What Is an Annuity? Types, Benefits, and Risks Explained

What Is an Annuity?

An annuity is a contract between an individual and an insurance company in which the individual makes a lump-sum payment or series of payments in exchange for regular disbursements that begin either immediately or at a future date. Annuities are primarily used as retirement income tools designed to address one of the central financial risks of aging: longevity risk — the possibility of outliving one's savings.

Insurance companies pool mortality risk across many policyholders, allowing them to offer income guarantees that individuals cannot replicate on their own. The annuity market in the United States exceeded $400 billion in annual sales in recent years, reflecting growing demand as the Baby Boom generation transitions into retirement.

Types of Annuities

Annuities come in several broad categories, each with different risk and return profiles.

Fixed Annuities

Fixed annuities credit a guaranteed interest rate for a specified period, similar in concept to a bank CD but issued by an insurance company. Multi-year guaranteed annuities (MYGAs) lock in a rate for 2–10 years. They are simple, predictable, and often used for capital preservation.

Variable Annuities

Variable annuities allow the account value to grow (or decline) based on performance of investment sub-accounts chosen by the annuitant. Many variable annuities come with optional living benefit riders that guarantee a minimum income stream regardless of investment performance — but these riders add significant cost.

Fixed-Indexed Annuities

Fixed-indexed annuities offer returns linked to a market index, subject to a cap (maximum gain) and a floor (typically 0%, protecting against loss). For example, if the S&P 500 rises 18% in a year and the cap is 8%, the annuity credits 8%. If the index falls, the annuity credits 0% rather than a negative return. This structure appeals to investors seeking some market participation without downside exposure.

Immediate vs. Deferred Annuities

• Immediate annuities (SPIAs): Purchased with a lump sum; income payments begin within 30 days to one year. Best for those already in retirement who want instant income.
• Deferred annuities: Accumulate value over time (the accumulation phase) before converting to income (the distribution phase). Tax on earnings is deferred until withdrawal, similar to a traditional IRA.

Payout Options

When an annuity begins paying income, the annuitant typically selects from several payout structures:

Costs and Drawbacks

Annuities, particularly variable annuities, often carry substantial fees that can erode returns:

• Mortality and expense (M&E) charges: Typically 1–1.5% annually in variable annuities
• Administrative fees: Often $30–$50 per year or 0.1–0.3% annually
• Investment management fees: 0.5–2% annually on sub-account funds
• Rider fees: Living benefit or death benefit riders add 0.5–1.5% annually
• Surrender charges: Significant penalties (often 7–10% declining over 7–10 years) for early withdrawal

Fixed annuities and FIAs generally have lower or no explicit fees, but insurers profit through the spread between credited rates and actual investment returns.

Tax Treatment

Annuities purchased with after-tax dollars grow tax-deferred. When distributions begin, only the earnings portion is taxable as ordinary income; the return of principal (cost basis) is not. Annuities held inside qualified retirement accounts (like IRAs) are fully taxable on distribution since contributions were pre-tax.

This article is for informational purposes only and does not constitute financial or investment advice. Annuity products vary significantly; consult a licensed financial advisor before purchasing.