What an Annuity Is and How It Works

An annuity is a contract with an insurance company where you give them money now, and they pay you back in regular installments over time

You hand over a lump sum — say $100,000 — to an insurance company. In return, that company promises to send you a fixed amount every month, quarter, or year for a set period or for the rest of your life. The insurance company keeps your money, invests it, and uses the returns to fund your payments. You stop worrying about managing that money yourself.

The appeal is straightforward: you trade a large pile of cash today for the certainty of regular paychecks tomorrow. No stock market swings to watch. No decisions about where to invest. The insurance company bears the investment risk and the longevity risk — if you live longer than expected, they still pay you.

Annuities are sold by insurance companies, not banks or brokerages, though you may buy one through a financial advisor or broker who works with insurers. They are not government programs and not investments you can trade or sell quickly. Once you sign the contract, you are locked in.

Key Takeaways

• An annuity is an insurance contract where you pay a lump sum upfront and receive regular payments for a set time or for life.
• The insurance company invests your money and assumes the risk that you will live longer than expected or that investments underperform.
• Different annuity types offer different payment schedules: some pay for a fixed number of years, others for your entire lifetime, and some include a survivor benefit for your heirs.
• Annuities typically charge fees for administration and insurance protection, and withdrawing money early often triggers a surrender charge.
• An annuity is not a savings account or investment you can easily access — it is a long-term commitment designed to produce steady income.

The three main types of annuities and what each one pays

A fixed annuity pays you the same amount every period for the life of the contract. The insurance company guarantees the payment amount when you sign. If you buy a fixed annuity for $100,000 and the contract says you get $500 per month for 20 years, you will get exactly $500 every month for 20 years, no matter what happens in the markets. This type offers predictability but no protection against inflation — your $500 buys less in year 10 than in year 1.

A variable annuity ties your payments to the performance of investment accounts you choose within the annuity. If those accounts earn high returns, your payment grows. If they lose money, your payment shrinks. You bear the investment risk, but you also have the potential for higher payments if markets do well. Variable annuities are more complex and typically carry higher fees than fixed ones.

An when ready annuity starts paying you right away — usually within a month or two of purchase. You give the insurance company a lump sum, and they begin sending checks almost when ready. This is the simplest type and the one most people mean when they talk about annuities for retirement income.

A deferred annuity takes your money now but does not start paying you until a future date you choose — perhaps 10 or 20 years from now. The money grows inside the contract during the waiting period, and then payments begin. This type is often used by younger workers who want to lock in a future income stream.

How the payment amount is calculated

The insurance company uses three main factors to decide how much to pay you each month. The first is your age and sex — older buyers and women (who statistically live longer) receive smaller monthly payments because the insurer expects to pay them for more years. A 65-year-old woman and a 65-year-old man who both buy the same annuity with the same money will receive different monthly amounts.

The second factor is interest rates at the time you buy. When interest rates are high, insurance companies can earn more from investing your money, so they can afford to pay you more. When rates are low, your monthly payment is lower. This is why the timing of an annuity purchase matters — buying during a high-rate environment locks in a higher payment for life.

The third factor is how long you want the payments to last. An annuity that pays for 10 years sends you larger monthly checks than one that pays for 30 years, because the insurer is spreading your money over fewer payments. An annuity that pays for your entire life — called a life annuity — typically pays less per month than a fixed-term annuity, because the insurer does not know how long you will live.

Fees and costs you will encounter

Annuities are not free to own. Most carry an annual mortality and expense fee, typically 0.5% to 1.5% of your account value each year. This covers the insurance company's cost of guaranteeing your payments and managing the contract. Some annuities also charge an administrative fee, usually a flat dollar amount or a small percentage.

Variable annuities charge investment management fees on top of the base fees — these vary depending on which investment accounts you choose within the annuity, but often range from 0.5% to 2% per year. Over decades, these fees compound and reduce the total amount you receive.

If you need to withdraw money before the contract term ends, you will likely face a surrender charge — a penalty that decreases over time. A typical surrender charge might be 7% in year one, declining by 1% each year until it reaches zero in year 8. If you withdraw $10,000 in year 2 and the surrender charge is 6%, you lose $600 of that withdrawal. This is why annuities are meant for money you do not plan to touch.

Who uses annuities and why

Annuities appeal most to people in or near retirement who have a large sum of money and want to convert it into a steady paycheck. Someone who receives a pension lump-sum payout, inherits a significant amount, or sells a business might use an annuity to may support they have reliable income for life without having to manage investments.

They are also used by people who are uncomfortable with market risk or who do not want to spend time managing a portfolio. If you do not want to think about stock prices or rebalancing, an annuity removes that burden — the insurance company handles it.

Annuities are less useful for people who need access to their money, who expect to live a short life due to health issues, or who believe they can earn higher returns by investing the money themselves. They are also less attractive in a low-interest-rate environment, because the payments are locked in at those low rates.

What happens to your money if you die

The answer depends on the type of annuity you choose. A basic life annuity pays you for as long as you live, but when you die, the payments stop. Any remaining money stays with the insurance company. This type offers the highest monthly payment because the insurer keeps any unused balance.

A life annuity with period certain guarantees payments for a minimum number of years — say 10 or 20 years — even if you die sooner. If you die in year 3 of a 10-year period certain, your heirs receive the remaining 7 years of payments. This option pays less per month than a straight life annuity, but it protects your heirs.

A joint and survivor annuity continues paying your spouse or designated beneficiary for their lifetime after you die. This is common for married couples and pays the least per month because the insurer expects to make payments for two lifetimes instead of one.

How an annuity differs from other ways to invest or save

An annuity is not a savings account. A savings account is liquid — you can withdraw your money anytime without penalty. An annuity locks your money away and charges you heavily if you need it early. A savings account earns interest set by the bank. An annuity's return is set by the insurance company based on age, rates, and contract terms.

An annuity is also not a stock or bond investment. Stocks and bonds are securities you own outright and can sell whenever you want. An annuity is a contract with an insurance company — you own nothing tangible, and you cannot sell it on the open market. If you need out, you must surrender it to the insurance company and pay the surrender charge.

An annuity is closer to a pension, because both provide regular income for life. The difference is that a pension is funded by an employer and is a benefit you earned through work. An annuity is funded by you with your own money and is a product you purchase. Both remove the burden of managing investments and both provide income you cannot outlive.

Questions to ask before buying an annuity

Before signing an annuity contract, understand what you are giving up. Ask the insurance company or broker: What is the total of all annual fees, expressed as a percentage? What is the surrender charge schedule, and how long until it reaches zero? Can you withdraw a small amount each year without penalty? What happens to your money if you die in year 2? What is the payment amount, and how was it calculated?

Also ask yourself: Do I need this money within the next 5 to 10 years? If yes, an annuity is the wrong choice. Do I have other sources of income or savings I can tap if an emergency arises? If no, do not put all your money into an annuity. Am I buying this because I understand it, or because someone told me to? If the latter, slow down and read the contract yourself or have a trusted advisor review it.

Frequently Asked Questions

Can I get my money back if I change my mind?

Most annuities have a free-look period of 10 to 30 days after purchase, during which you can return the contract and get your full money back with no penalty. After that window closes, you can still withdraw your money, but you will pay a surrender charge that typically starts at 5% to 7% and decreases each year. Read your contract to find the exact timeline.

What if the insurance company goes out of business?

Each state has a guaranty fund that protects annuity holders if an insurance company fails. The protection limit varies by state but is typically $100,000 to $250,000 per person per company. If you are buying a large annuity, ask the insurance company about its financial rating from agencies like A.M. Best or Moody's to reduce the risk of failure.

Is an annuity the same as a 401(k) or IRA?

No. A 401(k) and IRA are retirement savings accounts you control — you choose how to invest the money inside them and can withdraw it (with penalties if you are young). An annuity is an insurance contract that produces income. You can buy an annuity inside an IRA or 401(k), but the account and the annuity are different things.

Do I have to pay taxes on annuity payments?

Yes, but the tax treatment depends on whether you bought the annuity with pre-tax or after-tax money. If you used pre-tax money (like a 401(k) rollover), your entire payment is taxable income. If you used after-tax money, only the earnings portion is taxable — the part that represents your original money is not. Consult a tax professional about your specific situation.

Can I use an annuity if I am still working?

Yes. You can buy an annuity at any age, though it makes most sense when you have a large lump sum and are close to or in retirement. If you are still working and earning a salary, an when ready annuity may not be necessary. A deferred annuity — one that starts paying you in 10 or 20 years — might make more sense if you want to lock in future income.