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I Bond Rate History

Every announced I Bond rate since May 2021, verified against TreasuryDirect press releases: the composite rate that ran from 3.54% all the way to 9.62%, and the fixed rate that ranged from 0% to 1.30%. The current rate — announced May 2026 — pays a 4.26% composite with a 0.90% fixed rate locked for 30 years. The next reset lands November 1, 2026. Look up any bond's rate below, or pit I bonds against a high-yield savings account.

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What rate is my I Bond earning?

Pick the month and year you bought the bond — the fixed rate from that announcement locks for 30 years, and the composite rate is what it earned for its first 6 months.

The month the bond was issued. A May 2026 announcement covers purchases from May through October 2026.

The year the bond was issued. This table covers May 2021 onward — older bonds should check TreasuryDirect.

Result—Enter values above

Enter values to see the result.

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I Bond vs savings account

One year of simple-interest illustration: your amount at the current 4.26% I Bond composite against your high-yield savings APY.

How much to compare. $10,000 is the annual electronic purchase limit per person — the maximum this comparison is sized for.

Your high-yield savings account's current APY. 4.5% is a typical 2026 figure. 0 to 25.

Result—Enter values above

Enter values to see the result.

The 60-second rule

An I Bond pays a composite rate = fixed rate + inflation rate, reset every May 1 and November 1. The fixed rate locks at purchase for the bond's full 30-year life; the inflation component resets every 6 months, and the composite you see at purchase is what the bond earns for its first 6 months only. The current composite is 4.26% (fixed 0.90%, announced May 2026) — good through October 31, 2026.

Every announced rate since May 2021

Verified against TreasuryDirect press releases (October 23, 2026). A May announcement covers purchases May–October; a November announcement covers November–April. Print-friendly — use your browser's print function.

AnnouncedFixed rateInflation (annualized)Composite
May 20260.90%3.34%4.26%
Nov 20250.90%3.12%4.03%
May 20251.10%2.86%3.98%
Nov 20241.20%1.90%3.11%
May 20241.30%2.96%4.28%
Nov 20231.30%3.94%5.27%
May 20230.90%3.38%4.30%
Nov 20220.40%6.48%6.89%
May 20220.00%9.62%9.62%
Nov 20210.00%7.12%7.12%
May 20210.00%3.54%3.54%

Watching the clock: the next reset lands November 1, 2026 — 9 days out. Fixed-rate forecasts (Tipswatch via USA Today, October 16, 2026) point to a fixed rate of around 1.3% (possibly 1.4%) and a composite of roughly 4.9%, but those are forecasts, not facts — check TreasuryDirect on November 1 before acting on them.

The rules that matter

Limit: $10,000 per person per year in electronic bonds at TreasuryDirect. Lock-in: you cannot redeem for the first 12 months. Early penalty: redeem before 5 years and you lose the last 3 months of interest. Taxes: federal tax is deferred until you cash out or the bond matures; the interest is exempt from state and local tax. Source for all rates above: TreasuryDirect — I Bonds Interest Rates.

Output · formula · meaning

OutputFormulaWhat it means
Fixed rate at purchasethe fixed rate in the announcement row covering your purchase month0.90% for a May 2026 purchase — locked for the bond's 30-year life.
First-6-months compositethe composite in the same announcement row4.26% for a May 2026 purchase — what the bond earns for its first 6 months, then it resets.
One-year I Bond interestamount × 4.26%$426.00 on $10,000 — a simple annualized illustration, not a promise.
One-year savings interestamount × your APY$450.00 on $10,000 at 4.5% APY.

Who uses this

  • The 2022 9.62% bondholder: checking what fixed rate that May 2022 bond carries (0.00% — it rode the inflation wave and nothing else) before deciding whether to keep or redeem it.
  • The new buyer timing November 1: deciding whether to buy before the reset at 0.90% fixed or wait — the lookup makes the current lock-in explicit.
  • The inflation-hedge shopper: comparing the 4.26% composite against a 4.5% savings APY, with the 1-year lock-in and 3-month penalty priced into the decision.
  • The student or researcher: citing the full announcement series — the cite block below is formatted for exactly that.

Accuracy & limitations

Every rate above was verified against TreasuryDirect press releases on October 23, 2026 — do not trust secondary tables, one of which copies the May 2024 row into its May 2026 row. The vs-savings comparison is a simple annualized illustration: the 4.26% composite resets after 6 months, I Bond interest compounds semiannually, and savings APYs move. It ignores the 1-year lock-in, the 3-month early-redemption penalty (bonds redeemed before 5 years), the $10,000 annual purchase limit, and taxes (I Bond interest is state-tax exempt; savings interest is not). The November 1, 2026 reset is days away — re-check before buying.

Cite this calculatorBright Side Kit. “I Bond Rate History.” brightoolbox.com, 2026.Bright Side Kit. "I Bond Rate History." https://brightoolbox.com/i-bond-rate-history/ Accessed October 23, 2026.
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Frequently asked questions

What is the current I Bond rate?

The rate announced May 2026: a 4.26% composite with a 0.90% fixed rate, good through October 31, 2026. The next reset is November 1, 2026.

What rate is my I Bond actually earning?

Two rates. The fixed rate from when you bought it locks for 30 years; the composite resets every 6 months, and the composite at purchase applied for the first 6 months only. Use the lookup above — a May 2022 bond earns a 0.00% fixed rate forever, for example.

Why was the May 2022 rate 9.62%?

That announcement paired a 0.00% fixed rate with a 9.62% annualized inflation rate — peak 2022 inflation, pure pass-through. The fixed rate was zero, so those bonds earn nothing above inflation for their whole 30-year life.

Are I bonds better than a high-yield savings account?

On raw first-year math at current rates: $10,000 earns $426.00 on the 4.26% I Bond composite vs $450.00 at a 4.5% savings APY — savings wins the illustration. But I bonds are state-tax exempt, the savings APY can fall, and the I Bond composite resets every 6 months. The lock-in (1 year) and 3-month early penalty tip short horizons toward savings.

When can I cash out an I Bond?

Not for the first 12 months. Redeem before 5 years and you lose the last 3 months of interest. After 5 years, no penalty. Bonds stop earning interest at 30 years.

Will the fixed rate really go to 1.3% on November 1?

That is a forecast (Tipswatch via USA Today, October 16, 2026), not an announcement. Treasury sets the actual fixed rate on November 1 — check TreasuryDirect that day before timing a purchase around it.

How much can I buy per year?

$10,000 per person per year in electronic bonds at TreasuryDirect (paper bonds via tax refund are a separate, smaller channel).