As of late December 2015, the Supreme Court upheld a state law that readjusted multistate businesses’ income taxes; however, it only helped the companies based in California and harmed out-of-state businesses. This ruling impacted six major firms, including Proctor & Gamble, Sigma-Aldrich, Jones Apparel Group, Gillette, Kimberly-Clark and RB Holdings. They sought a $34 million refund for taxes paid to the state between 1993 and 2005, because they believe that California had broken their interstate agreement with the Multistate Tax Compact.

According to Attorney Mardiros Dakessian, who had filed arguments for some on behalf of the Institute for Professionals in Taxation, he claimed that the court “has basically said the compact is meaningless.” He also said that this ruling “implicates dozens of other compacts” and he recommends it for review by the U.S. Supreme Court.

To learn more about this case and Attorney Dakessian’s opinions, click on the following articles in which he has been quoted:

• San Francisco Chronicle
• Law 360