TIPS Are the Inflation Hedge Most Investors Misunderstand

Treasury Inflation Protected Securities, called TIPS, are the federal government's explicit promise to keep your purchasing power intact. They adjust the principal upward with CPI inflation and pay a fixed real interest rate on top of that adjusted principal. As of May 2026, the 10 year TIPS real yield is at 2.4 percent, the highest sustained level since 2010. Most investors do not own them. The reason is that the mechanics confuse people. Once you understand how they work, the case for adding them to a long term portfolio is stronger than it has been in 15 years.

The basic structure is straightforward. You buy a TIPS bond at par, say $1,000. The Treasury adjusts the principal upward every six months based on the change in CPI. The bond pays a fixed coupon, currently 2.4 percent for 10 year issues, on the adjusted principal. If inflation runs at 3 percent annually, your principal grows by 3 percent and your interest payment grows with it. At maturity, you get back the inflation-adjusted principal or your original principal, whichever is larger. There is no scenario where TIPS lose nominal value at maturity.

The reason real yields are this high in 2026 is the bond market repricing of long term inflation risk. After the inflation spike of 2021 to 2024 and the recent oil shock from Iran tensions, fixed income investors are demanding higher real compensation. The 10 year TIPS real yield at 2.4 percent compared to the 10 year nominal Treasury yield of 4.36 percent implies an inflation expectation of 1.96 percent over the next decade. That is below the actual recent inflation of 2.8 to 3.1 percent. If inflation runs hotter than expected, TIPS outperform nominal Treasuries.

The mechanics of where to hold TIPS matter more than people realize. The principal adjustments are taxed as ordinary income in the year they happen, even though you do not receive that money until the bond matures. This is phantom income. Holding individual TIPS in a taxable account creates an annual tax bill on income you have not yet received. The fix is to hold TIPS exclusively in tax-advantaged accounts. Roth IRAs are ideal because the inflation adjustments compound tax free.

For most investors, owning TIPS through a low cost ETF is simpler than buying individual issues. Three funds dominate the space. SCHP from Schwab tracks the broad TIPS market at 0.03 percent. VTIP from Vanguard tracks short term TIPS at 0.04 percent. STIP from iShares is also short term at 0.03 percent. The choice between broad and short term comes down to interest rate risk. The broad funds have a duration of about 6.5 years. The short term funds have a duration of around 2.5 years. In a rising rate environment, short term TIPS hold value better.

Allocation is the question most investors get wrong. The traditional advice was 5 to 10 percent of bonds in TIPS. Recent research from Vanguard's 2025 Capital Markets Model and Larry Swedroe's work suggests 25 to 50 percent of the bond allocation in TIPS makes more sense for investors with long horizons and inflation sensitive expenses. Retirees with healthcare and food costs that move with inflation benefit most. Younger investors with stable wages can run lower allocations.

Where TIPS do not work well is short term. If you are saving for a house down payment in two years, TIPS are the wrong tool. For short term savings, a high yield savings account at 4 percent or a 4 week Treasury bill at 4.34 percent is the right choice. TIPS are a long term inflation hedge, not a cash equivalent.

The behavioral piece is what trips most investors up. TIPS funds can show negative returns in years when real yields rise, even though their inflation protection is working. The 2022 to 2023 period saw broad TIPS funds drop 12 to 14 percent as real yields rose from negative territory back toward 2 percent. Investors who panic sold during that drop locked in losses on a position designed for 10 to 30 year holding. The discipline to hold through interest rate cycles is what makes TIPS work.

For Tennessee residents, there is no state income tax to worry about, which simplifies the math. TIPS interest and inflation adjustments are exempt from state taxes anywhere, but the federal tax treatment is the same. If you have a Roth IRA with room and a long horizon, allocating 5 to 15 percent to TIPS at current real yields is a defensible position. The current entry point will not last forever.