Where can you find updated treasury bill rates?

A chart indicating updated treasury bill rates is available on the Resource Center section of the U.S. Department of the Treasury website, Treasury.gov. The chart indicates the daily secondary market quotation on the most recently auctioned treasury bills on each business day of the current month.

Hover the mouse pointer over the Resource Center button located on the main navigation bar of the Treasury home page, and select Data and Charts Center from the drop-down menu that appears. Click on Daily Treasury Bill Rates under the Interest Rates group to view the treasury bill rates chart. The Federal Reserve Bank of New York updates the chart on each business day, notes Treasury.gov.