NOTE: THIS DATA FILE WILL CHANGE! To improve accessibility of data for all users, we will convert this file from a text format to an html table by the end of June 2024. Title: Bank Prime Loan Rate Changes: Historical Dates of Changes and Rates Series ID: PRIME Source: Board of Governors of the Federal Reserve System (US) Release: H.15 Selected Interest Rates Seasonal Adjustment: Not Seasonally Adjusted Frequency: Not Applicable Units: Percent Date Range: 1955-08-04 to 2023-07-27 Last Updated: 2023-07-28 3:37 PM CDT Notes: Effective Date. Early historical data for this series include the following: 1929 range of 5.5 to 6 1930 range of 3.5 to 6 1931 range of 2.75 to 5 1932 range of 3.25 to 4 1933 range of 1.5 to 4 1934 (date uncertain) value of 1.5 1935 (date uncertain) value of 1.5 1947-12 (specific date uncertain) value of 1.75 1948-08 (specific date uncertain) value of 2 1950-09-22: 2.25 1951-01-08: 2.5 1951-10-17: 2.75 1951-12-19: 3 1953-04-27: 3.25 1954-03-17: 3 EFFECTIVE 4/16/73 DUAL PRIME RATE DATE VALUE 1955-08-04 3.25 1955-10-14 3.50 1956-04-13 3.75 1956-08-21 4.00 1957-08-06 4.50 1958-01-22 4.00 1958-04-21 3.50 1958-09-11 4.00 1959-05-18 4.50 1959-09-01 5.00 1960-08-23 4.50 1965-12-06 5.00 1966-03-10 5.50 1966-06-29 5.75 1966-08-16 6.00 1967-01-26 5.75 1967-03-27 5.50 1967-11-20 6.00 1968-04-19 6.50 1968-09-25 6.25 1968-12-02 6.50 1968-12-18 6.75 1969-01-07 7.00 1969-03-17 7.50 1969-06-09 8.50 1970-03-25 8.00 1970-09-21 7.50 1970-11-12 7.25 1970-11-23 7.00 1970-12-22 6.75 1971-01-06 6.50 1971-01-15 6.25 1971-01-18 6.00 1971-02-16 5.75 1971-03-11 5.50 1971-03-19 5.25 1971-04-23 5.50 1971-07-07 6.00 1971-10-20 5.75 1971-11-08 5.50 1971-12-17 5.25 1972-01-03 5.00 1972-01-18 4.75 1972-02-16 4.50 1972-03-20 4.75 1972-03-31 5.00 1972-06-27 5.25 1972-08-29 5.50 1972-10-03 5.75 1972-12-27 6.00 1973-02-27 6.25 1973-03-26 6.50 1973-04-19 6.75 1973-05-07 7.00 1973-05-25 7.25 1973-06-07 7.50 1973-06-22 7.75 1973-07-02 8.00 1973-07-09 8.25 1973-07-18 8.50 1973-07-30 8.75 1973-08-06 9.00 1973-08-13 9.25 1973-08-21 9.50 1973-08-28 9.75 1973-09-18 10.00 1973-10-23 9.75 1973-10-29 9.50 1973-12-03 9.75 1974-01-29 9.50 1974-02-11 9.25 1974-02-19 9.00 1974-02-25 8.75 1974-03-22 9.00 1974-04-01 9.25 1974-04-04 9.50 1974-04-08 9.75 1974-04-11 10.00 1974-04-22 10.25 1974-04-25 10.50 1974-05-02 10.75 1974-05-07 11.00 1974-05-10 11.25 1974-05-17 11.50 1974-06-27 11.75 1974-07-08 12.00 1974-10-08 11.75 1974-10-22 11.25 1974-11-06 11.00 1974-11-13 10.75 1974-11-25 10.25 1975-01-13 10.00 1975-01-28 9.50 1975-02-03 9.00 1975-02-18 8.75 1975-02-24 8.50 1975-03-03 8.25 1975-03-10 8.00 1975-03-19 7.75 1975-03-25 7.50 1975-05-20 7.25 1975-06-09 7.00 1975-07-18 7.25 1975-07-25 7.50 1975-08-11 7.75 1975-09-15 8.00 1975-10-27 7.75 1975-11-04 7.50 1975-12-01 7.25 1976-01-12 7.00 1976-01-21 6.75 1976-06-01 7.00 1976-06-04 7.25 1976-08-02 7.00 1976-10-01 6.75 1976-10-29 6.50 1976-12-10 6.25 1977-05-13 6.50 1977-05-27 6.75 1977-08-22 7.00 1977-09-16 7.25 1977-10-07 7.50 1977-10-24 7.75 1978-01-10 8.00 1978-05-05 8.25 1978-05-26 8.50 1978-06-16 8.75 1978-06-30 9.00 1978-09-01 9.25 1978-09-15 9.50 1978-09-28 9.75 1978-10-13 10.00 1978-10-27 10.25 1978-11-01 10.50 1978-11-06 10.75 1978-11-17 11.00 1978-11-24 11.50 1978-12-26 11.75 1979-06-19 11.50 1979-07-27 11.75 1979-08-16 12.00 1979-08-28 12.25 1979-09-07 12.75 1979-09-14 13.00 1979-09-20 13.25 1979-09-28 13.50 1979-10-09 14.50 1979-10-24 15.00 1979-11-01 15.25 1979-11-09 15.50 1979-11-16 15.75 1979-11-30 15.50 1979-12-07 15.25 1980-02-19 15.75 1980-02-22 16.50 1980-02-29 16.75 1980-03-04 17.25 1980-03-07 17.75 1980-03-14 18.50 1980-03-19 19.00 1980-03-28 19.50 1980-04-02 20.00 1980-04-18 19.50 1980-05-01 18.50 1980-05-07 17.50 1980-05-16 16.50 1980-05-23 14.50 1980-05-28 14.00 1980-06-06 13.00 1980-06-13 12.50 1980-06-17 12.00 1980-07-07 11.50 1980-07-23 11.00 1980-08-22 11.25 1980-08-27 11.50 1980-09-08 12.00 1980-09-12 12.25 1980-09-19 12.50 1980-09-26 13.00 1980-10-01 13.50 1980-10-17 14.00 1980-10-29 14.50 1980-11-06 15.50 1980-11-17 16.25 1980-11-21 17.00 1980-11-26 17.75 1980-12-02 18.50 1980-12-05 19.00 1980-12-10 20.00 1980-12-16 21.00 1980-12-19 21.50 1981-01-02 20.50 1981-01-09 20.00 1981-02-03 19.50 1981-02-23 19.00 1981-03-03 18.50 1981-03-10 18.00 1981-03-17 17.50 1981-03-24 17.00 1981-03-27 17.50 1981-04-01 17.00 1981-04-20 17.50 1981-04-29 18.00 1981-05-04 19.00 1981-05-11 19.50 1981-05-18 20.00 1981-05-22 20.50 1981-06-01 20.00 1981-07-08 20.50 1981-09-16 20.00 1981-09-22 19.50 1981-10-05 19.00 1981-10-13 18.00 1981-11-02 17.50 1981-11-09 17.00 1981-11-16 16.50 1981-11-24 16.00 1981-12-01 15.75 1982-02-02 16.50 1982-02-17 17.00 1982-02-23 16.50 1982-07-20 16.00 1982-07-29 15.50 1982-08-02 15.00 1982-08-16 14.50 1982-08-18 14.00 1982-08-23 13.50 1982-10-07 13.00 1982-10-13 12.00 1982-11-22 11.50 1983-01-11 11.00 1983-02-25 10.50 1983-08-08 11.00 1984-03-19 11.50 1984-04-05 12.00 1984-05-08 12.50 1984-06-25 13.00 1984-09-27 12.75 1984-10-16 12.50 1984-10-29 12.00 1984-11-08 11.75 1984-11-28 11.25 1984-12-19 10.75 1985-01-15 10.50 1985-05-20 10.00 1985-06-18 9.50 1986-03-07 9.00 1986-04-21 8.50 1986-07-11 8.00 1986-08-26 7.50 1987-04-01 7.75 1987-05-01 8.00 1987-05-15 8.25 1987-09-04 8.75 1987-10-07 9.25 1987-10-22 9.00 1987-11-05 8.75 1988-02-02 8.50 1988-05-11 9.00 1988-07-14 9.50 1988-08-11 10.00 1988-11-28 10.50 1989-02-10 11.00 1989-02-24 11.50 1989-06-05 11.00 1989-07-31 10.50 1990-01-08 10.00 1991-01-02 9.50 1991-02-04 9.00 1991-05-01 8.50 1991-09-13 8.00 1991-11-06 7.50 1991-12-23 6.50 1992-07-02 6.00 1994-03-24 6.25 1994-04-19 6.75 1994-05-17 7.25 1994-08-16 7.75 1994-11-15 8.50 1995-02-01 9.00 1995-07-07 8.75 1995-12-20 8.50 1996-02-01 8.25 1997-03-26 8.50 1998-09-30 8.25 1998-10-16 8.00 1998-11-18 7.75 1999-07-01 8.00 1999-08-25 8.25 1999-11-17 8.50 2000-02-03 8.75 2000-03-22 9.00 2000-05-17 9.50 2001-01-04 9.00 2001-02-01 8.50 2001-03-21 8.00 2001-04-19 7.50 2001-05-16 7.00 2001-06-28 6.75 2001-08-22 6.50 2001-09-18 6.00 2001-10-03 5.50 2001-11-07 5.00 2001-12-12 4.75 2002-11-07 4.25 2003-06-27 4.00 2004-07-01 4.25 2004-08-11 4.50 2004-09-21 4.75 2004-11-10 5.00 2004-12-15 5.25 2005-02-02 5.50 2005-03-22 5.75 2005-05-03 6.00 2005-06-30 6.25 2005-08-09 6.50 2005-09-20 6.75 2005-11-01 7.00 2005-12-13 7.25 2006-01-31 7.50 2006-03-28 7.75 2006-05-10 8.00 2006-06-29 8.25 2007-09-18 7.75 2007-10-31 7.50 2007-12-11 7.25 2008-01-22 6.50 2008-01-30 6.00 2008-03-18 5.25 2008-04-30 5.00 2008-10-08 4.50 2008-10-29 4.00 2008-12-16 3.25 2015-12-17 3.50 2016-12-15 3.75 2017-03-16 4.00 2017-06-15 4.25 2017-12-14 4.50 2018-03-22 4.75 2018-06-14 5.00 2018-09-27 5.25 2018-12-20 5.50 2019-08-01 5.25 2019-09-19 5.00 2019-10-31 4.75 2020-03-04 4.25 2020-03-16 3.25 2022-03-17 3.50 2022-05-05 4.00 2022-06-16 4.75 2022-07-28 5.50 2022-09-22 6.25 2022-11-03 7.00 2022-12-15 7.50 2023-02-02 7.75 2023-03-23 8.00 2023-05-04 8.25 2023-07-27 8.50