Treasury bill (T-bill) rates today
Coupon-equivalent yields of Treasury bills, based on closing market bid prices, published daily by the US Treasury.
Quick summary
- 4-week: 4.02% (October 16, 2026).
- Update frequency: Every business day.
- Source: U.S. Department of the Treasury, Daily Treasury Bill Rates.
4-week
4.02%
Data for: October 16, 2026
Previous: 4.07% (October 15, 2026)
13-week
4.18%
Data for: October 16, 2026
Previous: 4.20% (October 15, 2026)
26-week
4.35%
Data for: October 16, 2026
Previous: 4.36% (October 15, 2026)
52-week
4.44%
Data for: October 16, 2026
Previous: 4.47% (October 15, 2026)
What it is
Treasury bills are short-term US government securities sold at a discount and repaid at face value. The coupon-equivalent yield converts the discount into an annual rate you can compare with savings accounts and CDs.
Why it matters
T-bills are a common place to park cash: they are backed by the US government and their interest is exempt from state and local income tax. Their yields stay close to the fed funds rate, so they rise and fall with Fed decisions.
Recent history
| Date | 4-week | 8-week | 13-week | 26-week | 52-week |
|---|---|---|---|---|---|
| October 16, 2026 | 4.02% | 4.10% | 4.18% | 4.35% | 4.44% |
| October 15, 2026 | 4.07% | 4.12% | 4.20% | 4.36% | 4.47% |
| October 14, 2026 | 4.00% | 4.06% | 4.20% | 4.38% | 4.50% |
| October 13, 2026 | 3.98% | 4.05% | 4.19% | 4.35% | 4.47% |
| October 9, 2026 | 4.03% | 4.05% | 4.16% | 4.33% | 4.46% |
| October 8, 2026 | 4.04% | 4.06% | 4.15% | 4.31% | 4.43% |
| October 7, 2026 | 3.94% | 4.06% | 4.15% | 4.29% | 4.42% |
| October 6, 2026 | 3.95% | 4.05% | 4.14% | 4.30% | 4.45% |
| October 5, 2026 | 3.95% | 4.05% | 4.15% | 4.31% | 4.46% |
| October 2, 2026 | 3.95% | 4.04% | 4.11% | 4.29% | 4.46% |
| October 1, 2026 | 3.96% | 4.06% | 4.10% | 4.28% | 4.44% |
| September 30, 2026 | 3.91% | 4.06% | 4.13% | 4.34% | 4.54% |
| September 29, 2026 | 3.95% | 4.08% | 4.17% | 4.37% | 4.58% |
| September 28, 2026 | 3.96% | 4.10% | 4.20% | 4.42% | 4.54% |
| September 25, 2026 | 3.97% | 4.10% | 4.18% | 4.36% | 4.48% |
| September 24, 2026 | 3.93% | 4.08% | 4.18% | 4.37% | 4.47% |
| September 23, 2026 | 3.88% | 4.00% | 4.14% | 4.34% | 4.44% |
| September 22, 2026 | 3.88% | 3.99% | 4.11% | 4.30% | 4.40% |
| September 21, 2026 | 3.88% | 4.00% | 4.12% | 4.31% | 4.42% |
| September 18, 2026 | 3.89% | 4.00% | 4.08% | 4.27% | 4.41% |
| September 17, 2026 | 3.89% | 4.00% | 4.07% | 4.24% | 4.37% |
| September 16, 2026 | 3.88% | 3.96% | 4.09% | 4.26% | 4.43% |
| September 15, 2026 | 3.85% | 3.96% | 4.07% | 4.21% | 4.36% |
| September 14, 2026 | 3.86% | 3.96% | 4.07% | 4.21% | 4.35% |
| September 11, 2026 | 3.85% | 3.96% | 4.01% | 4.16% | 4.34% |
| September 10, 2026 | 3.84% | 3.93% | 3.95% | 4.11% | 4.27% |
| September 9, 2026 | 3.72% | 3.83% | 3.90% | 4.03% | 4.16% |
| September 8, 2026 | 3.72% | 3.82% | 3.89% | 4.03% | 4.14% |
| September 4, 2026 | 3.72% | 3.81% | 3.86% | 4.01% | 4.13% |
| September 3, 2026 | 3.76% | 3.82% | 3.84% | 3.99% | 4.11% |
These are secondary-market rates. New bills are sold at weekly auctions on TreasuryDirect and through brokers, and the auction rate can differ slightly.
How to read
Latest: 4.02%
Where it comes from
U.S. Department of the Treasury, Daily Treasury Bill Rates
Careful
Information, not advice
What to do
Compare with the related indicators
Reading the treasury bill (t-bill) rates today figure
What the latest treasury bill (t-bill) rates today reading says
The most recent value on this page is 4.02%, for October 16, 2026. Against the previous reading of 4.07%, that is −0.05% — a move down. Every business day is how often U.S. Department of the Treasury, Daily Treasury Bill Rates publishes it, so a single reading is a snapshot and not a trend. The 30 observations in the table above, from September 3, 2026 onwards, are what gives the figure context.
Where the treasury bill (t-bill) rates today figure sits in its own history
Across the 30 readings loaded here, the series moved between 3.72% and 4.07%. The latest value sits inside that range, so nothing in this window is exceptional. A window this short cannot show a cycle. It shows the direction of travel and the size of the usual swing, which is enough to tell a normal move from an unusual one, and no more than that.
Who sets the treasury bill (t-bill) rates today and who it affects in United States
U.S. Department of the Treasury, Daily Treasury Bill Rates publishes the treasury bill (t-bill) rates today series, and the page links the exact dataset and its licence below. Nothing here is a second-hand copy: the figure above is read from that source and shown with the date the source gave it. People reach this page searching for "t bill rates today", and the honest answer is the published figure plus its date. A national figure is an average: your own rate, bill or salary in United States will sit above or below it.
Glossary
Policy rate
The interest rate a central bank sets to steer the economy, and the floor under most other rates in that currency. It moves only when the rate-setting committee decides, so its history is a series of steps rather than a continuous line.
Basis point
One hundredth of a percentage point. Central banks and markets talk in basis points because "a 0.25 point cut" and "a 25 basis point cut" are the same thing, and the second wording leaves no room for doubt.
Real rate
An interest rate after inflation is taken out, roughly the quoted rate minus the inflation rate. A savings account paying less than inflation has a negative real rate, which means the money loses purchasing power.
Revision
A later correction of a published figure, as the statistics office receives more complete data. Values marked provisional or estimated are the ones most likely to change, which is why the page keeps the source flag.
National average
A figure averaged over a whole country, and therefore not a quote for you. Your own mortgage rate, salary or grocery bill depends on your region, your lender or your shop and will sit above or below the average.
Year-on-year inflation
The change in a price index against the same month a year earlier. It can fall while prices are still rising, because it measures the speed of the increase, not the level of prices.
Yield
The annual return an investor earns by lending money through a bond, expressed as a percentage of its price. Price and yield move in opposite directions: when a bond gets cheaper, its yield rises.
Source: U.S. Department of the Treasury, Daily Treasury Bill Rates
Licence: U.S. government work, public domain (17 U.S.C. § 105)
Update frequency: Every business day
Information only, not financial advice. Figures come from the official source shown and may be revised.
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