Upcoming COST Events Columbus, OH - Mid-West Regional State Tax Seminar May 05, 2026 Chicago, IL - Mid-West Regional State Tax Seminar Being Held Jointly With The Chicago Tax Club May 06, 2026 2026 Intermediate/Advanced State Income Tax School May 17, 2026 2026 Intermediate/Advanced Sales & Use Tax School May 17, 2026 2026 SALT Basics School May 17, 2026 Short Hills, NJ - State and Local Taxation Primer/Refresher June 02, 2026 Short Hills, NJ - Mid-Atlantic Regional State Tax Seminar June 03, 2026 Houston, TX - Southwest/West Regional State Tax Seminar June 18, 2026
Upcoming Non-COST Events Morgan Lewis: R&D Tax Credit and Section 174 Updates and Insights April 28, 2026 IPTI Annual Corporate Property Tax Workshop April 28, 2026 EY: Financial and Tax Guidance in the Age of AI: What Works, What’s Risky And What’s Next April 29, 2026 Deloitte: Modernizing Tax Operations: CFO Strategies For The Future April 29, 2026 EY: EY TaxTech 2026: Building the future of Tax May 05, 2026 PwC: Q2 2026 Sustainability Webcast May 07, 2026 Crowe: International Tax Changes and U.S. Pillar 2 Response May 07, 2026 PwC: Q2 2026 Sustainability Webcast May 13, 2026