I-Bonds were the hottest savings product in 2022 when they briefly hit 9.62% APY. In 2026, with inflation moderating, their composite rate has come down significantly — but they still offer unique advantages for specific use cases.
How I-Bond rates work in 2026
I-Bond rates have two components: a fixed rate set at purchase (lasts the life of the bond) and a semiannual inflation rate that adjusts every May and November based on CPI-U. The composite rate is approximately: Fixed rate + (2 × Semiannual inflation rate).
In 2026, the fixed rate component has stabilized at 1.0–1.3% (significantly better than the 0% fixed rates of 2021–2022). This means I-Bonds purchased in 2026 will continue to beat inflation even when the inflation component falls.
The rules most people don't know
- $10,000 per person per year limit (additional $5,000 from tax refund)
- Must hold 1 year minimum before any redemption
- Redeem in years 1–5: lose the last 3 months of interest
- After 5 years: redeem any time, no penalty
- 30-year maturity (you can hold that long)
- Federal tax on interest — but state/local tax exempt
- Education exclusion: interest may be tax-free if used for qualified education (income limits apply)
I-Bonds vs HYSAs in 2026
| Feature | I-Bonds (2026) | Top HYSA (2026) |
|---|---|---|
| Current yield | 3.8-4.4% | 4.2-4.8% |
| Inflation protection | Yes (built-in) | No (rate can drop) |
| Liquidity | 1-year lockup | Same-day access |
| FDIC/government backing | US Treasury | FDIC up to $250k |
| Annual limit | $10,000 | Unlimited |
| Rate predictability | Semi-fixed (inflation-tied) | Variable, can drop quickly |
For money you won't need for 12 months, I-Bonds with a 1.2% fixed rate offer genuine long-term inflation protection that HYSAs don't. If the Fed cuts rates to 3% and HYSAs drop to 3.2%, your I-Bond continues earning inflation + 1.2%. The 1-year lockup is the price of that insurance.
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