A common story with an uncommon answer
Picture a woman who just turned 70. She still works an hourly job, rents a small apartment, has about $70,000 in savings, and just started Social Security at roughly $2,100 a month, which she is banking. Then a relative dies and leaves her around $100,000. Her adult child wants to help but worries it is too late to invest, and she admits she is not good with money.
Versions of this very scenario show up on personal finance forums routinely: a healthy retiree with modest savings, a sudden lump sum, and zero confidence in the stock market. The right question is what the money should do for her. For someone in her position, the money’s job is income. The cleanest way to convert a lump sum into income is to buy herself a pension.
Why a plain immediate annuity fits this profile
A Single Premium Immediate Annuity, or SPIA, works like the old-fashioned pensions our parents had. You hand an insurance company a lump sum, and starting next month it sends you a check every month for the rest of your life. No investment decisions, no market anxiety, no watching a balance shrink in a bad year.
Current payouts are attractive because interest rates are elevated. The 10-year Treasury yield sits near 4.5%, close to the top of its 12-month range, and insurers price annuities off those yields. As an illustration only, a $100,000 SPIA for a healthy 70-year-old woman might generate roughly $650 to $750 a month for life. Waiting a few years and using a deferred income annuity instead would raise that starting check further.
Stack that on her $2,100 Social Security check, and suddenly rent, groceries, and utilities are covered by guaranteed income that arrives whether the market is up or down.
How Social Security changes the math here
Two features of her Social Security benefit strengthen the annuity idea.
First, Social Security has an inflation adjustment built in. The 2026 cost-of-living adjustment (COLA) is 2.8%, and future raises will continue to push her benefit up. A level SPIA does not adjust, so its purchasing power erodes over time. Core PCE, the Federal Reserve’s preferred inflation gauge, ran at 3.4% annually as of May 2026, confirming that prices are still rising faster than the Fed’s 2% target. This is precisely the kind of environment where an inflation-adjusted income source like Social Security earns its keep. Because Social Security is doing the inflation-fighting work in her income mix, the SPIA can be the stable floor underneath it. She can also ask for a version with an annual COLA increase, which lowers the starting check in exchange for growing payments later.
Second, since she is still working and banking her Social Security, she has a rare luxury: time. She does not need annuity income today. Delaying the purchase by even a few years lets rates and mortality credits both work in her favor, meaning a larger monthly check for the same $100,000.
What she should protect before annuitizing
The real cost of a SPIA is liquidity. Once the check is written, the principal is gone. She cannot call the insurance company in three years and ask for $15,000 back for a medical bill.
That is why the $70,000 she already has matters so much. A meaningful chunk of it, enough to cover 12 to 24 months of essentials plus a health cushion, should stay in cash and short Treasuries before she signs anything. I-bonds are currently paying a 4.3% composite rate, and short T-bills yield near 4%. Those are reasonable homes for the emergency layer.
Fair alternatives worth pricing against a SPIA: a conservative bond or Treasury ladder, or a target retirement income fund. Both keep her principal accessible, but neither guarantees a check for life, and both leave the income decision on her plate each year. Plain SPIAs are the straightforward cousins of a family that includes some products she should avoid, especially fixed indexed annuities loaded with income riders and surrender charges.
What to think through before signing
The liquidity warning and the shopping process deserve equal weight.
- Keep the emergency cushion outside the annuity. The mistake that is hardest to undo is annuitizing every dollar and then facing an unexpected expense with no reserve.
- Get at least three quotes on the same day from highly rated insurers, and price both a level payout and one with a cost-of-living increase. Payout rates move with markets, so a quote from last quarter is not the deal on the table now.
Seventy is still early enough to plan. A healthy woman starting Social Security today can reasonably plan for a 20-plus year runway. Her real choice is whether to spend the next two decades managing a portfolio she does not enjoy, or to hand that job to an insurance company and get on with her life. Individual circumstances, health, and state rules all shift the answer, so a conversation with a fee-only planner before writing the check is money well spent.
Contact [email protected] for any questions or corrections.
Top Gaining Stocks
Top Losing Stocks