Inflation is a quiet threat to anyone living on a fixed pool of savings, steadily eroding what each dollar can buy. Among the tools designed to counter it is a government bond that adjusts with the cost of living rather than being ground down by it. For retirees worried about their money losing value over a long retirement, these securities offer a built-in defense backed by the U.S. Treasury.
How TIPS work
Treasury Inflation-Protected Securities, commonly called TIPS, are bonds issued by the federal government whose principal value rises and falls with a measure of inflation. The Treasury’s description of TIPS explains that the principal is adjusted according to changes in the Consumer Price Index, so when inflation rises, the bond’s principal increases.
Interest is paid twice a year at a fixed rate, but because that rate is applied to the inflation-adjusted principal, the actual dollar amount of interest rises as the principal grows. When the bond matures, the holder receives either the inflation-adjusted principal or the original principal, whichever is greater, which protects against ending up with less than was invested even in the unusual event of overall deflation. That structure means the value tracks the cost of living rather than being fixed in nominal terms.
The result is a bond that aims to preserve purchasing power. A conventional bond pays back a set number of dollars that may buy less in the future; a TIPS is designed so that the amount returned keeps pace with rising prices, which is exactly the risk that most concerns a retiree relying on savings for decades.
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Where they fit in a retirement plan
Because they are backed by the full faith and credit of the U.S. government, TIPS carry very low credit risk, and their inflation adjustment makes them a natural counterweight to the erosion of buying power. The Securities and Exchange Commission’s investor education on bonds describes how fixed-income securities fit into a diversified portfolio, and inflation-protected bonds add a specific hedge that ordinary bonds lack.
For a retiree, a portion of savings in TIPS can help ensure that at least part of the portfolio keeps up with rising costs, complementing Social Security, which itself includes an annual cost-of-living adjustment. Together, inflation-adjusted income sources reduce the chance that a retiree’s real spending power shrinks over time even as prices climb.
Points to understand
TIPS come with details worth knowing. The inflation adjustment to principal is generally treated as taxable income in the year it occurs, even though the holder does not receive that increase in cash until the bond is sold or matures. For that reason, many investors hold TIPS in tax-advantaged accounts such as an IRA, where the annual adjustment does not create a current tax bill. Holding them in a taxable account is still possible but carries that timing quirk.
Their market price can also move with interest rates, like other bonds, so a TIPS sold before maturity might fetch more or less than its adjusted value depending on rate conditions. An investor who holds to maturity receives the inflation-adjusted principal regardless of interim price swings, which is the more straightforward way to capture the inflation protection.
How to buy them
TIPS can be purchased directly from the government through the TreasuryDirect platform without a broker or fee, in a range of maturities. They are also available through brokerage accounts and through mutual funds and exchange-traded funds that hold a basket of TIPS, which offers diversification and easier management for those who prefer not to hold individual bonds.
The broader lesson is that inflation, while unavoidable, can be planned for. A retiree who dedicates part of a portfolio to inflation-protected securities builds in a hedge that automatically adjusts with the cost of living, backed by the government, guarding a slice of savings against the slow loss of value that worries so many people living on a fixed nest egg. Understanding how TIPS work, and where they fit alongside other income, helps a retiree use them to protect purchasing power over the long haul.
Individual bonds versus funds
There are two main ways to hold these securities, and the choice affects how the inflation protection behaves. Buying individual TIPS and holding them to maturity delivers the clearest version of the guarantee: the holder receives the inflation-adjusted principal at maturity, or the original principal if higher, regardless of interim price swings. This approach suits a retiree who wants a known, inflation-protected sum available at a specific future date.
Funds that hold a basket of TIPS offer diversification and simplicity but work differently. Because a fund continuously holds bonds of varying maturities and does not itself mature, its share price fluctuates with interest rates, and there is no single maturity date at which a set inflation-adjusted amount is returned. A fund still provides broad inflation protection over time, but without the fixed-endpoint certainty of an individual bond held to maturity.
Fitting TIPS into a portfolio
The role TIPS play is best understood as a hedge rather than a growth engine. Dedicating a portion of savings to them helps ensure part of a portfolio keeps pace with rising prices, complementing Social Security’s annual cost-of-living adjustment and balancing assets like stocks that carry more risk. Because the annual inflation adjustment to principal is generally taxable in the year it occurs even without a cash payout, many investors hold TIPS in a tax-advantaged account to avoid that timing quirk. They can be purchased without a fee directly from the government through TreasuryDirect, or through a brokerage or fund. For a retiree worried about the slow erosion of purchasing power, a measured allocation to inflation-protected securities builds in an automatic, government-backed defense against the cost of living, protecting a slice of savings over a long retirement.
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This article was researched and drafted with AI assistance and reviewed against the linked primary sources.
Warren Cohen is a finance writer based in Phoenix, Arizona, covering personal finance topics including credit, banking, and beginner investing. He earned his degree in business administration from Arizona State University and began his career working in consumer finance, where he gained direct experience with lending and credit systems. He now writes for personal finance websites and fintech platforms, focusing on clear, practical content that helps readers make informed financial decisions.
