How an Annuity Works: From Purchase to Payouts

What happens when you buy an annuity

An annuity is a contract between you and an insurance company. You give the company a lump sum of money (or make payments over time), and in return, the company promises to send you regular payments for a set period or for the rest of your life. The insurance company invests your money and uses the returns, along with what other customers pay in, to fund those promised payments to you.

The money you hand over is called the principal. How much you can put in depends on the type of annuity and your age. There are no annual contribution limits the way there are with IRAs or 401(k)s — you can invest as much as you want in a single year. The insurance company holds this money in a separate account and begins crediting it with interest or investment returns, depending on the annuity type.

Once you own the annuity, you enter what's called the accumulation phase. During this time, your money grows tax-deferred, meaning you don't pay income tax on the earnings each year. You only pay tax when you withdraw money or when the annuity starts sending you payments.

Key Takeaways

• You pay an insurance company a lump sum or series of payments, and they promise to send you regular income later, either for a fixed period or for life.
• Your money grows tax-deferred during the accumulation phase, and you pay income tax only when you receive payments.
• Fixed annuities pay a may provide amount each month; variable annuities pay based on investment performance; indexed annuities pay based on a stock market index.
• You can start receiving payments when ready (when ready annuity) or delay them until later (deferred annuity).
• Withdrawing money before a set age (usually 59½) may trigger a penalty, and the insurance company may charge surrender fees if you exit early.

The three main types and how they pay differently

A fixed annuity pays you the same amount every month for as long as the contract specifies. The insurance company guarantees this payment amount when you buy the annuity, regardless of how the economy performs. If you buy a fixed annuity at age 65 and choose a 20-year payout, you'll receive the same monthly check for exactly 20 years. If you choose a lifetime payout, the checks continue for as long as you live.

A variable annuity ties your payments to the performance of investments you choose — typically mutual funds within the annuity. If those investments earn 8 percent in a given year, your payment may increase. If they lose 5 percent, your payment may decrease. You bear the investment risk, but you also have the potential for higher returns. The insurance company still guarantees a minimum payment in some cases, depending on the contract terms.

An indexed annuity (also called an equity-indexed annuity) links your returns to a stock market index like the S&P 500, but with a cap. If the index rises 10 percent but your annuity has a 6 percent cap, you earn 6 percent. If the index falls, many indexed annuities may provide you won't lose money — you earn zero that year instead. This sits between the safety of fixed annuities and the upside potential of variable annuities.

when ready versus deferred annuities

An when ready annuity begins paying you within one year of purchase, usually within 30 days. You hand over a lump sum, and the insurance company starts sending checks right away. People typically buy when ready annuities when they've just retired and want to convert savings into may provide income when ready. Because the payout period is short, the monthly payment is higher than it would be with a deferred annuity.

A deferred annuity delays payments until a future date you choose — perhaps 10 years, 20 years, or when you reach a certain age. Your money continues to grow during the waiting period. When the payout phase finally begins, your monthly payment reflects both your original principal and all the growth that accumulated. Deferred annuities are common inside retirement accounts like 401(k)s and IRAs, where people want tax-deferred growth now and income later.

How the payout phase works

When your annuity reaches the date you chose, it enters the payout phase (also called the annuitization phase). The insurance company calculates your monthly payment based on your age, the contract terms, and the total value of your account. The calculation uses actuarial tables — essentially, the insurance company estimates how long you're likely to live and divides your account balance by the number of months you're expected to receive payments.

You can choose how you want to receive payments. A life annuity pays you for as long as you live, no matter how long that is. A period-certain annuity pays for a fixed number of years (say, 20 years), and if you die before the period ends, your beneficiary receives the remaining payments. A joint-and-survivor annuity continues paying your spouse or another beneficiary after you die, usually at a reduced rate. Each choice affects the monthly payment amount — longer payment periods mean smaller monthly checks.

Once payments begin, each check includes a portion of your original principal (which is not taxed) and a portion of earnings (which is taxed as ordinary income). The insurance company provides a statement showing how much of each payment is principal and how much is earnings, so you know what to report on your tax return.

Fees, surrender charges, and early withdrawal penalties

Annuities often carry costs that reduce your returns. A surrender charge is a fee the insurance company charges if you withdraw money or cancel the contract within a set period — typically 5 to 10 years after purchase. If you surrender a $100,000 annuity in year 3 of a 7-year surrender period, you might pay 5 percent ($5,000) to exit. This charge decreases each year and eventually disappears.

If you withdraw money before age 59½, the IRS imposes a 10 percent early withdrawal penalty on the earnings portion (not on your principal). This is separate from any surrender charge the insurance company levies. For example, if you withdraw $50,000 from a deferred annuity at age 55, and $15,000 of that is earnings, you owe a $1,500 IRS penalty plus whatever surrender charge applies.

Variable and indexed annuities may also charge annual management fees, mortality and expense fees (M&E fees), or administrative fees. These are typically 0.5 to 2 percent of your account value per year. Fixed annuities usually have no annual fees, though they may charge a fee to set up the contract. Always ask the insurance company for a complete fee schedule before you buy.

Tax treatment during accumulation and payout

During the accumulation phase, you pay no annual income tax on the growth inside the annuity. If you invest $50,000 and it grows to $75,000 over five years, you owe no tax on that $25,000 gain until you withdraw it or start receiving payments. This tax deferral is one of the main reasons people use annuities outside of retirement accounts.

When you begin receiving payments, the tax picture changes. The portion of each payment that represents your original principal is not taxed — you already paid tax on that money when you earned it. The portion that represents earnings is taxed as ordinary income at your marginal tax rate. The insurance company uses an exclusion ratio to calculate how much of each payment is principal versus earnings. This ratio is fixed for the life of the annuity, even if your account balance changes.

If you own an annuity inside a traditional IRA or 401(k), the entire payment is taxed as ordinary income when you withdraw it, because the original contribution was tax-deductible. If the annuity is inside a Roth IRA, may have access to withdrawals are tax-free. The account type matters more than the annuity type for tax purposes.

What happens if you need money before the payout date

If you own a deferred annuity and need to access your money before the payout phase begins, you have options, but they come with costs. You can withdraw money, but you'll likely pay a surrender charge (which decreases over time) and possibly an IRS early withdrawal penalty if you're under 59½. Some annuities allow you to withdraw a small percentage each year — often 10 percent — without a surrender charge, though the IRS penalty may still explore.

A few annuities offer a liquidity rider or free withdrawal provision that lets you access a portion of your money without surrender charges. These riders cost extra when you buy the annuity, but they provide flexibility. Some annuities also allow you to take a loan against your account value, though you'll pay interest on the loan.

Once the payout phase begins and you're receiving regular payments, you cannot typically stop them or withdraw the remaining balance in a lump sum. The money is locked into the payment schedule you chose. This is why choosing the right payout option — life, period-certain, or joint-and-survivor — matters before you annuitize.

Frequently Asked Questions

Can I change my mind after I buy an annuity?

Most states have a free-look period, usually 10 to 30 days, during which you can cancel the annuity and get your money back with no penalty. After that window closes, you can still withdraw money, but you'll pay a surrender charge if you're within the surrender period. Once you begin receiving payments, you cannot reverse the annuitization.

What if I die before the payout phase begins?

Your beneficiary receives the account value at your death. If you die during the accumulation phase of a deferred annuity, your beneficiary gets the full balance (principal plus all growth). The insurance company sends this as a lump sum or in installments, depending on the contract and your beneficiary's choice.

How is an annuity different from a CD or bond?

A CD or bond pays interest on your money, but you own the principal and can withdraw it anytime (though a CD may charge an early withdrawal penalty). An annuity is a contract where you exchange your principal for a stream of payments. Once you annuitize, you cannot get the lump sum back — you receive only the monthly payments the contract promises.

Do I have to annuitize a deferred annuity, or can I just withdraw the money?

You can withdraw the money without annuitizing. You'll pay income tax on the earnings portion and possibly a surrender charge if you're within the surrender period, but you keep control of the balance. Annuitization is optional — it's straightforward one way to use the money you've accumulated.

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 typically protect up to $250,000 per person per insurer. Check your state's insurance department website to understand the protection level in your state.