Upcoming National Meeting 2026 Spring Conference / Audit Session This Conference will present the latest income and sales tax developments, initiatives, and case law, with breakout sessions offering in-depth discussions of key issues. Industry‑only state audit sessions will provide a state‑by‑state exchange on legislative, audit, judicial, and regulatory matters affecting COST-member companies.
Legislative Alert ISSUE 26-17; April 22, 2026 COST Supports Louisiana Legislation Extending Appeal Period to 90 Days
Cost Conscious ISSUE 26-08; April 17, 2026 Procurement-Related Sales Tax Practices – In our latest series on best practices, we are surveying members on various methods for including sales tax within the procure-to-pay process. Last week’s question on this topic sparked some conversations with members, prompting us to step back and better understand the different approaches to managing use tax. In your organization, which team is primarily
COST - Council on State Taxation Amicus Briefs AT&T Mobility, LLC v. Board of Supervisors of Lamar County, Mississippi COST filed an amicus brief requesting the Supreme Court of Mississippi to accept an interlocutory appeal to address both the legality of, and constitutional issues with, a county assessor’s property tax valuation of a telecommunications company’s personal property. The brief pointed out concerns with the assessor not following the State’s valuation process which for industrial personal property is
COST - Council on State Taxation COST Studies, Articles & Reports 2026 State and Local Amnesty Programs Tracker of most state and local tax amnesty programs enacted and conducted in 2026.
COST - Council on State Taxation COST Comments & Testimony Testimony in Support of a 90-Day Appeal Period, S.B. 196 COST submitted testimony to Louisiana House Ways and Means Committee in support of S.B. 196, which will provide a 90-day period for taxpayers to appeal an assessment or the denial of a refund request.
