Glossary term

Series EE Bond

A Series EE bond is a U.S. savings bond that earns fixed interest and is guaranteed to double in value if held 20 years.

Updated

May 24, 2026

Read time

3 min read

What Is a Series EE Bond?

A Series EE bond is a U.S. savings bond issued by the Treasury. New EE bonds are electronic, earn a fixed rate, and are guaranteed by the Treasury to double in value if held for 20 years, even if an adjustment is needed at that point.

EE bonds are non-marketable. Owners buy and hold them through TreasuryDirect rather than trading them in the secondary bond market. They can fit conservative long-term saving goals, but the rules around holding period, redemption, and taxes matter.

Key Takeaways

  • Series EE bonds are U.S. savings bonds backed by the Treasury.
  • New EE bonds earn a fixed interest rate set when purchased.
  • Treasury guarantees that new EE bonds double in value if held 20 years.
  • They earn interest for up to 30 years unless redeemed earlier.
  • They are not marketable securities, so owners redeem them through the savings-bond system.

How Series EE Bonds Work

When someone buys an electronic Series EE bond, the purchase is made through TreasuryDirect. The bond earns interest monthly, and interest is compounded semiannually. The fixed rate applies for the life of the bond, subject to the 20-year doubling guarantee for current EE bonds.

The 20-year guarantee is the feature many savers focus on. If the regular fixed-rate accrual has not doubled the purchase value by the 20-year mark, Treasury makes an adjustment so the bond reaches that guaranteed value. After that point, the bond can continue earning interest until final maturity at 30 years.

Holding Period and Redemption

EE bonds are designed for long-term saving. They generally cannot be redeemed during the first 12 months. If redeemed before five years, the owner gives up the most recent three months of interest. After five years, that early-redemption penalty no longer applies.

Because the 20-year doubling guarantee is important, redeeming before 20 years can materially change the effective return. A saver who cashes out early may receive only the accrued value under the fixed-rate rules, not the full benefit of the doubling feature.

Series EE Versus Series I Bonds

Feature

Series EE bond

Series I bond

Main rate design

Fixed rate with 20-year doubling guarantee.

Fixed rate plus inflation adjustment.

Best-known use

Long-term nominal savings goal.

Inflation-sensitive savings goal.

Marketability

Non-marketable.

Non-marketable.

Final maturity

30 years.

30 years.

Tax Treatment

Interest on EE bonds is subject to federal income tax but not state or local income tax. Owners can generally defer reporting interest until they redeem the bond, the bond matures, or another taxable event occurs. Some education-related exclusions may apply when strict requirements are met.

That tax deferral can be useful, but it can also bunch income into one year. Owners should consider timing if a bond is near maturity, near the 20-year mark, or being used for education planning.

Portfolio Role

Series EE bonds are not designed for trading, yield speculation, or immediate liquidity. Their strongest case is usually a saver who values U.S. government backing, can hold long enough for the guarantee to matter, and understands the opportunity cost compared with Treasury bills, CDs, I bonds, or bond funds.

The practical question is time horizon. If the money may be needed soon, an EE bond's early redemption rules can be a poor fit. If the money can stay untouched for 20 years, the doubling guarantee becomes central to the comparison.

The Bottom Line

A Series EE bond is a Treasury-backed savings bond with a fixed rate and a 20-year doubling guarantee. It can be useful for long-term conservative saving, but the benefit depends heavily on holding period, tax timing, and alternatives available at purchase.

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