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: U.S Individual Income Tax: Taxable Income Boundary Over which the Highest Tax Rate Bracket Applies Series ID: IITTIHB Source: U.S. Department of the Treasury. Internal Revenue Service Release: SOI Tax Stats - Historical Data Tables (Not a Press Release) Seasonal Adjustment: Not Seasonally Adjusted Frequency: Annual Units: U.S. Dollars Date Range: 1913-01-01 to 2018-01-01 Last Updated: 2021-01-14 2:57 PM CST Notes: Years represent the tax years. As stated by the source, the definition of the income base (and, thus, the tax bracket boundaries) to which the tax rates were applied differs over the years, depending on how the following were determined and figured: statutory adjustments to or exclusions from income; personal exemptions; itemized deduction expenditures, which were sometimes described as income credits; standard deductions; the various thresholds and ceilings; and statutory taxable income (and its predecessor net income). Therefore, the lowest and highest taxable income amounts are not comparable for all years, and the amounts described as for statutory taxable income for tax years preceding 1954 are actually for statutory net income. Statutory net income was income after subtracting deductions but, for most years, was before subtracting personal exemptions. Statutory taxable income was after subtracting both deductions and personal exemptions. Taxable income is the tax base for recent years. Net income required certain adjustments to arrive at the tax base, depending on whether the income was subject to normal tax, surtax, or both. For more information on the specific adjustments, see Appendix to Selected Historical and Other Data Tables at https://www.irs.gov/uac/soi-tax-stats-historical-table-23 DATE VALUE 1913-01-01 500000 1914-01-01 500000 1915-01-01 500000 1916-01-01 2000000 1917-01-01 2000000 1918-01-01 1000000 1919-01-01 1000000 1920-01-01 1000000 1921-01-01 1000000 1922-01-01 200000 1923-01-01 200000 1924-01-01 500000 1925-01-01 100000 1926-01-01 100000 1927-01-01 100000 1928-01-01 100000 1929-01-01 100000 1930-01-01 100000 1931-01-01 100000 1932-01-01 1000000 1933-01-01 1000000 1934-01-01 1000000 1935-01-01 1000000 1936-01-01 5000000 1937-01-01 5000000 1938-01-01 5000000 1939-01-01 5000000 1940-01-01 5000000 1941-01-01 5000000 1942-01-01 200000 1943-01-01 200000 1944-01-01 200000 1945-01-01 200000 1946-01-01 200000 1947-01-01 200000 1948-01-01 400000 1949-01-01 400000 1950-01-01 400000 1951-01-01 400000 1952-01-01 400000 1953-01-01 400000 1954-01-01 400000 1955-01-01 400000 1956-01-01 400000 1957-01-01 400000 1958-01-01 400000 1959-01-01 400000 1960-01-01 400000 1961-01-01 400000 1962-01-01 400000 1963-01-01 400000 1964-01-01 400000 1965-01-01 200000 1966-01-01 200000 1967-01-01 200000 1968-01-01 200000 1969-01-01 200000 1970-01-01 200000 1971-01-01 200000 1972-01-01 200000 1973-01-01 200000 1974-01-01 200000 1975-01-01 200000 1976-01-01 200000 1977-01-01 203200 1978-01-01 203200 1979-01-01 215400 1980-01-01 215400 1981-01-01 215400 1982-01-01 85600 1983-01-01 109400 1984-01-01 162400 1985-01-01 169020 1986-01-01 175250 1987-01-01 90000 1988-01-01 29750 1989-01-01 30950 1990-01-01 32450 1991-01-01 82150 1992-01-01 86500 1993-01-01 250000 1994-01-01 250000 1995-01-01 256500 1996-01-01 263750 1997-01-01 271050 1998-01-01 278450 1999-01-01 283150 2000-01-01 288350 2001-01-01 297350 2002-01-01 307050 2003-01-01 311950 2004-01-01 319100 2005-01-01 326450 2006-01-01 336550 2007-01-01 349700 2008-01-01 357700 2009-01-01 372950 2010-01-01 373650 2011-01-01 379150 2012-01-01 388350 2013-01-01 450000 2014-01-01 457600 2015-01-01 464850 2016-01-01 466950 2017-01-01 470700 2018-01-01 600000