# What are Treasury bill rates?

*The daily rates on Treasury bills from 4 weeks to 52 weeks, from the Treasury Department, as a coupon equivalent and as a bank discount rate.*

- Type: Data
- Section: Markets
- By: Markets Desk
- Published: 2026-11-11T23:00:26-05:00
- Updated: 2026-11-11T23:23:34-05:00
- URL: https://factsdesk.com/markets/what-are-treasury-bill-rates/

## Key facts

- The 13-week bill had a coupon equivalent rate of 4.22% on Nov 10, 2026, up 0.06 points from the prior business day. Source: [U.S. Department of the Treasury](https://home.treasury.gov/resource-center/data-chart-center/interest-rates/TextView?type=daily_treasury_bill_rates&field_tdr_date_value=2026). Confirmed 2026-11-11T23:23:34-05:00. Cite: https://factsdesk.com/markets/what-are-treasury-bill-rates/#the-13-week-bill-had-a-coupon-equivalent-rate-of-4-22-on-nov
- Across the 7 bill maturities with a rate that day, the 52-week bill had the highest coupon equivalent rate at 4.54% and the 4-week bill the lowest at 3.94%. Source: [U.S. Department of the Treasury](https://home.treasury.gov/resource-center/data-chart-center/interest-rates/TextView?type=daily_treasury_bill_rates&field_tdr_date_value=2026). Confirmed 2026-11-11T23:23:34-05:00. Cite: https://factsdesk.com/markets/what-are-treasury-bill-rates/#across-the-7-bill-maturities-with-a-rate-that-day-the-52
- These rates are daily secondary market quotations on the most recently auctioned bill of each maturity. Source: [U.S. Department of the Treasury](https://home.treasury.gov/resource-center/data-chart-center/interest-rates/TextView?type=daily_treasury_bill_rates&field_tdr_date_value=2026). Confirmed 2026-11-11T23:23:34-05:00. Cite: https://factsdesk.com/markets/what-are-treasury-bill-rates/#these-rates-are-daily-secondary-market-quotations-on-the

Last data: 2026-11-10T00:00:00-05:00 from [U.S. Department of the Treasury](https://home.treasury.gov/resource-center/data-chart-center/interest-rates/TextView?type=daily_treasury_bill_rates&field_tdr_date_value=2026), updated daily.

| Bill | Coupon equivalent | Bank discount | Change from prior day (points) |
| --- | --- | --- | --- |
| 4-week bill | 3.94% | 3.88% | -0.02 |
| 6-week bill | 4.08% | 4.01% | +0.03 |
| 8-week bill | 4.10% | 4.02% | +0.02 |
| 13-week bill | 4.22% | 4.12% | +0.06 |
| 17-week bill | 4.29% | 4.17% | +0.08 |
| 26-week bill | 4.41% | 4.26% | +0.11 |
| 52-week bill | 4.54% | 4.34% | +0.17 |

Rates are Treasury's daily secondary market quotations for Nov 10, 2026, in percent. The change is in the coupon equivalent rate.

The table shows the rates on Treasury bills for each maturity Treasury currently issues, from the Treasury Department's Daily Treasury Bill Rates, for the latest business day. The key facts at the top state the latest rates in a sentence.

## Two ways to state a bill's rate

Treasury lists two rates for each bill. The bank discount rate is the rate at which a bill is quoted in the secondary market, based on the par value, the amount of the discount and a 360-day year. The coupon equivalent, also called the bond equivalent or the investment yield, is based on the purchase price, the discount and a 365- or 366-day year. Treasury says the coupon equivalent can be used to compare a bill with a note or bond that pays interest twice a year.

## Where the numbers come from

Treasury says these rates are daily secondary market quotations on the most recently auctioned bill of each maturity.

## When it updates

Treasury publishes these rates for each business day, and this page reads Treasury's file every few hours and updates at the same address.

This page reports published rates and is not financial advice.

## Sources

1. [Daily Treasury Bill Rates](https://home.treasury.gov/resource-center/data-chart-center/interest-rates/TextView?type=daily_treasury_bill_rates&field_tdr_date_value=2026), U.S. Department of the Treasury, 2026-11-10 (primary source)