What Is Guaranteed Income in Retirement, and How Does It Work?

Ask most people what guaranteed income means in retirement and they will say Social Security. Some will add a pension, if they are lucky enough to have one. Almost no one realizes there is a third way to build the same kind of dependable paycheck, using savings you already have.

What guaranteed income actually means

Guaranteed income is money that shows up every month for the rest of your life, in a fixed or predictable amount, no matter what the stock market did that week. It does not jump when markets rally and it does not fall when they drop. That is the whole point. It behaves like a paycheck rather than an account balance.

Social Security and a traditional pension are the two forms almost everyone already understands. What is less well known is that you can convert part of your own savings into that same kind of income, through a contract with a financial institution that trades a portion of your savings today for a promised monthly payment that continues for as long as you live. Unlike an investment account, the payment is not tied to market performance. It is a contractual promise, backed by the institution that issues it.

The research: retirees with guaranteed income spend differently

This distinction turns out to matter a great deal in practice. In a 2024 study for the Retirement Income Institute at the Alliance for Lifetime Income, researchers David Blanchett and Michael Finke compared households that hold a larger share of their assets as guaranteed income against households holding an equal amount purely in investment savings.^[1] The households with more guaranteed income spent roughly twice as much each year, for the same total wealth.

The same study found something even more telling. People said they would feel more comfortable spending on things like a vacation or a nice dinner out if they had an extra ten thousand dollars a year of guaranteed income than if they had an extra one hundred forty thousand dollars sitting in savings. That is striking, because one hundred forty thousand dollars was roughly what it would have cost to buy that same ten thousand dollar stream of income at the time. Same value, very different comfort level.

A follow up study by the same researchers, titled "Retirees Spend Lifetime Income, Not Savings," looked at why.^[2] Using a large national survey of Americans over fifty, they found that retirees consistently spend far more of their income sources, such as Social Security and pensions, than they draw from investment savings, even when they could easily afford to spend the savings too. People appear to sort their money into separate mental buckets. They treat the income bucket as safe to spend, and the savings bucket as something to protect, almost regardless of the actual math.

Protection as its own piece of the plan

Some retirement researchers have started arguing that guaranteed income deserves to be treated as its own category in a retirement plan, not just a leftover after stocks and bonds, but a distinct piece alongside them, sized to cover essential spending. Jason Fichtner, now executive director of the LIMRA Retirement Income Institute and a former Acting Deputy Commissioner of the Social Security Administration, has described this as thinking of a retirement portfolio less like a two legged stool of stocks and bonds and more like one with a third leg, where protected income is its own supporting piece.^[3]

The idea is not a specific allocation for you to copy. It is a way of asking a more useful question than how is my portfolio performing. The better question is how much of my life is covered, no matter what the market does.

How this fits the Two Portfolio Strategy™

This is the thinking behind our Two Portfolio Strategy™. You build an Income Portfolio to cover your essentials with dependable income, and you leave a Growth Portfolio free to stay invested for the goals beyond that floor. The research above is the reason why. Your Stability Score (PSI™) is the number that tells you how far along that path you already are, and the free calculator shows both in one pass.