Government bonds that pay a rate of return that adjusts with inflation to ensure investors receive a fixed, real return have been around since the late 1990s. The most popular form are Treasury Inflation Protected Securities (TIPS), which can be purchased in brokerage accounts or directly from the Treasury, are actively traded in the secondary market, and are often pooled together into increasingly popular mutual funds and ETFs as investors worry about the risk of future inflation. Yet shortly after the arrival of TIPS, the U.S. Treasury also began to issue "Series I Bonds" directly to investors; these government savings bonds were an alternative to the historical Series E/EE and H/HH bonds, but like TIPS offered a rate of return that would float with inflation and ensure a specific fixed, real rate of return.
As real interest rates declined over the past decade, and the U.S. government experienced a sharp increase in debt issuance, TIPS have become increasingly popular as a way to hedge against the risk and fear of future inflation. Given the nature of their return, arguably I bonds can do so as well, but with one notable feature that makes them quite unique: the U.S. Treasury is always available to redeem Series I bonds at their full value, which eliminates any risk that their prices could decline if/when/as interest rates rise. In addition, unlike TIPS bonds, that have some very unfavorable tax treatment (which is why they're often held within IRAs), the I bond actually accrues and compounds its interest without paying it out, which allows the investor to both avoid reinvestment risk and enjoy automatic tax deferral as long as the savings bond is held!
Given these unique features and benefits of Series I bonds, arguably financial planners and their clients should be looking more closely at I bonds (or "Ibonds"!) as a potential way to hedge inflation and rising interest rates in client portfolios, or simply to use as an alternative to cash or ultra-short-term fixed income at a more appealing yield. Unfortunately, dollar amount limitations on the purchase of I bonds restricts the extent to which they can be used, and the requirement that I bonds be held in a TreasuryDirect account (and not a standard brokerage/investment account) further limits the practicality of their use. Nonetheless, for clients who are looking to manage their exposure to inflation and rising rates, or would simply like a better return on emergency funds or short-term funds they don't plan to use for a few years anyway, perhaps it's time to give Series I bonds a closer look.