A period certain is an add-on to a lifetime income payout that promises payments for a set minimum stretch, commonly 5, 10, 15 or 20 years, no matter when the annuitant passes away. If death happens inside that window, a named beneficiary keeps receiving the remaining payments until the window closes.
What is period certain?
Period certain is a safeguard bolted onto an income annuity. It sets a floor on how long payments will run, typically 5, 10, 15 or 20 years, and that floor holds regardless of what happens to the annuitant. Die a month after payments begin, and whoever you named as beneficiary keeps cashing checks for the rest of that guaranteed window.
How period certain works
This feature is almost always paired with a single life annuity, which by itself carries a real weakness: income stops the moment the annuitant dies, even if that happens right after the first payment. A 10-year period certain patches that hole by promising at least 120 monthly checks, even if the annuitant only lives long enough to collect one of them. Once that guaranteed window has passed, the arrangement reverts to paying only for as long as the annuitant is alive.
What period certain costs you
Adding this guarantee shrinks the monthly check, because the carrier has agreed to absorb more downside risk than a plain single life design carries. As a general rule, a period certain adds roughly 5% to 15% to the cost of that income, and the reduction grows as the guaranteed window stretches longer, so a 20-year certain trims more from your check than a 10-year certain does. For many buyers, a 10-year window lands in a sweet spot: meaningful downside protection without giving up too much monthly income. Ask a licensed strategist to run your exact numbers with and without the rider before you decide, since the actual reduction depends on your age, gender and the carrier's own pricing.
Period certain vs. a refund annuity
If your real worry is that your family walks away with less than you put in, rather than a specific number of guaranteed years, a refund annuity may fit better. Both features solve the same underlying fear, an early death cutting the payout stream short, just measured differently: one counts years, the other counts dollars. On a $100,000 premium, a 10-year period certain locks in roughly 120 payments no matter the size of each check, while a cash refund locks in that the running total eventually reaches $100,000, however long that takes at your particular payment amount.
Frequently asked questions
What does period certain mean on an annuity?
It is a guarantee attached to a lifetime payout that keeps payments flowing for a minimum span, often 5, 10, 15 or 20 years, whether or not the annuitant is still alive.
How much extra does a period certain cost?
It lowers the monthly check, typically by roughly 5% to 15%, because the carrier is taking on more risk. A longer guaranteed window, say 20 years instead of 10, trims the check more than a shorter one does.
How is period certain different from a cash refund?
A period certain locks in a number of years of payments. A refund annuity instead locks in a dollar amount, guaranteeing your beneficiary eventually gets back at least your premium. Pick based on whether you care more about years covered or dollars recovered.
Written and reviewed by
James Forren Warren
Licensed Retirement Income Strategist · License #20551202
James Forren Warren is a licensed Retirement Income Strategist with Tax Free Wealth Plan. For the past five years he has helped individuals and families turn their savings into retirement income they can count on. He writes and reviews the annuity research on this site and keeps it plain: what a product does, what it costs you, and who it actually fits.
Educational only, not investment, tax or legal advice. Tax Free Wealth Plan LLC is a licensed insurance agency, not a registered investment adviser or broker-dealer. Annuities are not bank deposits, are not FDIC insured and are not guaranteed by any government agency. Guarantees are backed solely by the claims-paying ability of the issuing insurance company. Features, rates and availability vary by state and change over time; the contract and disclosure documents govern.