Series EE Bonds are US government savings bonds with one uniquely powerful feature: the Treasury guarantees they will double in value within 20 years, regardless of the stated interest rate. A $10,000 EE Bond held for exactly 20 years becomes $20,000 — an effective annualized return of approximately 3.53%. Combined with federal income tax deferral and permanent exemption from state and local taxes, EE Bonds are a straightforward, zero-risk savings vehicle for goals with a 20-year horizon (such as college education or long-term supplemental retirement savings).
Quick answer: EE Bonds earn a fixed rate (set at purchase) and are guaranteed to double at 20 years. Buy up to $10,000/year per person at TreasuryDirect.gov. Interest is taxable federally but exempt from state/local tax, and can be deferred until redemption. The 20-year doubling guarantee is the key feature — hold them for the full term.
Series EE Bond Key Facts 2026
| Feature | Detail |
|---|---|
| Issuer | US Department of the Treasury |
| Purchase method | Electronic only — TreasuryDirect.gov |
| Annual purchase limit | $10,000 per person per calendar year |
| Minimum purchase | $25 |
| Interest type | Fixed rate, set at time of purchase |
| Doubling guarantee | 20 years from issue date |
| Effective 20-year rate | ~3.53% per year |
| Maximum term | 30 years (interest earned for full 30 years) |
| State/local tax | Exempt |
| Federal tax | Taxable, but can defer until redemption |
| Early redemption penalty | 3 months’ interest if redeemed before 5 years |
| Minimum holding period | 1 year |
The 20-Year Doubling Guarantee
The most important feature of EE Bonds is not the stated fixed rate — it is the US government’s guarantee that EE Bonds will double at exactly 20 years. If the accumulated interest (at the stated fixed rate) would not reach the doubling value by year 20, the Treasury makes a one-time adjustment to bring the bond to exactly double its face value.
Example: A $10,000 EE Bond purchased in 2026 at a fixed rate of 2.70% would grow to approximately $17,100 at 20 years based on compound interest alone — not $20,000. The Treasury would add a one-time adjustment of ~$2,900 at the 20-year mark, bringing the value to exactly $20,000.
If the stated rate were above approximately 3.53%, the bond would reach double value before 20 years; the doubling guarantee only triggers if needed.
Implication: Hold EE Bonds for exactly 20 years. Redeeming at year 18 or 19 means missing the large one-time adjustment that brings the value to double. After 20 years, bonds continue earning the original fixed rate for up to 30 years total.
How to Buy Series EE Bonds
All new EE Bond purchases are electronic. Paper EE Bonds were discontinued in January 2012 and can only be redeemed.
To purchase:
- Open a TreasuryDirect account at TreasuryDirect.gov (free)
- Link your bank account
- Select “Buy” → “Series EE” → enter amount ($25 minimum, $10,000 maximum per calendar year)
- Bonds are issued and held electronically in your TreasuryDirect account
Bonds can also be purchased as gifts — you purchase them in your account, they sit in a gift box, and you deliver them to the recipient’s TreasuryDirect account. Gift bonds count against the recipient’s $10,000 annual limit in the year they are delivered.
Tax Rules for EE Bonds
Federal Tax
Interest on EE Bonds is subject to federal income tax, but you have a choice:
- Cash method (default): Report interest in the year the bond matures or you redeem it
- Accrual method: Report interest each year as it accrues (rarely chosen — requires IRS notification)
Most holders use the cash method, deferring all income until redemption — effectively converting ordinary income into income in a potentially lower-tax year (e.g., retirement, sabbatical).
State and Local Tax
EE Bond interest is exempt from all state and local income taxes — a meaningful advantage over CDs or other bank savings for residents of high-tax states (California, New York, New Jersey, etc.).
Education Tax Exclusion
EE Bond interest may be entirely excluded from federal tax when used for qualified higher education expenses:
Requirements:
- Bond was purchased in your name (and you were age 24+ at issue date)
- Used for tuition/fees at an eligible institution for you, your spouse, or a dependent
- Used in the same year as redemption
- Income phase-out applies: exclusion begins to phase out at $96,800 MAGI (single) and $145,200 (married filing jointly) for 2025
The education exclusion makes EE Bonds one of the few completely tax-free investment options for qualified educational costs.
EE Bonds vs I Bonds: Which Is Better?
| Feature | Series EE Bonds | Series I Bonds |
|---|---|---|
| Rate type | Fixed rate | Fixed + inflation adjustment |
| Annual limit | $10,000 electronic | $10,000 electronic + $5,000 paper |
| 20-year doubling guarantee | Yes | No |
| Best for | Long-term goals (20 years) | Inflation hedging (shorter-medium term) |
| Rate today | Set at purchase, fixed forever | Adjusts every 6 months |
| State/local tax | Exempt | Exempt |
| Education exclusion | Yes | Yes |
Rule of thumb: I Bonds are better when inflation is high; EE Bonds are better for very long-term goals where the doubling guarantee is more valuable than inflation adjustments.
Early Redemption Rules
- Minimum holding: 1 year — you cannot redeem before the bond is 1 year old
- Early redemption penalty: If you redeem before 5 years, you forfeit the last 3 months of interest
- After 5 years: No penalty; redeem anytime (but note the 20-year doubling guarantee means holding to year 20 is optimal)
Worked Example: College Savings with EE Bonds
A parent buys $5,000 in EE Bonds for their newborn in 2026. In 2046 (when the child is 20 and in college), the bond is guaranteed to be worth $10,000 — double the purchase price.
If used for qualified college tuition and fees, and the parent’s income is within the phase-out range, the $5,000 of interest income may be entirely excluded from federal tax.
Related US Bond and Savings Resources
- I Bonds Guide — inflation-linked US savings bonds
- I Bonds vs Treasury Bonds — comparing US government securities
- Treasury Bills Guide — short-term T-bills
- Savings Bond Calculator — calculate your EE or I Bond value
- Bond Investing Hub — all bond guides and comparisons
EE Bonds are niche but powerful: for families saving for a child’s education 20 years out, or for savers who want a guaranteed government-backed doubling of their money, they are worth considering. The key discipline is commitment — the 20-year guarantee only pays if you hold to maturity.
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