What Is an Annuity and How Can It Create Retirement Income?

A practical examination of annuity contracts, lifetime income and the risks retirees face when converting savings into cash flow.

An annuity is a contract with an insurance company. Investor.gov explains that annuities can provide tax-deferred accumulation and can be structured to make periodic income payments, including payments that may continue for life depending on the contract and payout election. That lifetime-income feature is what separates an annuity from an ordinary investment account: the contract can transfer some longevity risk—the risk of living longer than expected—to an insurer.

Annuities are not one product. Fixed, fixed indexed and variable annuities can behave very differently, and income guarantees may come through annuitization or optional contract benefits. Guarantees are subject to the issuing insurer’s claims-paying ability. Contract owners should also evaluate surrender periods, liquidity, fees where applicable, crediting methods, caps or participation rates for indexed strategies, beneficiary provisions and tax treatment before deciding whether a contract fits a retirement plan.

Accumulation and income are two different jobs

During working years, the primary objective is often accumulation: save and invest enough to build retirement capital. Retirement introduces a second job—turning capital into dependable cash flow. An annuity can be used for accumulation, income, or both, depending on the contract.

Immediate versus deferred annuities

An immediate annuity generally begins payments soon after purchase. A deferred annuity allows assets to accumulate before income begins. Within deferred annuities, fixed contracts credit interest according to the contract; fixed indexed contracts use formulas linked to an external index; variable annuities place value in investment options whose performance can fluctuate. These categories should not be treated as interchangeable.

How lifetime income works

Lifetime income can be created by annuitizing a contract or, in some products, by using an income benefit or rider subject to its terms. The amount depends on factors such as age, premium, payout option, interest assumptions and whether income covers one life or two. A lifetime guarantee is valuable precisely because the insurer—not the retiree—takes on the contractual obligation to continue covered payments even if the annuitant lives far longer than expected.

What you give up for guarantees

Guarantees are not free. Depending on the design, the owner may accept reduced liquidity, surrender charges, rider costs, limits on upside or loss of access to principal after irrevocable annuitization. That tradeoff is why annuities are often best evaluated as one component of a retirement-income plan rather than as a replacement for every liquid investment.

Tax treatment

Nonqualified annuities generally grow tax deferred, but distributions have specific tax rules and early distributions may face penalties. Qualified annuities inside retirement accounts do not create an additional layer of tax deferral. IRS Publication 575 and contract-specific tax guidance should be consulted for individual situations.

References & further reading

1. Investor.gov (U.S. SEC), Annuities.
2. Investor.gov (U.S. SEC), Updated Investor Bulletin: Indexed Annuities.
3. Investor.gov (U.S. SEC), Updated Investor Bulletin: Variable Annuities.
4. Internal Revenue Service, Publication 575: Pension and Annuity Income.