How Series EE Savings Bonds Work
Series EE savings bonds are government-backed savings vehicles issued by the U.S. Treasury and sold through TreasuryDirect.gov. Bonds issued since May 2005 earn a fixed interest rate set at the time of purchase, which applies for the life of the bond. The most distinctive feature of EE bonds is the guaranteed doubling guarantee: regardless of the stated interest rate, the Treasury guarantees that a Series EE bond will be worth double its face value if held for exactly 20 years. This guarantee means the effective minimum return is approximately 3.53% annually over the 20-year period.
EE bonds are sold at face value — a $1,000 bond costs $1,000 and is worth $1,000 immediately. Bonds can be purchased for as little as $25 and up to $10,000 per year per Social Security number. Interest accrues monthly and compounds semiannually (it's added to the bond's value every six months). Bonds must be held for at least one year before they can be redeemed, and redeeming before five years results in a three-month interest penalty. After five years, bonds can be redeemed without penalty.
Tax Treatment of Series EE Bond Interest
Interest from Series EE bonds is subject to federal income tax but exempt from state and local income taxes. You can choose to report interest annually as it accrues (the accrual method) or defer all interest until the bond is redeemed (the cash method). Most investors use the cash method, deferring the tax liability for up to 30 years — the full maturity period during which EE bonds earn interest. After 30 years, bonds stop earning interest and should be redeemed.
An exceptional tax benefit applies if EE bond proceeds are used to pay qualified higher education expenses. Under the Education Savings Bond Program, interest may be entirely excluded from federal income tax if the bonds are redeemed in the same year as qualified tuition and fees for the taxpayer, spouse, or dependents. Income phase-outs apply (beginning around $100,000 for single filers and $150,000 for married couples in 2025), but for qualifying families, this transforms EE bonds into a tax-free education savings tool on top of their other features.
EE Bonds vs. I Bonds vs. Other Savings Options
Series I savings bonds, unlike EE bonds, are indexed to inflation — their rate adjusts every six months based on CPI. When inflation is high, I bonds can be very attractive. When inflation is low, EE bonds with the 20-year doubling guarantee often provide a better guaranteed return. Treasury bills and notes offer market-rate returns with no holding penalty after the initial term. CDs offer fixed rates with FDIC insurance, while high-yield savings accounts provide liquidity EE bonds lack.
The 20-year doubling guarantee is the key differentiator for EE bonds. If you can commit to holding for the full 20 years, the effective 3.53% annual return is guaranteed by the federal government — better than most risk-free alternatives when long-term treasury rates are below that threshold. EE bonds work particularly well as education savings supplements (due to the education tax exclusion), as multi-decade gifts for children or grandchildren, and as a portion of a fixed-income allocation for investors with very long time horizons.