The decision at the center of this story is one financial planners see often: a retiree moves $300,000 from an existing IRA into a variable or fixed annuity held inside that same IRA, with the pitch centered on tax deferral. The problem is structural, as an IRA already provides tax deferral. Wrapping an annuity inside an IRA duplicates a benefit the account already provides and adds a fee layer on top of one that already exists, during a period when risk-free yields are the highest they have been in over a year.
This article looks at the arithmetic of that decision using current benchmark rates, the size of the U.S. annuity and IRA markets, and the average IRA balance by generation. The purpose is to help readers evaluate a common sales pitch against the alternatives available in the same account.
The Double Tax-Deferral Problem
Investment growth sheltered from annual taxation is what an IRA provides, and so does an annuity. Placing the second inside the first duplicates a benefit the account already provides. According to the Investment Company Institute, IRAs held $18.9 trillion in assets as of the third quarter of 2025, while annuity reserves outside retirement accounts totaled $2.6 trillion. The overlap between the two products is where fees quietly accumulate. Annuity contracts often carry mortality and expense charges, administrative fees, rider costs, and underlying subaccount expenses that can range from below 1% to well above 3% annually, depending on the contract.
More meaningful in 2026 than in previous years is the reason this matters, because safe alternatives now pay meaningful yields. The 10-year Treasury closed at 4.70% on August 11, 2026, near its 12-month high of 4.75%. The Federal Funds upper bound sits at 3.75%, unchanged since December 11, 2025. When guaranteed rates are this available, every basis point of contract fees represents a direct subtraction from what the same dollars could earn elsewhere inside the same IRA.
What the Fees Actually Cost
What the $300,000 could earn in comparable low-risk instruments held directly inside the IRA is worth considering. A 52-week Treasury bill currently yields 4.02%, while the 26-week yields 3.95%. I-bonds carry a composite rate of 4.26% through October 2026, combining a 0.9% fixed component with a 1.67% semi-annual inflation adjustment. The national average 12-month CD rate is 1.68% as of July 2026, though online banks routinely pay several times that.
Against a Treasury yield of 4.02% and no fees, an annuity charging even 1.5% in combined contract expenses converts a market-yielding portfolio into something closer to a low-yielding one, with a surrender schedule attached. The tax deferral being paid for was already free inside the IRA.
How This Fits the Average Retirement Balance
The $300,000 in this scenario is larger than most Americans have in their IRAs. Fidelity’s Q3 2025 data show an average IRA balance of $257,002 for Baby Boomers, $103,952 for Gen X, and $25,109 for Millennials. A single-contract annuity purchase can therefore represent the entire IRA for many households, concentrating fee drag on the full balance rather than a slice of it.
There were 559,181 IRA millionaires in Q3 2025, a group that can absorb annuity fees more easily than the median saver. For most account holders, however, the fee burden lands on a balance that is not designed to spare it.
The Analytical Takeaway
There are legitimate reasons to buy an annuity. Guaranteed lifetime income, longevity risk transfer, and predictable cash flow in retirement are real products that some contracts genuinely deliver. Tax deferral inside an IRA is not one of those reasons, because the IRA already provides it. When the sales pitch centers on a benefit the account structure already includes, the fees paid for that benefit are paying for something the buyer already owns.
Readers evaluating a similar recommendation can ask three questions. What specific feature of the annuity is not available through direct holdings in the same IRA? What are the total annual fees, including riders and subaccount expenses, expressed as a percentage? And what does the surrender schedule look like across the first seven to ten years? If the answers reduce to tax deferral and a long surrender window, the arithmetic against a 4.02% Treasury bill or a 4.26% I-bond speaks for itself.
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