A life annuity with a period certain is an insurance contract that pays you regular income for the rest of your life and also guarantees that payments will continue for a set number of years even if you die early. You buy it from an insurance company with a lump sum or a series of premiums. In return, you get a check on a fixed schedule that cannot outlast you, and your named beneficiary receives whatever payments are left in the guaranteed window if you die before it closes.
How the Two Guarantees Fit Together
The contract layers two promises. The first is the period certain: a fixed stretch of years, chosen at purchase, during which the insurer must pay someone every month no matter what. Whether you are alive or your beneficiary is collecting on your behalf, the money keeps moving.
The second promise is the life piece. As long as you are still living when the certain period ends, the same payment keeps arriving on the same schedule for the rest of your life. Nothing about the check changes at that handoff. You don’t sign new paperwork, and the amount stays the same. The contract simply continues until you die.
If You Die During the Certain Period
If you die before the guaranteed window expires, the insurance company redirects the remaining payments to the beneficiary named in your contract. They receive the same dollar amount on the same schedule for whatever time is left. Choose a 15-year certain period and die in year 8, and your beneficiary collects for the remaining 7 years.
If your primary beneficiary has also died, payments go to a contingent beneficiary listed in the contract. Because the money passes through the beneficiary designation rather than through your will, it generally goes directly to the recipient without probate. Once the final guaranteed payment is made, the insurer’s obligation ends.
Federal tax law backs this up. Under 26 U.S.C. § 72(s), if the contract holder dies after payments have started, the remaining interest must be paid out at least as quickly as it was being distributed at the time of death, so the insurer cannot slow the beneficiary’s payments down.1Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts
What Happens Once the Certain Period Ends
After the guaranteed window closes, the contract becomes a pure life annuity. The insurance company keeps paying you for as long as you live, but the safety net for your heirs is gone. If you die a day after the certain period expires, no further payments go to anyone. The contract ends there.
This matters for estate planning. During the certain period, your heirs have a backstop. After it lapses, they don’t. If leaving money behind past the guaranteed window is important to you, a separate life insurance policy or a different annuity structure may fit better.
Choosing a Guarantee Length
Insurance companies typically offer four standard options for the certain period: 5, 10, 15, and 20 years. Ten is the most commonly selected. You pick the length at purchase, and it cannot be changed once payments begin.
A longer certain period means the insurer is on the hook for more years regardless of your lifespan, so it compensates by shrinking each monthly payment. A 5-year guarantee reduces your check the least; a 20-year guarantee reduces it the most. More protection for your beneficiary, less income for you each month. That is the trade-off in one sentence.
The comparison point is a straight life annuity, sometimes called “life only,” which pays income for your lifetime with no guaranteed period at all. If you die a month after payments start, the insurer keeps the balance. Because the insurer takes on less risk, a straight life contract funded by the same premium produces a higher monthly payment than any period-certain version. The exact gap depends on your age, the insurer’s pricing, and current interest rates, but the direction is consistent across providers.
There is no federal age limit on buying an annuity, though individual insurers commonly cap issue ages around 80 to 85 for immediate annuities.
Joint and Survivor Variations
Some contracts combine a period certain with a joint and survivor structure. Payments then continue for as long as either you or a second person, typically a spouse, is alive. Add the period certain and there are three layers: the first annuitant’s life, the survivor’s life, and if both die inside the guaranteed window, a beneficiary collects the rest.
After the certain period ends, the contract reverts to pure joint-life status. If the surviving spouse is still alive, payments continue, often at a reduced percentage such as 50% or 75% of the original amount depending on the contract. If both annuitants have already died and the certain period has also expired, the contract terminates.
How Your Payments Are Taxed
The IRS taxes annuity distributions under 26 U.S.C. § 72. How much of each payment is taxable turns on whether you funded the contract with pre-tax or after-tax money.1Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts
Non-Qualified Annuities
If you bought the annuity with money you already paid income tax on, part of each payment is treated as a return of your original investment and is not taxed again. The IRS uses an exclusion ratio: divide your investment in the contract by the total expected return (anticipated payments multiplied by the payment amount). That fraction is the tax-free share of each check.1Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts
Once you have recovered your full investment, every dollar of every later payment is taxable as ordinary income. The exclusion ratio does not run forever.
Qualified Annuities
If the contract was funded entirely with pre-tax dollars, through a traditional IRA or an employer retirement plan, you never paid tax on the money going in. The full amount of each payment is taxable as ordinary income. There is no exclusion ratio because there is no after-tax investment to recover. Any after-tax contributions inside a qualified plan get a small tax-free share back under a simplified method, but only for that portion.1Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts
How Beneficiaries Are Taxed
When a beneficiary picks up the remaining payments during the certain period, the tax treatment depends on how much of the original investment has already been recovered. Under the General Rule in IRS Publication 575, a beneficiary inheriting payments from a non-qualified annuity applies the same exclusion percentage the original annuitant was using.2Internal Revenue Service. Publication 575 (2025), Pension and Annuity Income
If the beneficiary is receiving only the guaranteed period-certain payments and not life-contingent ones, a different rule applies. The beneficiary excludes each payment from income until the combined tax-free amounts received by the annuitant and the beneficiary together equal the contract’s total cost. After that, all remaining payments are fully taxable.2Internal Revenue Service. Publication 575 (2025), Pension and Annuity Income
Distributions received after the contract holder’s death are generally not subject to the 10% early withdrawal penalty, whatever the beneficiary’s age.3Internal Revenue Service. Topic No. 410, Pensions and Annuities
Getting a Lump Sum After Payments Begin
Once the contract has been annuitized and payments have started, your ability to pull the remaining funds out as a lump sum is very limited. Most contracts do not let you surrender the policy or withdraw a large sum after the payment stream begins. Some include a commutation provision that lets you convert future certain-period payments into a single discounted lump sum, but the amount is set by actuarial present-value formulas and will be less than the total of the remaining scheduled payments.
Whether commutation is available depends entirely on your contract. If lump-sum access after annuitization matters to you, confirm the feature is in the contract before you buy. A lump sum can also accelerate the tax you owe, since a large distribution in a single year can push you into a higher bracket.