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Series I Savings Bonds

What Is a Series I U.S. Savings Bond?

A Series I savings bond is a U.S. government bond designed to protect investors from inflation. These bonds earn interest through a combination of a fixed rate and an inflation-adjusted rate.

The interest rate adjusts periodically based on changes in inflation.

Why It Matters

Series I bonds help preserve purchasing power over time because their returns increase when inflation rises. They are often used as a safe long-term savings option for individuals concerned about inflation.

Because they are backed by the U.S. government, they are considered low risk.

How Series I Bonds Work

Series I bonds earn interest through two components:

  • a fixed interest rate
  • a variable inflation rate

Interest compounds over time and accumulates until the bond is redeemed.

Example

An investor buys a Series I bond during a period of high inflation, causing the bond’s interest rate to rise.

Series I Bond vs Series EE Bond

  • Series I bonds adjust with inflation.
  • Series EE bonds pay a fixed interest rate.

FAQs About Series I Bonds

Why do people buy Series I bonds?
They provide protection against inflation.

Can Series I bonds lose value?
They are designed to preserve principal value.

Where can Series I bonds be purchased?
They are available through TreasuryDirect.

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