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The U.S. Department of the Treasury has announced a higher rate for Series I bonds, giving savers a more attractive government backed option as inflation pressures rise again. Newly purchased I bonds will pay 5.51% annual interest from Nov. 1 through April 30.

That marks an increase from the 4.26% yield available on purchases made through Oct. 31. The Treasury said Series I bonds will pay the new rate through April 2027, while rates for existing owners will adjust according to their original purchase dates.

The new composite rate combines a variable portion of 4.08%, based on inflation data, with a fixed portion of 1.40%. After rounding, those components produce the 5.51% composite rate announced by the Treasury.

The 1.40% fixed component is up from the 0.90% rate announced in April and is the highest fixed rate since 2006. Unlike the variable portion, the fixed component remains unchanged for the entire period that an investor owns the bond.

I bonds attracted intense interest when inflation surged after the pandemic. The rate reached a record 9.62% in May 2022, prompting investors to pour millions of dollars into an asset described as nearly free of risk and backed by the government.

Demand later cooled as inflation declined and I bond rates moved lower. Many investors with shorter investment horizons redeemed their bonds, but experts say rising inflation and improving rates could bring buyers back.

“I bonds are a lot more attractive at this point,” said David Enna, founder of Tipswatch.com. The website tracks Treasury inflation protected securities, commonly known as TIPS, along with Series I bond rates.

The consumer price index increased 3.7% in September 2026 compared with one year earlier. That was higher than the 3.4% annual pace recorded in August, according to an October report from the Bureau of Labor Statistics.

Some of September’s stronger inflation came from the Iran war, which increased gasoline and energy costs. Economists also pointed to President Donald Trump’s tariffs, new artificial intelligence data centers and demand for travel as factors adding to higher prices.

Consumers also expect inflation to remain elevated. The one year inflation outlook jumped to 3.9% in September, reaching its highest level in more than three years, according to a New York Fed survey released in early October.

Series I bond rates contain both variable and fixed components, which the Treasury updates every six months in May and November. The variable rate is tied to the consumer price index change over a six month period.

Once an investor buys an I bond, its variable rate remains unchanged for six months, regardless of whether the Treasury announces another update during that period. After six months of ownership, the variable yield moves to the next applicable announced rate.

The Treasury does not disclose how it determines adjustments to the fixed component, making future changes difficult to predict. Some experts believe the fixed rate could be influenced by inflation adjusted yields from TIPS with five year maturities.

Ken Tumin, founder of DepositQuest.com, highlighted the limits of trying to anticipate the Treasury’s decision. “There’s some uncertainty there,” Tumin said. His blog tracks I bond rates and other deposit accounts.

For an investor who purchased I bonds in March, when the variable rate was 3.12% and the fixed rate was 0.9%, the variable component would change after six months. It would shift to the 3.34% rate announced in April 2026, while the fixed rate would remain 0.9%.

I bonds can earn interest for as long as 30 years, although owners may redeem them earlier. Investors cannot cash them in during the first year, and anyone redeeming within five years forfeits the final three months of interest.

DISCLAIMER: GoldInvestors.news is not a registered investment, legal or tax advisor or broker/dealer. All investment/financial opinions expressed by GoldInvestors.news are from the personal research and experience of the owner of the site and are intended as educational material. Although best efforts are made to ensure that all information is accurate and up to date, occasionally unintended errors and misprints may occur.