The post-judgment interest rate is the weekly average one-year constant maturity Treasury yield for the calendar week preceding the date of entry of the judgment. Effective December 21, 2000, the rate of interest that may be added to a judgment, subject to the provisions of 28 U.S.C. §1961, 18 U.S.C. §3612 and 40 U.S.C. §258(e)(1) shall be equal to the weekly average 1-year constant maturity Treasury yield.

The U.S. Federal Reserve Board releases the H.15 Selected Interest Rates table which provides the most current interest rate. The applicable rate is listed under the section entitled "US Government Securities- Treasury Constant Maturities - 1-year." Specifically, the most current rate is located under the column heading, "Week Ending..."

The following table provides links to the Federal Reserve Board’s website that publishes the most current interest rate, historical interest rates and historical averages.

The 52-Week T-Bill Rate Table of Changes previously published by the U.S. District Court Southern District of New York may be found here, however; it is no longer updated. The Treasury discontinued the auction of 52-week T-bills as of February 2001.