts of charges vary significantly by product. Some fixed or fixed indexed annuities have no explicit ongoing account fee, while variable annuities often have multiple visible charges. Products without a separately stated annual fee may still have implicit costs that affect credited returns.
Common annuity fees
- Administrative fees: Charges for account maintenance, recordkeeping, or contract administration.
- Mortality and expense charges: Fees found in many variable annuities that help cover insurance-related risks and contract expenses.
- Underlying investment fees: Expenses associated with the investment options inside a variable annuity.
- Optional rider fees: Charges for additional features, such as certain living-benefit or enhanced death-benefit guarantees.
- Implicit costs: Contract features such as caps, participation rates, or spreads can limit returns and therefore affect the economic value of a product.
What is an annuity surrender charge?
An annuity surrender charge is a fee that may apply when you withdraw more than the contract permits or surrender the annuity during its surrender-charge period. The charge is often highest during the early contract years and declines according to a schedule, although the exact terms vary.
Some contracts permit certain withdrawals without a surrender charge, but the amount and conditions depend on the policy. A withdrawal may still have tax consequences even when no surrender charge applies. Certain contracts may also have market-value adjustments or other provisions that affect what you receive.
Before purchasing or replacing an annuity, review the complete surrender schedule, permitted withdrawals, rider charges, and total costs. If you already own an annuity, check the current surrender value before making changes.
Is an Annuity Right for You?
An annuity may be worth considering if you want to create a predictable income stream, supplement other retirement resources, or reduce the risk of outliving a portion of your retirement income. However, an annuity is not appropriate for every person or every financial goal.
When an annuity may be worth considering
- You want to evaluate lifetime income as part of your retirement plan.
- You value contractual guarantees and understand that they depend on the insurer’s ability to pay.
- You can set aside money for the period required by the contract without compromising near-term liquidity.
- You understand how the product works, including its fees, payout provisions, withdrawal restrictions, and tax treatment.
When you should be cautious
- You may need quick access to a large portion of the money.
- You do not understand the contract’s fees, investment risks, or surrender schedule.
- You are considering a replacement contract without comparing benefits, costs, and new surrender periods.
- You are relying on projected returns or example income figures that are not guaranteed under the actual contract.
A simplified annuity example
Consider a hypothetical investor who places $100,000 in a deferred annuity with a 4% annual credited rate that remains in effect for the full 15-year illustration period. Assuming annual compounding, no withdrawals, no additional contributions, and no fees or other adjustments, the mathematical accumulation would be approximately $180,094 before taxes.
This is an illustrative calculation, not an insurer’s quote or a promise of future returns. Actual contract values depend on the specific product, rate guarantees, fees, withdrawals, and applicable contract provisions. The amount of retirement income the investor could receive would require a separate payout calculation based on the actual annuity and chosen income option.
Consider an annuity within your overall retirement plan
For Florida residents in Fort Myers and throughout Southwest Florida, the decision should be evaluated in the context of the broader retirement plan. Consider how an annuity might interact with Social Security, pension income, investment assets, emergency reserves, taxes, and future spending needs.
ASOFSP is a fee-only fiduciary financial planning firm based in Fort Myers, Florida. A broader planning perspective can help you evaluate the role an annuity may play alongside other retirement resources, rather than judging a contract solely by its advertised rate or illustrated payout.
Explore ASOFSP to learn more about the firm’s financial planning approach.
Before purchasing, exchanging, or surrendering an annuity, review the contract and confirm its fees, guarantees, tax consequences, and liquidity restrictions. A qualified financial or tax professional can help evaluate how the decision fits your personal circumstances.
This material is for general informational purposes only and is not intended as tax, legal, insurance, or individualized financial advice. Annuity terms, tax consequences, fees, and guarantees vary by contract and individual circumstances. Consult qualified financial, tax, or legal professionals regarding your situation before making a decision. The opinions expressed are general in nature and should not be considered a solicitation for the purchase or sale of any security.
Frequently Asked Questions
What is the difference between an immediate and deferred annuity?
An immediate annuity generally begins making payments shortly after you purchase it, according to the contract. A deferred annuity allows money to accumulate before you start receiving income. Deferred contracts may suit people planning for future retirement income, while immediate annuities may suit people who want income to begin soon. The available payout options and restrictions depend on the insurer and contract.
Are annuities guaranteed?
Some annuities provide contractual guarantees, such as a fixed interest rate for a specified period or income for life under a selected payout option. These guarantees depend on the financial strength and claims-paying ability of the issuing insurer, not the federal government or FDIC. Variable annuities and registered index-linked annuities can expose the owner to investment losses, so review the specific contract before buying.
How are annuities taxed?
Taxation depends on how the annuity was purchased and how money is withdrawn. For a nonqualified annuity, earnings are generally taxable as ordinary income when distributed, and withdrawals before annuity payments begin generally come from taxable earnings first. Payments may include a tax-free return of after-tax principal. Qualified annuities inside retirement accounts follow the applicable account rules, so consult a tax professional about your situation.
Can I withdraw money from an annuity early?
Many contracts allow certain withdrawals, but taking money out early can reduce your account value, trigger surrender charges, or affect other benefits. A taxable distribution before age 59½ may also be subject to an additional 10% federal tax unless an exception applies. The amount you can withdraw without charges depends on the contract. Check its surrender schedule and tax implications before accessing your money.
What fees should I check before buying an annuity?
Review administrative charges, mortality and expense fees, underlying investment expenses, optional rider charges, surrender charges, and any other contract adjustments. Some annuities also have costs that are reflected indirectly in lower credited interest or limits on investment returns. Ask for a complete explanation of all costs and how they affect your money over time, and read the contract and prospectus when one is provided.
