How Annuities Generate Retirement Income: A Plain-English Guide

What Is an Annuity?

An annuity is a contract between you and an insurance company. You give them a lump sum (or a series of payments), and in return they guarantee you a stream of income — either immediately or starting at a future date.

Think of it as the opposite of life insurance: life insurance protects your family if you die too soon, while an annuity protects you if you live longer than expected and risk running out of money.

The Three Main Types

Fixed annuities pay a guaranteed interest rate for a set period — similar to a CD but issued by an insurance company. In 2026, competitive fixed annuity rates range from 3.5% to 6% depending on the term length. Your principal is protected regardless of market conditions.

Fixed indexed annuities (FIAs) tie your interest credits to a market index like the S&P 500. When the index goes up, you earn a portion of the gains (subject to a cap or participation rate). When the index drops, your account value stays flat — you never lose money to market downturns. The tradeoff is capped upside.

Variable annuities let you invest in sub-accounts similar to mutual funds. Your returns depend entirely on market performance, meaning you can gain more but also lose principal. Variable annuities carry higher fees and are generally best for people who have already maxed out other tax-advantaged accounts.

Accumulation vs. Distribution Phase

During the accumulation phase, your money grows tax-deferred — you don't pay taxes on interest or gains until you withdraw. This phase can last years or decades depending on when you want income to begin.

The distribution phase begins when you 'annuitize' the contract or activate an income rider. At that point, the insurance company calculates your payment based on your account value, age, interest rate assumptions, and the payout option you choose (life only, joint life, period certain, etc.).

Income Riders: Guaranteed Lifetime Withdrawal Benefits

Most modern FIAs offer an optional income rider — a Guaranteed Lifetime Withdrawal Benefit (GLWB). For an additional annual fee (typically 0.5%–1.25%), the rider guarantees you can withdraw a fixed percentage of a 'benefit base' every year for life, regardless of your actual account value.

The benefit base often grows at a guaranteed roll-up rate (e.g., 6–7% simple interest) during the deferral period, which means delaying income start can significantly increase your future payments. This feature makes FIAs popular for people 5–15 years away from retirement.

Who Should Consider an Annuity?

Annuities are best for retirees or near-retirees who want predictable, guaranteed income to cover essential expenses — housing, food, healthcare — that Social Security and pensions don't fully cover.

They're also valuable for people who are risk-averse and anxious about market volatility, or those who worry about longevity risk (outliving their savings). A fixed or indexed annuity provides peace of mind that a stock portfolio can't.

Annuities are generally not ideal for young investors, people who need liquidity, or those in low tax brackets who wouldn't benefit much from tax deferral.

Watch Out for Surrender Charges

Most annuities impose surrender charges if you withdraw more than a penalty-free amount (usually 10% per year) during the surrender period — typically 5 to 10 years. Charges start high (8–10%) and decline annually.

Before buying, make sure you have sufficient liquid savings outside the annuity for emergencies. We recommend annuitizing only money you're confident you won't need for at least the length of the surrender period.