Most people understand the basic idea of an immediate annuity: you hand over a lump sum, and the insurance company starts sending you a monthly check right away. A deferred income annuity works on the same fundamental principle, with one important difference. You buy it now, but the income does not start until a date you choose in the future, sometimes years or even decades away.
That time gap is not a drawback. For many pre-retirees, it is precisely the point.
What a DIA Is and How It Works
A deferred income annuity (DIA) is a contract between you and an insurance company. You make a lump-sum payment (or in some cases, a series of payments) today, and in exchange, the insurer promises to pay you a guaranteed monthly income beginning at a future date you specify at the time of purchase.1
The income start date can be as soon as 13 months from purchase or as far out as 30 or 40 years, depending on the carrier and your age. Most buyers choose a start date that aligns with their planned retirement date or a specific age milestone, such as 70, 75, or 80.2
During the period between purchase and the income start date (called the deferral period), your money is not sitting in a separate account earning a stated interest rate. You do not have an account balance to check. Instead, the insurance company is holding your premium and using the deferral period to calculate the income it can afford to guarantee you. The longer the deferral, the higher the eventual monthly payment, because the insurer has more time to invest your premium and more actuarial certainty about when payments will actually begin.3
This is the core trade-off: you give up liquidity and flexibility in exchange for a larger guaranteed income stream later.
How a DIA Differs from a SPIA
A Single Premium Immediate Annuity (SPIA) and a DIA are structurally similar products. Both convert a lump sum into a guaranteed lifetime income stream. The difference is timing.
With a SPIA, income begins within 30 days to one year of purchase. With a DIA, income begins at a future date you choose, which must be at least 13 months from purchase.1
Because of the longer deferral, a DIA typically produces a higher monthly payment per dollar of premium than a SPIA purchased at the same age. A 60-year-old who buys a DIA with income starting at age 70 will receive a significantly larger monthly payment than if they had purchased a SPIA at age 60 and started income immediately. The insurance company has had 10 additional years to invest the premium, and the actuarial tables reflect a shorter expected payment period (since the buyer is now 10 years older when income begins).3
This makes the DIA an efficient tool for people who want to guarantee a specific income level at a specific future age, without needing to manage the money themselves in the interim.
The Longevity Insurance Use Case
One of the most compelling applications of a DIA is what financial planners sometimes call "longevity insurance." The idea is to use a relatively small premium to guarantee a large income stream starting at an advanced age, such as 80 or 85, as a hedge against outliving your other assets.
Here is the logic. If you retire at 65 with a $1,000,000 portfolio, you face roughly 30 years of potential spending. The standard 4% withdrawal rule suggests you can spend $40,000 per year with a reasonable probability of not running out of money. But that rule assumes a 30-year horizon. If you live to 95, the math gets uncomfortable.
One approach: use a portion of your portfolio (say, $100,000 to $150,000) to purchase a DIA with income starting at age 80 or 85. That removes the longevity tail risk from your planning equation. You now only need your portfolio to last from age 65 to 80, a 15-year horizon rather than a 30-year one. The 4% rule becomes far more conservative over 15 years than over 30. And if you live past 80, the DIA kicks in and provides income for as long as you live.2
The trade-off is that if you die before the income start date, you generally receive nothing (unless you have selected a return-of-premium or period-certain option, which reduces the monthly payment). This is the "longevity insurance" framing: like any insurance, you hope you do not need it, but you are glad it is there if you do.
DIAs and the QLAC Option
A Qualified Longevity Annuity Contract (QLAC) is a specific type of DIA that can be funded with money from a traditional IRA or eligible employer-sponsored plan (such as a 401(k) or 403(b)).4
The SECURE 2.0 Act (effective January 2023) allows you to use up to $200,000 from your IRA to purchase a QLAC, and those funds are excluded from required minimum distribution (RMD) calculations until the income start date (which can be deferred to as late as age 85).4
This creates a meaningful tax planning opportunity. If you have a large IRA and you are concerned about RMD-driven tax spikes in your 70s and 80s, moving up to $200,000 into a QLAC removes that amount from your RMD base for potentially 10 to 15 years, while simultaneously guaranteeing a large income stream later in life when you may need it most.
The QLAC is not appropriate for everyone. The $200,000 cap limits its impact for very large IRAs, and the illiquidity trade-off is the same as with any DIA. But for the right client, it addresses two problems at once: RMD management and longevity income.
Who Is a DIA Best Suited For?
Fidelity's research suggests that DIAs tend to be most beneficial for pre-retirees between the ages of 55 and 65 who are planning to retire in 5 to 10 years.3 This profile makes sense: the deferral period is long enough to generate a meaningfully higher payment than an immediate annuity, but not so long that the buyer is taking on excessive mortality risk (the risk of dying before income begins).
More broadly, a DIA is worth considering for anyone who is concerned about outliving their assets and wants a guaranteed income floor that does not depend on portfolio performance, who has a pension or Social Security income that covers essential expenses but wants additional guaranteed income starting at a later age, or who wants to simplify their retirement income plan by locking in a portion of future income now rather than managing it through portfolio withdrawals.
A DIA is generally not appropriate for people who need access to the premium in the near term, who have significant health concerns that reduce their expected lifespan, or who are not comfortable with the illiquidity that comes with any income annuity.
The Incremental Purchase Strategy
One feature that distinguishes many DIAs from immediate annuities is the ability to make additional premium payments before the income start date.3 Each additional payment is subject to the interest rates in effect at the time of that payment, which means you can build your future income stream incrementally over several years.
This approach has a practical advantage: it allows you to stagger your purchases across different interest rate environments, similar to the concept of dollar-cost averaging in investing. If rates rise after your initial purchase, your subsequent payments benefit from the higher rate environment. If rates fall, your earlier purchases are locked in at the higher rate.
For pre-retirees who have 5 to 10 years before their target income start date, this incremental strategy can be a more comfortable way to build toward a guaranteed income floor than committing a large lump sum all at once.
What Happens to Your Money If You Die Early
This is the question most people ask first, and it is a legitimate concern. If you purchase a DIA with a "life only" payout option and you die before the income start date, the insurance company keeps your premium. You receive nothing, and neither does your estate.
This outcome is what makes the monthly payment so high relative to the premium. The insurance company is pooling mortality risk across thousands of contract holders. Those who die early subsidize the payments for those who live long.
If this trade-off is unacceptable, most carriers offer alternatives. A "return of premium" option refunds your original premium to your beneficiaries if you die before the income start date, or before you have received back your full premium in payments. A "period certain" option guarantees payments for a minimum number of years (commonly 10 or 20), so your beneficiaries receive the remaining payments if you die early.
Both options reduce the monthly payment compared to a life-only contract. The reduction reflects the cost of the added protection. Whether the trade-off is worth it depends on your financial situation, your estate planning goals, and your comfort with the underlying mortality risk.
References
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Footnotes
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FINRA. "Deferred Income Annuities: Plan Now for Payout Later." July 15, 2022. https://www.finra.org/investors/insights/deferred-income-annuities ↩ ↩2
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AnnuityAdvantage. "Deferred Income (Longevity) Annuities: Who Should Consider Them?" https://www.annuityadvantage.com/blog/what-are-deferred-income-longevity-annuities-and-who-should-consider-them/ ↩ ↩2
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Fidelity Investments. "Retirement Income with Deferred Income Annuities." October 23, 2024. https://www.fidelity.com/viewpoints/retirement/deferred-income-annuities ↩ ↩2 ↩3 ↩4
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Fidelity Investments. "QLACs: A Way to Secure Retirement Income Later in Life." https://www.fidelity.com/viewpoints/retirement/QLAC-qualified-longevity-annuity-contract ↩ ↩2