https://taxfoundation.org/blog/south-carolina-flat-income-tax-reform/
South Carolina Flat Income Tax Options | Tax Foundation
Apr 7, 2025 - Lawmakers should proceed with caution on the intention for a South Carolina flat income tax. Tax policy experts provide some insight.
flat income taxsouth carolinaoptionsfoundation
https://www.law360.com/tax-authority/articles/2294604/kentucky-will-reduce-its-flat-income-tax-rate
Kentucky Will Reduce Its Flat Income Tax Rate - Law360 Tax Authority
Beginning in 2026, Kentucky will lower its flat individual income tax rate by half of a percentage point under a bill signed by the governor.
flat income taxkentuckyreduceratelaw360
https://taxfoundation.org/blog/idaho-flat-income-tax-reform/
Idaho Flat Income Tax Proposal: Details & Analysis
Dec 16, 2024 - Explore the latest details and analysis of the Idaho flat income tax reform plan. Learn more about the Idaho flat tax plan (Idaho income tax reform).
flat income taxidahoproposaldetailsanalysis
https://www.wsws.org/en/articles/2000/03/abta-m08.html
Alberta to switch to "flat" income tax - World Socialist Web Site
Alberta is set to become the first jurisdiction in North America to scrap a progressive income tax system and adopt a "flat" or single income tax rate. As part...
flat income taxalbertaswitchworldsocialist
https://www.iza.org/en/publications/dp/3721/effects-of-flat-tax-reforms-in-western-europe-on-income-distribution-and-work-incentives
Effects of Flat Tax Reforms in Western Europe on Income Distribution and Work Incentives |...
The flat income tax has become increasingly popular recently, yet its implementation is limited to Eastern Europe. We analyse the distributional and e...