How a Life Annuity Works and What You Receive Each Month

A life annuity converts a lump sum into monthly payments that last as long as you live

A life annuity is a contract with an insurance company where you give them a sum of money upfront, and they send you a fixed payment every month for the rest of your life. The payment amount is set when you buy the annuity and does not change. You receive it whether the market goes up or down, whether you live to 85 or 105, and whether interest rates shift.

The insurance company calculates your monthly payment based on three things: how much money you give them, how old you are when you start, and current interest rates. A 65-year-old who puts in $300,000 will receive a different monthly amount than a 75-year-old with the same $300,000, because the 75-year-old has fewer years left statistically, so each monthly payment is larger.

Life annuities are one of the few ways to create income that you cannot outlive. Once you buy one, you stop managing the money yourself — the insurance company handles all of it, and your only job is to cash the check each month.

Key Takeaways

• A life annuity pays you a fixed amount every month for as long as you live, no matter how long that is.
• Your monthly payment is determined by your age, the amount you invest, and interest rates at the time you purchase.
• The payment never increases, so inflation reduces its buying power over time.
• Once you buy a life annuity, you cannot get your original money back or change the payment amount.
• Life annuities are irreversible decisions, so most financial advisors recommend buying them only with money you are certain you will not need for other purposes.

How the payment amount is calculated

Insurance companies use mortality tables — statistical records of how long people typically live at each age — to set your payment. They also factor in the interest rate they expect to earn on your money while they hold it. If you are 70 and put in $250,000, the company estimates how many years you will likely receive payments, then divides your $250,000 by that number of years, plus a margin for their costs and profit.

The exact formula varies by insurance company and by the type of life annuity you choose. A straight life annuity (the simplest form) pays only to you and stops when you die. A life annuity with a may provide period pays your beneficiary a set number of remaining payments if you die before that period ends. A joint life annuity covers two people and continues paying the survivor after one dies, but the monthly amount is lower because the insurance company expects to pay for two lifespans instead of one.

You cannot shop for the best rate the way you would for a mortgage. Each insurance company sets its own rates based on its own costs and risk assessment. If you are considering a life annuity, comparing quotes from three to five insurers is standard practice, because the monthly payment can differ by 10 to 15 percent between companies.

What happens to your money after you buy

Once you hand over your lump sum and sign the contract, that money belongs to the insurance company. You no longer own it, cannot withdraw it, and cannot pass it to your heirs if you die the month after you buy the annuity (unless you chose a may provide period or joint option). This is the trade-off for receiving payments you cannot outlive: you give up access to the principal.

The insurance company invests your money in bonds, mortgages, and other fixed-income securities. The returns from those investments help fund your monthly payments. If the company's investments perform better than expected, you do not see the benefit — your payment stays the same. If investments perform worse, the company absorbs the loss, and your payment still stays the same. This is why a life annuity is called a may provide income product: the may provide comes from the insurance company's promise to pay, not from the performance of any investment.

The insurance company is required to hold reserves to back up its promises. In the United States, state insurance regulators oversee these reserves, and each state has a guaranty fund that protects annuity holders if an insurance company fails. The protection limit varies by state but is typically $250,000 per person per company.

The difference between life annuities and other retirement income sources

A life annuity is different from a pension because you buy it yourself with your own money, whereas a pension is typically funded by an employer. Both provide fixed monthly income for life, but a pension is managed by the employer or a pension fund, while a life annuity is managed by an insurance company you choose.

A life annuity is different from a regular investment account because the payment is fixed and may provide, whereas investment returns vary. If you keep $300,000 in a brokerage account, you might withdraw $1,500 one month and $2,000 the next, depending on what you need and what the market does. With a life annuity, you receive the same $1,500 (or whatever amount you agreed to) every single month.

A life annuity is different from a variable annuity because the payment changes with market performance. In a variable annuity, your monthly income goes up if the underlying investments perform well and down if they perform poorly. In a life annuity, the payment is locked in and never changes.

Inflation and the fixed payment problem

The biggest drawback to a life annuity is that your payment does not increase with inflation. If you buy a life annuity at 65 and receive $2,000 per month, you will still receive $2,000 per month at 85, even though $2,000 buys far less in groceries, medicine, and utilities than it did 20 years earlier.

Some insurance companies offer inflation-adjusted annuities where the payment increases by a set percentage each year (often 2 or 3 percent) or by the actual inflation rate. These annuities start with a lower initial payment than a straight life annuity, because the insurance company expects to pay more in later years. Whether the trade-off makes sense depends on your age, your other income sources, and how much inflation concerns you.

You can also buy a life annuity with a smaller initial payment and keep some of your money in investments that might grow faster than inflation. This approach gives you some may provide income plus some growth potential, but it requires you to manage part of your money yourself.

When people typically buy life annuities

Life annuities are most common among people in their late 60s and 70s who have accumulated a lump sum — either from a retirement account withdrawal, an inheritance, the sale of a business, or a pension payout option. They are also used by people who have received a structured settlement from a lawsuit and want to convert it into monthly income.

Some people buy a small life annuity to cover essential expenses (rent, utilities, food, medicine) and keep the rest of their money in investments for flexibility and growth. Others buy a larger annuity to cover most of their retirement spending and rely on Social Security for the remainder. The decision depends on how much may provide income you need, how much money you have, and how comfortable you are with market risk.

Life annuities are rarely bought by people in their 50s, because the monthly payment is lower when you are younger and have more years ahead. They are also rarely bought by people who expect to need access to their money for emergencies or major expenses, because once you buy an annuity, that money is gone.

Irreversibility and the decision to buy

A life annuity is permanent. You cannot change your mind, get your money back, or adjust the payment if your circumstances change. If you buy a $300,000 life annuity and then face an unexpected medical bill or family emergency, you cannot withdraw from the annuity to cover it. You can only receive your monthly payment.

Some annuities allow you to name a beneficiary who receives a lump sum if you die within a certain period (such as 10 years). Others allow you to take a reduced payment in exchange for the right to withdraw money in emergencies. These options lower your monthly payment, so the trade-off is between higher may provide income and access to your principal.

Because of this permanence, financial advisors typically recommend buying a life annuity only with money you are confident you will not need for other purposes, and only after you have built an emergency fund separate from the annuity. You should also understand your other income sources (Social Security, pensions, part-time work) before deciding how much to annuitize.

Frequently Asked Questions

What happens to my life annuity payments if I move to another country?

Most life annuities purchased in the United States continue to pay even if you move abroad, though some insurance companies have restrictions on certain countries. You should confirm the company's policy before you buy. Payments are typically sent by wire transfer or check to a U.S. bank account, and you may face tax reporting requirements in both the U.S. and your new country.

Can I buy a life annuity with money from a retirement account like an IRA or 401(k)?

Yes. You can withdraw money from a traditional IRA or 401(k) and use it to buy a life annuity. The withdrawal is taxable as ordinary income in the year you make it. You can also buy a life annuity directly within an IRA or 401(k) using a feature called a may have access to longevity annuity contract (QLAC), which has special tax rules and contribution limits.

How is the income from a life annuity taxed?

If you buy the annuity with after-tax money, part of each payment is a return of your principal (not taxed) and part is earnings (taxed as ordinary income). The insurance company calculates the split using your life expectancy at the time of purchase. If you buy with pre-tax retirement account money, the entire payment is taxed as ordinary income. Consult a tax professional for your specific situation.

What if the insurance company goes out of business?

State insurance regulators require insurance companies to maintain reserves to back annuity payments. If a company fails, your state's insurance guaranty fund typically covers your annuity up to a limit (often $250,000). This protection is automatic; you do not need to do anything. However, if your annuity exceeds the limit, the excess may not be fully protected.

Is a life annuity the same as an annuity I buy inside a retirement account?

No. A life annuity is a specific type of insurance contract that pays for life. Inside a retirement account, you might buy a variable annuity (payments vary with investments), a fixed annuity (fixed payment but not necessarily for life), or a life annuity (fixed payment for life). The tax treatment and rules differ depending on whether the annuity is inside or outside a retirement account.