How a Variable Annuity Works: Linking Your Payouts to Investment Performance

What a variable annuity is and how the payout changes

A variable annuity is an insurance contract where the amount you receive each month depends on how well the investments inside it perform. Unlike a fixed annuity, which pays the same amount forever, a variable annuity's payout rises or falls based on the value of the underlying investment accounts you choose.

You give money to an insurance company upfront (called the accumulation phase). The company invests that money in options you select — typically mutual fund-like portfolios. During this time, your account grows tax-deferred. When you're ready to start receiving payments (the annuitization phase), the insurance company calculates your monthly or annual payout based on your account balance at that moment. If your investments have grown, your payout is larger. If they've declined, your payout is smaller.

The key difference from a fixed annuity: your payment amount is not locked in. It fluctuates throughout your retirement based on market performance, which means you have more upside potential but also more risk.

Key Takeaways

• Your monthly payout in a variable annuity changes based on how the underlying investments perform, so you share both gains and losses with the insurance company.
• You choose from investment options (usually subaccounts similar to mutual funds) during the accumulation phase, before you start receiving payments.
• Variable annuities charge ongoing fees for insurance, administration, and investment management, which can range significantly depending on the contract.
• Once you annuitize and start receiving payments, you typically cannot change your investment choices or stop the payments without penalties.
• Variable annuities offer tax-deferred growth, but withdrawals before age 59½ may trigger a 10% penalty plus income tax on the earnings portion.

The accumulation phase: building your account value

When you first purchase a variable annuity, you enter the accumulation phase. You deposit a lump sum or make regular contributions, and the insurance company holds that money in separate investment accounts called subaccounts. These subaccounts function like mutual funds — they invest in stocks, bonds, or a mix of both depending on which ones you select.

You control which subaccounts receive your money. Some variable annuities offer dozens of choices, ranging from aggressive stock-focused funds to conservative bond funds. Your account value grows (or shrinks) based on the performance of these investments. Importantly, you do not pay income tax on the gains during this phase — the growth is tax-deferred, which is one of the main reasons people buy annuities.

You can typically move money between subaccounts without triggering a tax event, allowing you to adjust your investment mix as your goals or market conditions change. However, some contracts limit how often you can make these moves.

How the payout is calculated when you annuitize

When you decide to start receiving income — usually in retirement — you annuitize the contract. The insurance company takes your account balance at that moment and uses it to calculate your monthly or annual payment. The calculation also factors in your age, life expectancy, and the payout option you choose (for example, payments for life, or payments for life with a may provide that your beneficiary receives a minimum amount).

Here is a concrete example: suppose your variable annuity account is worth $300,000 when you annuitize at age 65. The insurance company might calculate that you receive $1,200 per month for life. But if your investments had performed poorly and your account was only worth $250,000, your monthly payment might be $1,000 instead. The better your investments performed during accumulation, the higher your starting payout.

Once annuitization begins, your payment amount is recalculated periodically — usually monthly or quarterly — based on the current value of your account. If markets rise, your next payment rises. If markets fall, your next payment falls. This is the core feature that distinguishes a variable annuity from a fixed annuity, where the payment never changes.

Investment options and subaccount choices

Variable annuities typically offer a range of subaccounts, and you decide how to split your money among them. Common options include stock funds (domestic and international), bond funds, money market funds, and balanced funds that mix stocks and bonds. Some contracts also offer index-based subaccounts that track market indexes like the S&P 500.

Your choice of subaccounts directly affects your account growth and, later, your payout amount. A more aggressive allocation (heavier in stocks) has higher growth potential but also higher volatility — your account value and payments will swing more with market swings. A conservative allocation (heavier in bonds) is more stable but typically grows more slowly.

You can usually rebalance your subaccount allocation without tax consequences, though some contracts limit the frequency of changes. This flexibility allows you to shift your strategy as you approach retirement or as your risk tolerance changes.

Fees and costs you need to know about

Variable annuities charge several layers of fees. The mortality and expense (M&E) risk charge is an annual fee (typically 0.5% to 1.5% of your account value per year) that covers the insurance company's costs and profit. On top of that, each subaccount charges its own investment management fee, similar to a mutual fund expense ratio. These typically range from 0.3% to 1% per year, depending on the fund.

Many variable annuities also include optional riders — add-on features that provide guarantees or additional benefits. Common riders include a may provide minimum income rider (which promises a minimum payout even if markets crash) or a death benefit rider (which guarantees your beneficiary receives at least your original investment). Each rider adds an annual cost, sometimes 0.5% to 1% or more.

Additionally, if you withdraw money during the accumulation phase before age 59½, you typically face a 10% federal penalty on the earnings portion, plus income tax. Many contracts also impose a surrender charge — a penalty for withdrawing more than a small amount (often 10% per year) during the first 5 to 10 years of the contract. These charges decline over time and eventually disappear.

The total cost of a variable annuity can easily exceed 2% per year when you add the M&E charge, subaccount fees, and riders. Over decades, these fees significantly reduce your account growth compared to a lower-cost investment account.

What happens after you start receiving payments

Once you annuitize and begin receiving payments, your flexibility decreases. You cannot stop the payments or change the payout option without surrendering the contract, which typically means paying a surrender charge. Your investment choices are also locked in — you cannot add new money or change how your existing account is invested in most contracts.

Your payment amount adjusts based on subaccount performance, so you remain exposed to market risk. If stock markets crash, your payment drops. If markets recover, your payment rises. This ongoing variability is why the product is called a "variable" annuity — your income is not fixed or may provide (unless you purchased a rider that guarantees a minimum).

If you die before recovering your original investment, your beneficiary typically receives the remaining account balance (or the death benefit amount if you purchased that rider). The exact payout to your beneficiary depends on the payout option you selected when you annuitized.

Variable annuities versus fixed annuities and other retirement tools

A fixed annuity pays the same amount every month for life, regardless of market performance. You have no investment risk, but you also have no upside if markets perform well. A variable annuity gives you the potential for higher payments if your investments succeed, but you bear the investment risk yourself.

A deferred income annuity (DIA) is a simpler product: you pay a lump sum now and receive may provide payments starting at a future date. It offers certainty but no investment choices or flexibility.

Compared to straightforward holding stocks and bonds in a regular investment account, a variable annuity offers tax-deferred growth but charges higher fees and restricts your access to the money. A regular brokerage account gives you more flexibility and typically lower costs, but you pay taxes on gains each year.

Frequently Asked Questions

Can I get my money back if I change my mind after buying a variable annuity?

Most states require a "free look" period of 10 to 14 days after purchase, during which you can return the contract for a full refund. After that window closes, you can withdraw money, but you will owe income tax on the earnings portion plus a 10% federal penalty if you are under 59½. You may also owe a surrender charge if the contract is still in its surrender period, which typically lasts 5 to 10 years.

What if I die before I annuitize?

Your beneficiary receives the account balance at your death (or a may provide minimum if you purchased a death benefit rider). The exact amount depends on your contract terms. If you have already annuitized and chosen a life-only payout, payments stop and your beneficiary receives nothing unless you selected an option that continues payments to them.

Can I change my investment choices after I annuitize?

In most variable annuities, once you annuitize and start receiving payments, you cannot change your subaccount allocation. Your investment choices are locked in. Some contracts offer limited flexibility, so check your specific contract terms.

How is a variable annuity taxed?

During accumulation, your account grows tax-deferred — you pay no tax on gains until you withdraw. When you withdraw or receive annuity payments, the earnings portion is taxed as ordinary income. The portion of each payment that represents your original contribution (called "basis") is not taxed again. Withdrawals before age 59½ trigger a 10% penalty on the earnings portion.

Is a variable annuity a good choice for retirement?

Variable annuities work best for people who want may provide lifetime income but also want the potential for higher payments if investments perform well, and who can afford the ongoing fees. They are more complex and expensive than simpler alternatives like fixed annuities or regular investment accounts. Consider consulting a financial professional to determine whether a variable annuity fits your specific situation.