Upcoming COST Events California Sales Tax & Other Transactional Taxes Webinar February 12, 2026 Nashville, TN - Southeast Regional State Tax Seminar February 26, 2026 2026 SALT In A Digital World Workshop March 02, 2026 Omaha, NE - Mid-West Regional State Tax Seminar March 31, 2026 2026 Spring Conference / Audit Session April 20, 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
Upcoming Non-COST Events PwC: 2026 Tax Policy Outlook — What’s on the horizon January 08, 2026 Deloitte: Complexities in Receipts Sourcing and Relief Through Alternative Apportionment January 15, 2026 Holland & Knight: New York LLC Transparency Act: What You Need to Know January 20, 2026 EY: Center for Tax Policy Monthly Update January 23, 2026 EY: Navigating the New UK Personal Tax and Immigration Landscape - January 2026 January 27, 2026 EY: Employer Paid Leave and Childcare Tax Credits Update Under OBBBA January 28, 2026 EY: BorderCrossings with EY Transfer Pricing and Tax Professionals - January 2026 January 29, 2026 CLA: Annual R&D Tax Credit Update 2026 February 05, 2026
