Tax Counsel

Washington, DC

(202) 484-5228

mholmes@cost.org

Mark Holmes is Tax Counsel for the (Council On State Taxation) COST.  He assists in many of COST’s endeavors and engages in COST’s advocacy efforts in the Western States and some Southeast States. Mark brings a career spanning almost three decades in SALT, including two tours in Big 4 Accounting (PwC and KPMG) and two in-house positions with COST-Member companies (Lennox and JCPenney), with the last seven years as Director of Tax Planning at Lennox. He holds an LL.M. in Taxation from Georgetown University Law Center and a J.D. from SMU Dedman School of Law.