Annuities: How They Work, Types, and Their Role in Retirement Income

By Brent Meyer — Founder & Editor, SafeMoney.com

What is an annuity?

An annuity is a contract with an insurance company: you pay a premium — as a lump sum or a series of payments — and in exchange the insurer makes contractual promises, most often to grow your money at defined terms and to pay you income, including income guaranteed to last as long as you live. Annuities are the only financial product that can contractually guarantee lifetime income, which is why they are used in retirement planning. Those guarantees are insurance-company promises, not government backing, and they come with tradeoffs — surrender periods, limited liquidity, and terms that vary widely by product type.

Why People Use Annuities

Most people buy annuities to solve one or both of two retirement problems: protecting savings they cannot afford to lose, and turning savings into income they cannot outlive. A retiree no longer has a paycheck to recover from market losses, and no way to know whether retirement will last 15 years or 35. Annuities address both — accumulation-focused annuities grow money at contractually defined terms, and income annuities convert savings into a pension-like stream.

Annuities are not appropriate for everyone. Money committed to an annuity is less liquid than money in a bank or brokerage account, growth-oriented investors may prefer market investments, and the value of a lifetime-income guarantee depends on your health, other income sources, and how much of your savings you can reasonably commit. A sound retirement plan treats an annuity as one tool among several — not a place for all of your money.

How an Annuity Works

Every annuity has two possible phases. In the accumulation phase, your premium grows under the contract's terms — a declared fixed rate, a multi-year guaranteed rate, index-linked interest credits, or market investments, depending on the type. Growth in a deferred annuity is tax-deferred: you are not taxed on gains until you take money out.

In the income (payout) phase, the contract pays you — either by annuitizing (converting the balance into a permanent income stream), through an optional lifetime-income rider that pays income while you retain the contract, or simply through withdrawals. Deferred annuities let you choose if and when income starts; immediate annuities begin paying within about a year of purchase.

The tradeoff for these benefits is a surrender period — typically 3 to 10 years — during which withdrawals above a permitted amount (commonly 10% per year) incur surrender charges. Withdrawals of gains before age 59½ may also owe ordinary income tax plus a 10% federal tax penalty. Annuities are longer-term commitments by design; money you may need soon should generally stay out of them.

When the owner dies, most deferred annuities pay the remaining contract value to named beneficiaries directly, without probate. Income annuities depend on the payout option chosen: life-only payments stop at death, while period-certain, cash-refund, and joint-life options continue payments or return remaining premium to beneficiaries.

Are Annuities Safe? Understanding the Guarantees

Annuity guarantees are contractual insurance guarantees — promises made by the issuing insurance company and backed by its reserves and claims-paying ability. They are not FDIC-insured and not backed by the federal government. That distinction matters: the strength of an annuity guarantee is the strength of the insurer standing behind it, which is why financial-strength ratings (A.M. Best, S&P, Moody's, Fitch) belong in any annuity decision.

As a secondary backstop, every state has a guaranty association that provides limited protection to annuity owners if a member insurer fails; coverage limits and rules vary by state. State guaranty associations are a safety net of last resort — not a substitute for choosing a financially sound insurer in the first place.

Whether you can lose money depends on the type. Fixed, MYGA, and fixed indexed annuities protect principal from market losses by contract — though surrender charges can reduce what you get back if you exit early, and inflation erodes fixed payments over time. Variable annuities and RILAs expose some or all of your money to market risk and can lose value.

Types of Annuities

Annuity types differ in how your money grows, how much risk you keep, and what the contract guarantees. Each type below answers the same consumer questions: what it is, what it is for, how growth or income works, its main advantage and tradeoff, and who it may or may not fit. No type is best for everyone.

Fixed Annuity

What it is: A contract that credits a declared, guaranteed interest rate set by the insurer, with principal protected from market losses.
Primary purpose: Predictable, insurance-guaranteed growth for conservative savings.
How growth / income works: The insurer declares an interest rate — guaranteed for an initial period, then subject to renewal at a rate no lower than the contract's guaranteed minimum.
Main advantage: Simplicity: a known rate, no market exposure, tax-deferred growth.
Main tradeoff: Renewal rates can drop after the initial guarantee period, and fixed returns may trail inflation over long periods.
Who may consider it: Savers who value certainty over growth potential — similar in spirit to CD buyers, with tax deferral.
Who may not: Anyone needing ready access to the funds during the surrender period, or seeking long-term growth above fixed rates.

Multi-Year Guaranteed Annuity (MYGA)

What it is: A fixed annuity that locks one guaranteed rate for the full multi-year term — commonly 3, 5, or 7 years — rather than declaring a new rate each year.
Primary purpose: CD-like rate certainty for a defined number of years, with tax deferral.
How growth / income works: The contractual rate compounds for the entire term. At the end of the term you can typically renew, exchange to another annuity tax-free under IRC Section 1035, or withdraw.
Main advantage: The rate cannot change mid-term, and gains are not taxed until withdrawn — unlike a CD's annual interest.
Main tradeoff: Surrender charges apply for the full term, and a market-value adjustment may apply to early withdrawals; the guarantee is only as strong as the insurer.
Who may consider it: Savers comparing CD rates who do not need the interest as current income before the term ends.
Who may not: Anyone who may need the principal before the term ends, or who wants market-linked growth.

Fixed Indexed Annuity (FIA)

What it is: A fixed annuity whose interest credits are linked to the movement of a market index (such as the S&P 500). Your money is never invested directly in the index.
Primary purpose: Growth potential above traditional fixed rates while contractually protecting principal from direct market losses.
How growth / income works: Index-linked crediting with a floor (typically 0%) that limits index-related losses, and caps, participation rates, or spreads that limit how much of the index gain you receive. Many FIAs offer optional lifetime-income riders, usually for an annual fee.
Main advantage: Principal protection from direct market losses as contractually defined, with upside potential beyond declared-rate annuities.
Main tradeoff: Complexity: caps, participation rates, and spreads can change at renewal; rider fees reduce value; a 0% year credits nothing while inflation continues.
Who may consider it: Pre-retirees and retirees who want to stay off the market's downside — especially where a sequence of early losses would damage their income plan — and who will hold the contract through its term.
Who may not: Investors seeking full market returns, or anyone unwilling to accept a multi-year surrender schedule.

Immediate Annuity (SPIA)

What it is: A single premium immediate annuity: you exchange a lump sum for income payments that begin within about a year — for life, for a set period, or both.
Primary purpose: Turning a portion of savings into a pension-like paycheck, starting now.
How growth / income works: It doesn't accumulate — it pays. Payment size depends on your age, rates at purchase, and the payout option: life-only pays the most per month; joint-life, period-certain, and cash-refund options pay less but protect a spouse or beneficiaries.
Main advantage: The highest contractual income per dollar for someone who needs income immediately, guaranteed for life if elected.
Main tradeoff: The decision is largely irreversible — you give up access to the principal, and life-only payments stop at death.
Who may consider it: Retirees with an income gap after Social Security and pensions who want part of their essential expenses covered for life.
Who may not: Anyone who may need that principal back, or whose health makes a lifetime payout unlikely to pay off.

Deferred Income Annuity (DIA)

What it is: Like a SPIA, but income starts years in the future — you buy tomorrow's guaranteed paycheck at today's price. A QLAC is a DIA purchased with qualified retirement funds under special IRS rules.
Primary purpose: Longevity insurance: guaranteed income that begins later in retirement, such as at age 80 or 85.
How growth / income works: Payments are set at purchase based on the deferral period — the longer the deferral, the higher the income per premium dollar.
Main advantage: Efficiently insures against outliving your money in late retirement.
Main tradeoff: Money is committed long before income begins; dying early in the deferral can mean little or no benefit unless a refund option is chosen.
Who may consider it: Planners in their 50s–70s who want to cap longevity risk with a modest share of savings.
Who may not: Anyone uncomfortable committing funds decades ahead, or without other assets to live on in the meantime.

Variable Annuity

What it is: A securities product: premiums are invested in market subaccounts (similar to mutual funds), so the contract value rises and falls with the markets.
Primary purpose: Tax-deferred market investing inside an insurance wrapper, often with optional income or death-benefit riders.
How growth / income works: Directly with subaccount performance — full market upside and full market downside, minus fees.
Main advantage: Unlimited growth potential with tax deferral, plus optional guarantees available by rider.
Main tradeoff: You can lose money, and combined fees (mortality and expense charges, fund expenses, rider fees) are often among the highest of any annuity type. Regulated by the SEC and FINRA as securities.
Who may consider it: Long-horizon investors who have maxed other tax-advantaged accounts and understand the fee structure.
Who may not: Anyone whose goal is principal protection — market losses in a variable annuity are real losses.

Registered Index-Linked Annuity (RILA)

What it is: A securities product between an FIA and a variable annuity: index-linked returns with a buffer or floor that absorbs part — not all — of market losses in exchange for higher caps.
Primary purpose: More upside than an FIA for investors willing to accept defined, partial downside risk.
How growth / income works: Index-linked crediting where, for example, a 10% buffer means the insurer absorbs the first 10% of an index loss and you absorb the rest.
Main advantage: Meaningfully higher caps or participation than FIAs, with defined (not unlimited) downside.
Main tradeoff: You can lose money beyond the buffer; terms are complex and vary widely by product.
Who may consider it: Investors comfortable with partial market risk who want structured outcomes.
Who may not: Safe-money savers whose priority is full principal protection.

Annuities in a Retirement Income Plan

SafeMoney.com looks at annuities through a retirement-planning lens, because that is where their guarantees do their real work. Retirement converts two abstract risks into monthly realities: longevity risk (outliving savings) and sequence-of-returns risk (market losses early in retirement doing permanent damage, because withdrawals lock the losses in). Lifetime-income annuities directly insure the first; principal-protected annuities remove the second for the money placed in them.

A common framework is income flooring: add up essential monthly expenses, subtract guaranteed income you already have (Social Security, any pension), and consider covering some or all of the remaining gap with contractually guaranteed annuity income. Annuity income can also help a retiree delay claiming Social Security — each year of delay from full retirement age to 70 permanently increases the Social Security benefit — and can protect a surviving spouse when joint-life options are elected.

The same lens defines the limits: keep an emergency reserve outside any annuity, keep growth-oriented assets for inflation and later-life needs, and never commit money to a surrender-charge product that you may need during the surrender period. No one should put all of their retirement money into an annuity — diversification across liquidity, growth, and guarantees is the point of the plan.

How Annuities Are Taxed

Annuity growth is tax-deferred: you pay no tax on gains until money comes out. When it does, gains are taxed as ordinary income — not at capital-gains rates. For a nonqualified annuity (bought with after-tax money), withdrawals are taxed earnings-first, while annuitized payments spread taxation using an exclusion ratio: part of each payment is a tax-free return of your premium and part is taxable earnings. Withdrawals of gains before age 59½ generally also owe a 10% federal tax penalty unless an exception applies.

A qualified annuity — one held inside an IRA, 401(k), or similar plan — follows the plan's tax rules instead: distributions are generally fully taxable as ordinary income (the annuity adds no extra tax deferral there; its value inside a plan is its guarantees), and required minimum distribution rules apply. Exchanging one nonqualified annuity for another can be done tax-free under IRC Section 1035 when the rules are followed. Tax outcomes depend on your situation — confirm specifics with a tax professional before acting.

Surrender Periods, Liquidity, and What Happens at Maturity

Every deferred annuity has a surrender schedule — a set number of years during which withdrawals above the contract's free-withdrawal allowance (commonly 10% per year) incur a declining surrender charge. Some contracts also apply a market-value adjustment. These schedules are disclosed in the contract; know yours before you buy, and know it again before you take money out.

When the surrender period ends, the money is yours without charge — a decision point many owners overlook. Options typically include leaving the contract in place, renewing (a MYGA may renew at a much lower rate if left on autopilot), exchanging tax-free to a more competitive contract under Section 1035, annuitizing for income, or withdrawing (and paying tax on gains). Reviewing an annuity at the end of its term is one of the most financially consequential check-ins a retiree can make.

Suitability, Best Interest, and Buying Carefully

Annuity sales are regulated at the state level, and most states have adopted the NAIC's best-interest standard for annuity recommendations: the producer must have a reasonable basis to believe the recommendation effectively addresses your particular financial situation, needs, and objectives — and must disclose how they are compensated. Variable annuities and RILAs are additionally regulated as securities by the SEC and FINRA.

Practical protections to use: verify the agent's license and the insurer's standing with your state insurance department, check the insurer's financial-strength ratings, read the disclosure and illustration (including the guaranteed column, not just the projected one), and use the free-look period — a state-mandated window (typically 10 to 30 days) after delivery during which you can cancel the contract for a refund.

Questions to Ask Before You Buy an Annuity

What problem is this annuity solving in my plan — protected growth, lifetime income, or longevity insurance?
How long is the surrender period, what are the charges by year, and is there a market-value adjustment?
How much can I withdraw each year without a charge?
For an FIA or RILA: what are the current cap, participation rate, spread, and floor or buffer — and can the insurer change them at renewal?
If there is an income rider: what does it cost annually, and how is the income amount actually calculated?
What is the insurer's financial-strength rating from A.M. Best, S&P, Moody's, or Fitch?
What happens to this contract when I die — and does the payout option I'm choosing protect my spouse?
How is the person recommending this annuity compensated?
What is the free-look period in my state, and when does it start?
If I'm replacing an existing annuity: exactly what do I give up, and does the new surrender schedule restart?

How to Compare Annuities and Get Professional Help

Compare annuities of the same type on the same footing: identical premium, the guaranteed values side by side, total fees and rider charges, surrender schedules, renewal-rate history where available, and the insurer's financial strength. For income purposes, the cleanest comparison is contractual income per premium dollar at the age you plan to start — not hypothetical illustrations.

Because annuities are long-term commitments with real complexity, independent licensed guidance matters. A professional acting under the best-interest standard should be able to show you, in writing, why a specific contract fits your situation — and should be equally willing to tell you when an annuity is not the right tool. SafeMoney.com's educational mission is to prepare you for that conversation, not to sell you a product.

Go Deeper: SafeMoney.com Annuity Guides & Tools

Fixed Annuities Explained — Declared rates, guarantees, and how fixed annuities compare.
Current MYGA Rates — Live multi-year guaranteed annuity rates by term and state.
Fixed Indexed Annuities (FIA) In Depth — The full FIA guide: crediting methods, riders, and tradeoffs.
Immediate Annuities (SPIA) — Exchanging a lump sum for income that starts now.
Deferred Income Annuities & Longevity Planning — Buying future income at today's price.
Variable Annuities: A Clear-Eyed Look — Market exposure, fees, and where they fit — or don't.
Annuity Payout Calculator — Estimate income from a given premium and payout option.
Annuity Income Estimator — Model lifetime-income scenarios by age and deferral.
How Are Annuities Taxed? — Qualified vs. nonqualified taxation in plain English.
What to Do With an Annuity at Maturity — The end-of-surrender-term decision, step by step.
Retirement Income Hub — Building an income floor with Social Security, pensions, and annuities.
Retirement Planning Hub — The wider safe-money retirement framework this page fits into.
Find a Licensed Professional — Independent help evaluating whether an annuity fits your plan.

Sources

Material factual, regulatory, and tax claims on this page are supported by the following primary sources. Annuities are regulated by your state's insurance department (and, for variable annuities and RILAs, by the SEC and FINRA); tax treatment is summarized from federal guidance and depends on your situation.

IRS — Publication 575, Pension and Annuity Income — Federal tax treatment of annuity payments, the exclusion ratio, and the early-distribution penalty.
NAIC — Annuities Consumer Guidance — Annuity types, buyer's-guide comparisons, suitability/best-interest protections, and free-look rights from the National Association of Insurance Commissioners.
FINRA — Annuities Overview — How fixed, indexed, and variable annuities differ, and the securities regulation that applies to variable products.
NOLHGA — National Organization of Life & Health Insurance Guaranty Associations — How state guaranty associations provide limited backstop protection when an insurer fails; limits vary by state.
NAIC — State Insurance Department Directory — Verify an agent's license or file a complaint with your state regulator.

This page is educational and is not tax, legal, or investment advice, and it does not recommend any specific product. All annuity guarantees are subject to the claims-paying ability of the issuing insurance company. State guaranty association protection is limited and varies by state. Consult a licensed professional about your specific situation.