| 2025-09-26 | Grover Norquist and 35 Conservative Groups Urge Trump to Let ACA Tax Credits Expire While Opposing Corporate Tax Credit Expirations Grover Norquist · Americans for Tax Reform · Club for Growth · Americans for Prosperity · +3 |
| confirmed |
| 2025-04-10 | Trump Signs Bill Nullifying Expanded IRS Crypto Broker Rule Donald Trump · Mike Carey · Ways and Means Committee · U.S. Congress |
| confirmed |
| 2025-02-01 | ALEC Publishes 'Essential Policy Solutions 2025' Playbook - State-Level Corporate and Income Tax Elimination Agenda, Coordination with Federal Project 2025 American Legislative Exchange Council · Lisa Nelson · Arthur Laffer · State Policy Network · +5 | | confirmed |
| 2019-01-01 | State Corporate Tax Rates Decline 33% Over Three Decades - ALEC's Interstate Race-to-Bottom Costs States $43-57 Billion Annually in Lost Revenue American Legislative Exchange Council · State Legislatures · Corporate Lobby · Good Jobs First · +2 |
| confirmed |
| 2017-12-22 | Trump Signs Tax Cuts and Jobs Act - Corporate Rate Permanently Slashed from 35% to 21%, Pass-Through Deduction, Estate Tax Exemption Doubled, $1.9 Trillion Added to Deficit Donald Trump · Paul Ryan · Mitch McConnell · Kevin Brady · +6 | | confirmed |
| 2017-06-06 | Kansas Legislature Overrides Brownback Veto to Repeal Failed Tax Cuts - Republican-Controlled Legislature Rejects Supply-Side Economics After Devastating 5-Year Experiment Sam Brownback · Kansas Legislature · Arthur Laffer · American Legislative Exchange Council · +2 | | confirmed |
| 2014-02-26 | Ways and Means Chairman Proposes Carried Interest Reform That Private Equity Lobbying Defeats Dave Camp · House Ways and Means Committee · Carlyle Group · Cerberus Capital Management · +1 |
| confirmed |
| 2013-01-02 | Obama Signs American Taxpayer Relief Act Making 82% of Bush Tax Cuts Permanent - 'Fiscal Cliff' Deal Locks in $2.8 Trillion in Tax Cuts for Wealthy Barack Obama · Joe Biden · Mitch McConnell · John Boehner · +4 |
| confirmed |
| 2012-05-22 | Kansas Governor Brownback Signs ALEC-Laffer Tax Plan Eliminating Pass-Through Business Income Taxes - 'Kansas Experiment' Becomes Test Case for Supply-Side Economics Sam Brownback · Arthur Laffer · American Legislative Exchange Council · Kansas Legislature · +1 |
| confirmed |
| 2007-01-01 | ALEC Launches 'Rich States, Poor States' Report with Arthur Laffer - Annual Corporate Tax Competition Manifesto to Drive Interstate Race-to-Bottom American Legislative Exchange Council · Arthur Laffer · Stephen Moore · Jonathan Williams · +1 |
| confirmed |
| 2003-05-28 | Bush Signs JGTRRA - Dividend and Capital Gains Rates Slashed to 15%, Massively Favoring Investment Income Over Wages George W. Bush · Dick Cheney · Bill Thomas · Charles Grassley · +4 | | confirmed |
| 2001-06-07 | Bush Signs EGTRRA Tax Cuts - Top Rate Reduced from 39.6% to 35%, Estate Tax Phased Out, Beginning $1.5 Trillion Debt Increase George W. Bush · Dick Cheney · Paul O'Neill · Dennis Hastert · +4 | | confirmed |
| 1996-01-01 | Abramoff-Norquist-DeLay Network Defeats Native American Casino Tax Bill Jack Abramoff · Grover Norquist · Tom DeLay · Ralph Reed · +3 |
| confirmed |
| 1995-01-01 | ALEC Develops Tax and Expenditure Limitation Act - Model Bill to Restrict State Revenue and Manufacture Fiscal Crisis American Legislative Exchange Council · Colorado General Assembly · Corporate funders |
| confirmed |
| 1986-10-22 | Reagan Signs Tax Reform Act of 1986 - Top Individual Rate Cut from 50% to 28%, Corporate Rate Slashed from 46% to 34%, Tax Brackets Reduced from 16 to 2 Ronald Reagan · Dan Rostenkowski · Bob Packwood · Bill Bradley · +3 | | confirmed |
| 1982-09-03 | Reagan Signs TEFRA Reversing Much of ERTA - Largest Peacetime Tax Increase Raises $100 Billion After Revenue Collapse Ronald Reagan · Robert Dole · Jack Kemp · Bruce Bartlett · +1 | | confirmed |
| 1981-08-13 | Reagan Signs Economic Recovery Tax Act (ERTA) - Top Rate Slashed from 70% to 50%, Corporate Tax Cuts Total $150 Billion Over Five Years Ronald Reagan · Jack Kemp · William Roth · David Stockman · +4 | | confirmed |
| 1981-01-01 | Corporate Tax Avoidance Explosion: Reagan Loopholes Slash Corporate Revenue Ronald Reagan · Corporate America · Internal Revenue Service · U.S. Congress |
| confirmed |
| 1981-01-01 | Supply-Side Economics Failure: Empirical Evidence Debunks Trickle-Down Theory Ronald Reagan · Arthur Laffer · David Stockman · Greg Mankiw · +1 |
| confirmed |
| 1981-01-01 | Wealth Inequality Explodes: Reagan Policies Accelerate Income Gap Ronald Reagan · Top 1% earners · Middle class · Working class |
| confirmed |
| 1978-06-06 | Proposition 13 Passes, California Tax Revolt Spreads Nationally Howard Jarvis · Paul Gann | | confirmed |
| 1978-01-01 | Jude Wanniski Publishes "The Way the World Works," Supply-Side Economics Manifesto Jude Wanniski · Arthur Laffer · Wall Street Journal |
| confirmed |
| 1977-01-01 | Jack Kemp and William Roth Introduce Tax Cut Bill, Translating Supply-Side Theory to Legislation Jack Kemp · William Roth · Arthur Laffer · Jude Wanniski |
| confirmed |
| 1974-12-01 | Arthur Laffer Sketches Curve on Napkin with Rumsfeld and Cheney, Creating Supply-Side Icon Arthur Laffer · Jude Wanniski · Donald Rumsfeld · Dick Cheney |
| confirmed |
| 1942-04-28 | Renegotiation Act Enables Limited War Profit Recovery After Corporate Resistance U.S. Congress · U.S. War Department · Navy Department · Defense contractors · +1 |
| confirmed |
| 1940-10-08 | Excess Profits Tax Passed with Corporate Lobbying Loopholes U.S. Congress · Franklin D. Roosevelt · U.S. Treasury Department · National Association of Manufacturers · +1 |
| confirmed |
| 1926-02-26 | Revenue Act of 1926 Slashes Top Tax Rate to 25%, Abolishes Gift Tax in Full Mellon Plan Andrew Mellon · Calvin Coolidge · U.S. Congress · Republican Party | | confirmed |
| 1924-06-02 | Revenue Act of 1924 Continues Mellon Tax Cuts for Wealthy, Lowers Top Rate to 46% Andrew Mellon · Calvin Coolidge · U.S. Congress · Republican Party | | confirmed |
| 1921-11-23 | Revenue Act of 1921 Begins Mellon Tax Cuts for Wealthy Andrew Mellon · Warren G. Harding · Republican Party | | confirmed |
| 1913-10-03 | Underwood Tariff Slashes Corporate Protection, Establishes Modern Income Tax After 16th Amendment President Woodrow Wilson · Oscar Underwood · Democratic Party |
| confirmed |