A $400,000 Annuity Guarantees $2,600 a Month for Life, but Here Is the $190,000 Retirees Are Giving Up

A 65-year-old retiree with $400,000 set aside is considering an annuity that pays roughly $2,600 a month, guaranteed for life. That comes to about $31,200 a year, arriving like clockwork until death. No market risk. No sequence-of-returns worry. No spreadsheet to maintain.

The deal looks appealing, especially with the 10-year Treasury climbing from roughly 4.4% a year ago to approximately 4.6% today. But there is a real trade-off buried in the fine print: roughly $190,000 in expected estate value that the retiree hands over to the insurance company across a normal lifespan.

According to Fidelity’s Q1 2026 data, Baby Boomers hold an average 401(k) balance of $260,300. A $400,000 nest egg sits comfortably above that midpoint, putting the annuity question squarely on the table. Consumer advocate Clark Howard has fielded this question for years, consistently telling listeners to run their pension or lump sum through immediateannuities.com to see what the market will actually pay before committing.

Why $2,600 a Month Looks Better Than It Is

A single-premium immediate annuity (SPIA) converts a lump sum into a guaranteed income stream. The insurer prices the payout off long-term interest rates, primarily the 10-year Treasury, which currently sits around 4.6%. The $2,600 monthly figure can look like an impressive yield, but most of each check is simply return of principal. The insurer pays the retiree back their own money plus a modest interest layer, then keeps whatever remains at death.

A 65-year-old today has a remaining life expectancy of roughly 20 years on a blended basis. Per the Social Security Administration’s 2026 Trustees Report data, a man turning 65 in 2026 has a cohort life expectancy of about 19.3 additional years, while a woman has about 21.9 years. If that same $400,000 stayed invested in a 4% balanced portfolio with the retiree withdrawing $31,200 per year, the math projects roughly $190,000 of residual value still sitting in the account at death. On a life-only SPIA, that residual goes to the insurance company. Heirs receive nothing.

The second cost is inflation. The 2026 Social Security COLA was 2.8%, and the Senior Citizens League currently projects the 2027 COLA at approximately 3.8%, reflecting persistently elevated consumer prices. A fixed $2,600 check buys measurably less every year, and that erosion accelerates the longer the retiree lives.

Running the same $400,000 against a self-managed 4% withdrawal strategy illustrates why the insurance-company guarantee carries a cost that compounds across two decades.

Annuity Types

Not every SPIA eliminates the inheritance. Three common contract structures offer different trade-offs between payout size and what your heirs receive:

1. Life-only pays the highest monthly amount but stops the day you die, even if that is only six months after signing. This is the version that generates the full $2,600.
2. Period-certain (typically 10 or 20 years) guarantees payments for a fixed window. If you die in year 5 of a 20-year-certain contract, your beneficiary collects the remaining 15 years of payments. The monthly check falls, often by 10% to 20%.
3. Joint-and-survivor continues payments to a spouse after the first death. Payouts shrink further, but the structure solves the problem for married couples who worry about the surviving spouse losing income.

Another Option: Annuitize a Slice

Many advisors recommend annuitizing only a portion of retirement assets rather than the full balance. The goal is to cover what might be called the essentials gap: the fixed monthly spending that Social Security does not already handle. The remaining assets stay invested, liquid, and inheritable.

Consider a retiree whose Social Security delivers $2,400 a month but whose fixed costs run $4,000 a month. The gap is $1,600. Closing that gap requires roughly $250,000 in a SPIA, leaving $150,000 outside the contract. That $150,000 stays accessible to heirs, available for unexpected medical costs, and positioned to grow.

Two refinements are worth considering within this approach:

1. Ladder your annuity purchases. Buying a SPIA now, another in three years, and another in six diversifies interest-rate risk and locks in progressively higher payouts as you age, since older buyers receive more income per dollar committed.
2. Look at inflation-adjusted SPIAs. These contracts start with a lower initial payment, often 25% to 30% less, but rise with CPI each year. With inflation projections running above 3%, the long-term math could favor them for healthy 65-year-olds planning for a 25-year or longer retirement.

What to Decide First

1. Calculate your essentials gap before sizing any annuity. Annuitizing more than the gap converts inheritable wealth into insurance-company profit the retiree will never see again.
2. Married couples should default to joint-and-survivor or period-certain contracts. Life-only contracts have left many surviving spouses without income, and the monthly boost from a life-only contract rarely justifies that exposure.

Editor’s note: This article was updated to reflect Fidelity’s Q1 2026 figure of $260,300 for the average Baby Boomer 401(k) balance (revised from $267,900), the current 10-year Treasury yield of approximately 4.6%, SSA cohort life expectancy figures of 19.3 years for men and 21.9 years for women turning 65 in 2026, and the Senior Citizens League’s current projection of a 3.8% Social Security COLA for 2027.

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