The values shown are daily data published by the Federal Reserve Board based on the average yield of a range of Treasury securities, all adjusted to the equivalent of a one-year maturity. The current 1 year treasury yield as of March 12, 2020 is 0.39% . The 1 Year Treasury Rate is the yield received for investing in a US government issued treasury security that has a maturity of 1 year. The 1 year treasury yield is included on the shorter end of the yield curve and is important when looking at the overall US economy. Historically, the 1 year treasury yield reached upwards of 17.31% in 1981 and nearly reached 0 in the 2010s after the Great Recession. Treasury discontinued the 20-year constant maturity series at the end of calendar year 1986 and reinstated that series on October 1, 1993. As a result, there are no 20-year rates available for the time period January 1, 1987 through September 30, 1993. Treasury Yield Curve Rates: These rates are commonly referred to as "Constant Maturity Treasury" rates, or CMTs. Yields are interpolated by the Treasury from the daily yield curve.