Upcoming COST Events Omaha, NE - Mid-West Regional State Tax Seminar March 31, 2026 2026 Spring Conference / Audit Session April 20, 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 57th Annual Meeting September 22, 2026
Upcoming Non-COST Events State Tax Law: Most Impactful Income Tax Sourcing Cases March 12, 2026 Deloitte: Indirect Tax Recovery: A global View March 16, 2026 EY: Accounting For Income Taxes: A Quarterly Perspective - March 2026 March 17, 2026 PwC: Tax Readiness: Q1 Tax accounting considerations March 18, 2026 PwC: Q1 2026 Accounting Webcast March 19, 2026 EY: EY Center for Tax Policy Monthly Update - March 2026 March 20, 2026 Kilpatrick: State Taxation of the Digital Economy March 24, 2026 EY: What You Need To Know For Q1 2026 Financial Reporting (Offering – 2 of 2) March 24, 2026