US savings bond rates & value
US savings bond rates and valuation: current Series I & EE rates, full rate history, and free calculators.
The current Series I bond composite rate is 4.26% for bonds issued May 2026 - October 2026 (a 0.90% fixed rate plus a 1.67% semiannual inflation rate). The current Series EE bond rate is 2.40%, and an EE bond is guaranteed to double in value if you hold it 20 years. Rates reset every 6 months on May 1 and November 1. Use the I bond value calculator to estimate what your bond is worth today.
Source: TreasuryDirect. Data as of May 2026.
Series I bond (May 2026)
4.26%
Composite rate · fixed 0.90% + inflation 1.67%
Series EE bond (May 2026)
2.40%
Fixed rate · doubles in value at 20 years
What’s my bond worth?
Estimate the current value of an I bond from your purchase amount and issue month.
Recent I bond rates
| Issue period | Fixed rate | Semiannual inflation | Composite (new bond) |
|---|---|---|---|
| May 2026 - October 2026 | 0.90% | 1.67% | 4.26% |
| November 2025 - April 2026 | 0.90% | 1.56% | 4.03% |
| May 2025 - October 2025 | 1.10% | 1.43% | 3.98% |
| November 2024 - April 2025 | 1.20% | 0.95% | 3.11% |
| May 2024 - October 2024 | 1.30% | 1.48% | 4.28% |
| November 2023 - April 2024 | 1.30% | 1.97% | 5.27% |
| May 2023 - October 2023 | 0.90% | 1.69% | 4.30% |
| November 2022 - April 2023 | 0.40% | 3.24% | 6.89% |
Source: TreasuryDirect Series I rate chart. Data as of May 2026.
Browse all 57 I bond rate periods (1998–2026) →
What you can look up
- Current rates — the I bond and EE bond rates for May 2026, explained.
- Full rate history — the complete fixed-rate, inflation-rate and composite-rate tables back to September 1998, plus EE rate history.
- Rate per period — a page for every 6-month issue period showing its exact fixed, inflation and composite rate.
- Calculators — estimate an I bond’s current value, compute the composite rate from the formula, or see the EE 20-year double.
- How they work — I bonds explained, I bond vs EE bond, taxes, purchase limits, and the 3-month penalty.
How the I bond composite rate works
A Series I bond earns a composite rate that combines a fixed rate (set for the life of the bond) with an inflation rate (reset every 6 months from CPI-U). The official Treasury formula is:
composite = fixed + (2 × semiannual inflation) + (fixed × semiannual inflation)
For May 2026 - October 2026: 0.90% + (2 × 1.67%) + (0.90% × 1.67%) = 4.26%. See the composite-rate calculator and our guide to how interest accrues.
Guides
Series EE bonds pay a low fixed rate but are guaranteed to double in value at 20 years — about 3.5% a year. Here's exactly how the guarantee works and when it pays off.
2026-06-18 Current I bond rate (June 2026): 4.26%The current Series I savings bond composite rate is 4.26% for bonds issued May–October 2026 — here's the breakdown and what it means for buyers.
2026-06-05 When to redeem your I bondsThe 1-year wall, the 3-month penalty, the 30-year maturity, and the trick of timing redemptions around rate changes — when to cash an I bond.
2026-05-12 Are I bonds still worth it in 2026?With a 4.26% composite rate and a 0.90% fixed rate — the best fixed rate since 2007 — here's an honest look at whether I bonds make sense in 2026.
2026-04-18 I bonds vs TIPS vs high-yield savingsThree popular places for safe, inflation-aware cash — I bonds, TIPS, and high-yield savings accounts — compared on rate, liquidity, taxes and risk.
2026-03-22 I bond tax tips: defer, exclude, and splitSavings bond interest is federal-only and state-tax-free. Here's how to use tax deferral, the college education exclusion, and reporting elections to your advantage.
2026-02-14Where the data comes from
Every rate is a dated snapshot from the U.S. Treasury’s official TreasuryDirect rate tables (public domain). Each I bond period’s composite rate was recomputed from the published formula and checked against the official chart. See our methodology for exactly how figures are derived.
Not investment or tax advice. BondValue is an independent reference, not affiliated with the U.S. Treasury or TreasuryDirect. Savings bond rates reset every 6 months (on May 1 and November 1), and any value shown here is an estimate. Verify current rates and the exact penny value of your bonds at TreasuryDirect’s official Savings Bond Calculator. Consult a qualified professional before making financial decisions.
Last updated: 2026-06-21