What an Annuity Is and How It Works

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

The insurance company invests your lump sum and promises to return it to you in monthly, quarterly, or annual payments — sometimes for a set number of years, sometimes for the rest of your life. You buy an annuity to convert a large amount of money into predictable income you cannot outlive or accidentally spend all at once.

The word "annuity" comes from the Latin for "year," because the payments happen on a yearly schedule (though modern annuities pay more frequently). The core idea has existed for centuries: you trade liquidity now for security later.

Key Takeaways

• An annuity is an insurance contract where you pay a lump sum and receive regular payments back, either for a fixed period or for life.
• The insurance company keeps your money, invests it, and guarantees the payment schedule regardless of market performance or how long you live.
• when ready annuities start paying you within a year; deferred annuities let your money grow before payments begin.
• Fixed annuities pay the same amount every period; variable annuities pay amounts that change based on investment performance.
• Annuities have high fees, surrender charges if you withdraw early, and limited access to your original money once the contract starts.

The two main types: when ready and deferred

An when ready annuity begins paying you within one year of purchase. You hand over a lump sum — say $200,000 — and the insurance company starts sending you monthly checks within weeks or months. This type is common for people who have just received a large settlement, inheritance, or retirement payout and want income to start right away.

A deferred annuity delays payments. You give the insurance company money today, it grows (either at a fixed rate or tied to market performance) for months or years, and then you start receiving payments later. Deferred annuities are often sold as retirement savings vehicles — you contribute during your working years and collect starting at age 65 or whenever you choose.

The longer you wait to start payments on a deferred annuity, the larger each payment will be, because the insurance company has had more time to invest your money and earn returns.

Fixed annuities versus variable annuities

A fixed annuity pays you the same dollar amount every month or quarter, no matter what happens in the stock market or broader economy. The insurance company absorbs all investment risk. If you buy a fixed when ready annuity for $200,000 and it pays $1,200 per month, you will receive exactly $1,200 every month for the term you chose — whether that is 20 years or life.

A variable annuity ties your payments to the performance of investments you choose — typically mutual funds or index funds held inside the annuity. If those investments perform well, your payments increase. If they perform poorly, your payments decrease. You bear the investment risk, but you also have the potential for higher returns if markets rise.

Most people buying annuities for income security choose fixed annuities, because the whole point is to eliminate uncertainty. Variable annuities are more complex and carry higher fees.

What happens to your money once you buy an annuity

When you sign an annuity contract, you are transferring ownership of that lump sum to the insurance company. You no longer own it outright. The insurance company owns it, invests it according to the contract terms, and is legally obligated to send you the agreed payments.

If you need access to the full amount before payments are scheduled to begin, most annuities charge a surrender charge — a penalty that can range from 5 to 10 percent of your balance in early years, declining over time. After 7 to 10 years, the surrender charge typically drops to zero. This is why annuities are designed for money you do not plan to touch.

Some annuities allow you to withdraw a small percentage each year (often 10 percent) without penalty, but this is limited. Once you start receiving payments, you cannot stop them or change the amount unless the contract specifically allows it.

Why people buy annuities

The main reason is longevity protection. If you live to 95 and have already spent your savings, an annuity that pays for life keeps sending checks. This is valuable if you are worried about outliving your money or if you have received a one-time windfall you want to stretch across decades.

Annuities also provide payment certainty. Unlike stocks or bonds, where the value fluctuates daily, an annuity payment is fixed and predictable. You know exactly what will arrive on the 15th of each month. This appeals to people who want to eliminate guesswork from their budget.

A third reason is simplicity. Instead of managing a portfolio of investments, monitoring performance, and deciding when to sell, you hand the money over and let the insurance company handle it. For people who do not want to think about investing, this is attractive.

The costs and drawbacks of annuities

Annuities are expensive. Insurance companies charge fees for administration, investment management (on variable annuities), and the mortality risk they assume. These fees are often buried in the contract and not clearly stated as a percentage. On a variable annuity, total annual costs can exceed 2 percent of your balance — far higher than a low-cost index fund.

You also lose liquidity and flexibility. Once payments begin, you cannot easily access your principal. If you change your mind or face an emergency, the surrender charge can be steep. Some annuities allow you to name a beneficiary who receives remaining payments if you die early, but others do not — the insurance company keeps what is left.

Inflation is another hidden cost. A fixed annuity that pays $1,200 per month today will still pay $1,200 in 20 years, even though inflation will have reduced what that money can buy. Some annuities offer inflation adjustments, but these cost more upfront.

How annuity payments are calculated

The insurance company uses three main factors to set your payment amount: your age, your life expectancy (based on mortality tables), and current interest rates.

A 65-year-old will receive larger monthly payments than a 55-year-old who invests the same lump sum, because the insurance company expects to pay the 65-year-old for fewer years. A woman will typically receive smaller payments than a man of the same age, because women have longer average life expectancy. Interest rates matter too — when rates are high, the insurance company can earn more on your money, so it can afford to pay you more.

You cannot negotiate these calculations. The insurance company uses standardized mortality tables and current market rates to arrive at a figure, and that is what you get.

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 cancel and receive a full refund. After that window closes, you can still withdraw, but you will pay a surrender charge that typically ranges from 5 to 10 percent in the first few years. The charge decreases over time and usually reaches zero after 7 to 10 years.

What happens to my annuity if the insurance company fails?

State insurance regulators oversee insurance companies, and most states have a guaranty fund that protects annuity holders if an insurer becomes insolvent. Coverage limits vary by state but are typically $250,000 per person per company. This protection does not cover investment losses on variable annuities — only the insurance company's failure to pay.

Is an annuity the same as a pension?

No. A pension is a benefit your employer provides and funds; you receive payments without having paid a lump sum upfront. An annuity is a product you purchase with your own money. However, some people use annuities to convert a lump-sum pension payout into monthly income, which makes them similar in function.

Do I have to pay taxes on annuity payments?

Yes, but the tax treatment depends on how you funded the annuity. If you used pre-tax retirement account money (like a 401k rollover), the full payment is taxable income. If you used after-tax money, only the earnings portion is taxed, not your original contribution. Consult a tax professional about your specific situation.

Can I use an annuity inside a retirement account?

Yes. You can hold an annuity inside an IRA or 401k. This is called a "may have access to annuity." The tax rules are the same as for any may have access to retirement account — you do not pay taxes until you withdraw, and withdrawals before age 59½ may face penalties. Annuities inside retirement accounts are common but not required.