An annuity period is a defined span of time during which an annuity contract is either growing in value or making regular payments to you. The term can refer to two distinct phases: the accumulation period, when you’re putting money in and your balance grows tax-deferred, or the payout period, when the insurance company sends you regular income. It can also refer to a specific guaranteed timeframe, called a “period certain,” during which payments are made regardless of whether you’re still alive.
The Two Main Phases of an Annuity
Every deferred annuity moves through two stages, and both are commonly called “annuity periods.”
The accumulation period is the stretch of time between when you start paying premiums and when income payments begin. During this phase, your money grows tax-deferred, meaning you won’t owe income tax on gains until you withdraw them. With a fixed annuity, the insurance company credits your account at interest rates spelled out in the contract. With a variable annuity, your premiums go into a separate investment account, and your balance rises or falls with the performance of those underlying investments.
The payout period (also called the annuitization phase) begins when you convert your accumulated value into a stream of income. For a fixed annuity, the dollar amount of each payment is locked in when payments start and doesn’t change. For a variable annuity, payments can fluctuate based on how the investments in your account perform. One critical detail: once you choose a payout option and payments begin, that choice is generally permanent. You can’t switch to a different structure later.
What “Period Certain” Means
When people search for “annuity period,” they’re often trying to understand a period certain, which is a guaranteed payment window built into some annuity contracts. You choose a specific number of years, commonly 10, 15, or 20, and the insurance company guarantees payments for that entire span. If you die before the period ends, your beneficiary receives payments for the remaining years.
For example, if you select a 15-year period certain and die 10 years in, your beneficiary collects the final five years of payments. This guarantee makes the period certain option attractive if you want to ensure that your money isn’t lost simply because you die earlier than expected.
A period certain annuity differs from a straight life (or “pure”) annuity, which pays income only for as long as you’re alive. When you die, payments stop completely with no benefit to heirs. In exchange for that risk, a straight life annuity pays the highest periodic amount for a given premium because the insurance company isn’t guaranteeing payments to anyone else.
Other Payout Structures
Insurance companies offer several variations that blend lifetime income with guaranteed periods or coverage for a spouse.
Life annuity with period certain: You receive payments for the rest of your life, but the contract also guarantees a minimum number of years (often 10 or 20). If you die within that guaranteed window, your beneficiary receives the remaining payments. Because of this added protection, each payment is smaller than what a straight life annuity would provide for the same premium.
Joint and survivor annuity: Payments continue until the last covered person dies, typically you and a spouse. Some contracts reduce the payment amount after the first person dies, while others keep it the same. This option costs more or pays less per period than a single-life annuity because the insurance company is covering two lifetimes.
What Determines Payment Size
The amount you receive during each annuity period depends on several interconnected factors. Your age at the time payments begin matters most: the older you are, the higher each payment, because the insurance company expects to make fewer total payments. The size of your accumulated balance (or the lump sum you use to purchase the annuity) directly scales the income. Prevailing interest rates also play a significant role, since annuity rates tend to rise and fall alongside broader market rates.
Your health, the type of payout structure you choose, and whether you add features like inflation adjustments or survivor benefits all influence the final number. A level annuity that pays the same amount every year will start higher than one that increases with inflation, but the inflation-adjusted version protects your purchasing power over a long retirement.
To put it simply: if you spent $100,000 on an annuity with a 5% payout rate, you’d receive $5,000 per year. At a 2% rate, that same $100,000 would generate only $2,000 per year.
How Annuity Payments Are Taxed
Not every dollar you receive during the payout period is taxable. Part of each payment is considered a return of your own money (the premiums you paid in), and part is investment earnings. The IRS uses what’s called an exclusion ratio to split each payment into its tax-free and taxable portions.
The calculation works like this: divide your total investment in the contract (the premiums you paid, minus any tax-free amounts you already received) by your expected return (the total payments you’re projected to receive over the life of the annuity). That ratio is your exclusion percentage. Multiply it by each payment to find the tax-free portion, and the remainder is taxable income.
For a fixed-period annuity, the expected return is straightforward: multiply the number of payments by the amount of each payment. For a life annuity, the IRS uses life expectancy tables to estimate how many payments you’ll receive. Once you’ve recovered your full investment (all the premiums you originally paid), every payment after that point is fully taxable. If your annuity start date is after 1986, the total amount you can exclude over your lifetime cannot exceed your net cost in the contract.
What Happens If You Die During the Annuity Period
The answer depends entirely on which payout option you selected and when death occurs.
If you die during the accumulation period, before any payments have started, most annuities pay a death benefit to your named beneficiary. This benefit is typically the current value of your annuity or the total premiums you paid, whichever is greater.
If you die during the payout period with a straight life annuity, payments simply stop. No money goes to heirs. If you chose a period certain or life with period certain option, your beneficiary receives payments for whatever time remains in the guaranteed period. With a joint and survivor annuity, payments continue to the surviving person until they also die.
Choosing between these options is one of the most consequential decisions in annuity planning. A straight life annuity maximizes your personal income but leaves nothing behind. A period certain or joint-and-survivor structure provides a safety net for the people who depend on you, but each payment will be smaller as a result.