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welcome to cost

The Council On State Taxation (COST) is the premier state tax organization representing taxpayers.  COST is a nonprofit trade association consisting of more than 600 multistate corporations engaged in interstate and international business.  COST's objective is to preserve and promote equitable and nondiscriminatory state and local taxation of multijurisdictional business entities.


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2016 Sales Tax Conference

February 23 - 25, 2016
Hard Rock Hotel
San Diego, California

Click Here For More Information 

Study: Total State and Local Business Taxes (FY14)

Businesses paid more than $688 billion in state and local taxes in FY2014, an increase of 2.2% from FY2013.  Click here for state-by-state and industry details of business taxes.


Update on Mobile Workforce State Income Tax Simplification Act

On June 17, 2015, the U.S. House Judiciary Committee held a mark-up and passed HR 2315, the Mobile Workforce State Income Tax Simplification Act, by a vote of 23-4.  H.R. 2315 has 130 bipartisan cosponsors, and the 275+ member Mobile Workforce Coalition is focusing lobbying efforts to schedule a floor vote for the bill.  For more information or to join the Mobile Workforce coalition efforts, please contact Douglas Lindholm.