What Is an Annuity? A Plain-English Guide for 2026

An annuity is a contract between you and an insurance company. You give the insurer a lump sum or a series of payments, and in exchange they promise to pay you a stream of income — either for a set number of years or for the rest of your life. In simple terms, an annuity is a tool designed to turn savings into a predictable paycheck in retirement.

Americans hold more than $2 trillion in annuity contracts, and sales have hit record highs as retirees look for guaranteed income in a volatile market. But the word "annuity" covers a wide range of products, some simple and some very complex. This guide breaks it down in plain English.

How an annuity works

Every annuity goes through two phases:

1. Accumulation phase — you fund the contract with either one lump sum (a "single premium" annuity) or ongoing contributions over time. Your money grows tax-deferred inside the contract.
2. Payout phase — you "annuitize" the contract or begin withdrawals, and the insurance company sends you regular income, typically monthly.

You can choose income for a fixed period (say, 20 years), for your lifetime, or for the joint lifetime of you and your spouse. Lifetime payout is the feature that makes annuities unique — no other retirement product can guarantee you won't outlive your money.

The main types of annuities

1. Fixed annuities

A fixed annuity pays a guaranteed interest rate set by the insurance company, similar to a bank CD. Your principal is protected and your growth is predictable. These are the simplest annuities and usually the easiest to compare.

2. Fixed indexed annuities (FIA)

A fixed indexed annuity credits interest based on the performance of a market index (like the S&P 500), but with a floor of 0% — meaning you can't lose money to market drops. In exchange, your upside is capped or limited by a "participation rate."

3. Variable annuities

A variable annuity lets you invest your money in sub-accounts similar to mutual funds. Your returns rise and fall with the market. Variable annuities offer the highest upside but also the most risk and typically the highest fees.

4. Immediate (income) annuities

A single premium immediate annuity (SPIA) converts a lump sum into income that starts within a year. There's no accumulation phase — you're buying a paycheck.

5. Deferred income annuities

A deferred income annuity (sometimes called a longevity annuity) lets you buy income today that starts at a future date — often 10, 15, or 20 years out. Because the insurer holds your money longer, the payout is significantly higher.

Key benefits of annuities

• Guaranteed lifetime income — protection against outliving your savings.
• Tax-deferred growth — you don't pay tax on earnings until you withdraw them.
• Principal protection — fixed and indexed annuities protect your original deposit.
• No contribution limits — unlike IRAs and 401(k)s.
• Optional riders — for enhanced death benefits, long-term care, or income guarantees.

What to watch out for

Annuities aren't perfect. Common trade-offs include surrender charges (fees for early withdrawal, often 7–10 years), limited liquidity, fees on variable and indexed products, and complexity — some contracts run 100+ pages. Always read the disclosure, and choose an insurer with a strong financial-strength rating.

Who should consider an annuity?

An annuity may be a good fit if you:

• Are within 10 years of retirement, or already retired.
• Have maxed out other tax-advantaged accounts (401(k), IRA).
• Want a portion of your retirement income guaranteed.
• Are concerned about running out of money in your 80s or 90s.
• Want to protect a specific chunk of savings from market losses.

How to compare annuity providers

When you're ready to look at real quotes, focus on the financial strength rating of the insurer (A or better from AM Best), the guaranteed rate, the surrender schedule, and the lifetime income benefit. AnnuitySelector shows top-rated providers side-by-side so you can review options in your area in under a minute.