The Baby Boomer Years and The IRS

1931 - The IRS Intelligence Unit used an undercover agent to gather evidence against gangster Al Capone. Capone was convicted of tax evasion and sentenced to 11 years.
1933 - Prohibition repealed. IRS again assumed responsibility for alcohol taxation the following year and for administering the National Firearms Act. Later, tobacco tax enforcement was added.
1942 - The Revenue Act of 1942, hailed by President Roosevelt as "the greatest tax bill in American history," passed Congress. It increased taxes and the number of Americans subject to the income tax. It also created deductions for medical and investment expenses.
1943 - Congress passed the Current Tax Payment Act, which required employers to withhold taxes from employees' wages and remit them quarterly.
1944 - Congress passed the Individual Income Tax Act, which created the standard deductions on Form 1040.
1952 - President Truman proposed his Reorganization Plan No. 1, which replaced the patronage system at the IRS with a career civil service system. It also decentralized service to taxpayers and sought to restore public confidence in the agency.
1953 - President Eisenhower endorsed Truman's reorganization plan and changed the name of the agency from the Bureau of Internal Revenue to the Internal Revenue Service.
1954 - The filing deadline for individual tax returns changed from March 15 to April 15.
1961 - The Computer Age began at IRS with the dedication of the National Computer Center at Martinsburg, W.Va.
1965 - IRS instituted its first toll-free telephone site.