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 or for the rest of your life

You buy an annuity by handing a lump sum to an insurance company. In return, they promise to send you payments — weekly, monthly, quarterly, or annually — for a period you choose or for as long as you live. The insurance company keeps your money, invests it, and pays you from those returns plus their own reserves. You stop receiving payments when the contract ends or when you die, depending on which type you chose.

Annuities are not the same as savings accounts, bonds, or stocks. You cannot withdraw the full amount whenever you want. You cannot pass the remaining balance to your heirs in most cases. What you get instead is predictability: a payment you can count on, usually for decades.

Key Takeaways

• An annuity converts a lump sum into a stream of payments, and the insurance company bears the risk that you live longer than expected.
• Fixed annuities pay the same amount every period; variable annuities tie payments to investment performance; indexed annuities track a market index with a floor and ceiling.
• when ready annuities start paying you within a year; deferred annuities let your money grow for years before payments begin.
• Annuities have high fees, surrender charges if you withdraw early, and limited liquidity compared to other retirement savings.
• An annuity makes sense if you want may provide income you cannot outlive, but it locks up money and reduces flexibility.

How the insurance company makes money on an annuity

The insurance company invests your lump sum and keeps the returns above what they promised to pay you. If you give them $100,000 and they promise you $500 per month for life, they invest that $100,000 and use the gains to fund your payments. If their investments earn more than the cost of your payments, they profit. If you die sooner than they expected, they profit more. If you live much longer, they lose money on that contract — but they balance this across thousands of customers.

This is why annuities have fees. The insurance company charges you for taking on the risk that you live to 100. They also charge for the cost of selling the contract, managing the account, and maintaining their reserves. These fees are often hidden in the fine print and can range from 1% to 3% of your balance per year, depending on the type.

Fixed, variable, and indexed annuities: what the differences mean

Fixed annuities pay you the same dollar amount every period, no matter what happens in the markets. You might get $1,000 per month for life. The insurance company guarantees this, which is why the payment is usually lower than what you might earn if you invested the money yourself. The trade-off is certainty: you know exactly what you will receive.

Variable annuities tie your payments to the performance of investment accounts you choose — usually mutual funds. If the market goes up, your payment goes up. If it goes down, your payment goes down. You have more upside potential but also more risk. Variable annuities come with higher fees because the insurance company has to manage the underlying investments and provide guarantees (like a minimum payment floor) that protect you if markets crash.

Indexed annuities sit between the two. Your payment is tied to the performance of a market index like the S&P 500, but with a floor (you will not lose money even if the index drops) and a cap (your gains are limited to a percentage the insurance company sets, often 5% to 10% per year). This appeals to people who want some market upside without the full downside risk, though the cap means you give up significant gains in strong years.

when ready versus deferred: when you start receiving payments

when ready annuities start paying you within one year of purchase, usually within a few months. You hand over a lump sum, and the insurance company begins sending you checks. These are straightforward and have lower fees than deferred annuities because there is no investment account to manage. They are common for people who have just retired and want to convert a portion of their savings into may provide income right away.

Deferred annuities let your money grow for years or decades before payments begin. You might buy one at age 55 and not receive payments until age 70. During the growth phase, your balance compounds — either at a fixed rate, through variable investments, or tied to an index. When the payout phase starts, the insurance company calculates your payment based on your age at that time and the balance you have accumulated. Deferred annuities have higher fees and often include surrender charges: penalties if you withdraw money before the payout phase begins.

What surrender charges and withdrawal penalties cost you

Most annuities, especially deferred ones, lock your money up. If you need to withdraw more than a small amount before the contract allows it, you pay a surrender charge — a percentage of the withdrawal that goes to the insurance company. These charges often start at 7% to 10% and decline by 1% per year. So if you buy a deferred annuity and need your money back in year two, you might lose 8% of what you withdraw.

Some annuities allow you to withdraw a small percentage each year without penalty — often 10% — but anything beyond that triggers the charge. A few annuities let you access your money penalty-free if you enter a nursing home or are diagnosed with a terminal illness, but read the contract carefully because these exceptions are narrow.

This is why annuities are not suitable for money you might need soon. They are designed for retirement income you plan to leave untouched for years.

Who annuities make sense for and who they do not

An annuity is worth considering if you have a large lump sum from a pension, inheritance, or retirement account and you want to convert part of it into income you cannot outlive. If you are worried about running out of money in your 90s, an annuity removes that worry by guaranteeing payments for life. It also simplifies your finances: instead of managing investments and worrying about market timing, you receive a check.

An annuity is usually not the right choice if you are young, if you might need the money, if you have a short life expectancy, or if you are comfortable managing your own investments. Annuities have high fees that eat into returns over time. They reduce your flexibility and your heirs' inheritance. If you die shortly after buying an annuity, your family gets nothing (unless you chose a "period certain" option that guarantees payments for a set number of years). For many people, a mix of bonds, dividend stocks, and a smaller when ready annuity works better than putting all their money into one contract.

Common mistakes people make when buying annuities

The biggest mistake is not reading the contract or understanding the fees. Annuities are complex, and insurance agents are paid commission to sell them — often 5% to 10% of your purchase price. This creates a conflict of interest. Before you buy, ask the agent to show you the fee schedule in writing and explain every charge. If they cannot or will not, walk away.

Another mistake is buying an annuity inside a retirement account like an IRA. You already get tax-deferred growth in an IRA, so paying extra for an annuity's tax deferral is redundant. You are paying fees for a benefit you already have.

A third mistake is buying too much annuity. You do not need to convert all your savings into may provide income. A common rule is to annuitize enough to cover essential expenses — housing, food, utilities, healthcare — and keep the rest in investments you can access. This gives you both security and flexibility.

Frequently Asked Questions

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

Most states have a "free look" period of 10 to 30 days after you buy an annuity. During this window, you can return the contract and get your money back with no penalty. After that period ends, surrender charges explore if you withdraw. Read your contract to find the exact dates and any exceptions.

What happens to my annuity if the insurance company goes out of business?

Each state has a guaranty fund that protects annuity holders if an insurance company fails. The fund typically covers up to $250,000 per person per company, though this varies by state. Before buying, check the financial rating of the insurance company through agencies like A.M. Best or Moody's to reduce this risk.

Are annuities taxed differently than other investments?

If you buy an annuity with after-tax money, you only pay income tax on the earnings portion of each payment, not the principal. If you buy one inside an IRA or 401(k), all payments are taxed as ordinary income when you withdraw them. Consult a tax professional about your specific situation before buying.

Can I leave an annuity to my heirs?

It depends on the contract. A straightforward life annuity pays only while you are alive, so your heirs receive nothing. A "period certain" annuity guarantees payments for a set number of years — if you die before that period ends, your heirs receive the remaining payments. A "life with period certain" annuity pays for life but guarantees at least a minimum number of years of payments to your estate. These options cost more because the insurance company's risk is lower.

How do I know if an annuity is right for me?

Work with a fee-only financial planner — one who charges you directly rather than earning commission on products they sell. They can model whether an annuity fits your retirement plan, how much you should annuitize, and which type makes sense. This costs money upfront but often saves you far more by avoiding a bad purchase.