MultiTax Commission

An intergovernmental state tax agency whose mission is to promote uniform and consistent tax policy and administration among the states, assist taxpayers in achieving compliance with existing tax laws, and advocate for state and local sovereignty in the development of tax policy.

58th Annual Meeting Week

July 21 – 24, 2025
The Annual Seminar, Litigation Committee, Audit Committee, Nexus Committee, Uniformity Committee, Annual Business Meeting, and Strategic Planning Committee will be meeting in Salt Lake City, Utah.

National Nexus Program

Visit the National Nexus Program page for more information.

Uniformity Projects

View our current and most recent projects.

Welcome to mtc.gov

This is the Multistate Tax Commission’s online hub for information about programs, projects, events, training, and other state tax resources.  Click here, If you would like to be added to the Commission’s public notice email list. 

News & Information

H.R. 8021: More Preemption of State Taxing Authority

The recent United States Budget Reconciliation bill included language that modifies the provisions of P.L. 86-272, the 1959 federal statute that prohibits states from imposing income taxes on out-of-state business if their only activity in a state is soliciting the...

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Credits: Cure for Use Tax Apportionment

Ellingson Drainage v. South Dakota - In this article published September 16, 2024 in Tax Analysts Tax Notes State, MTC National Nexus Program Director Richard Cram examines the South Dakota Supreme Courtʹs decision in Ellingson Drainage upholding the Department’s...

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TCJA Effects on State Taxes

In this article recently published in Tax Notes State, MTC Senior Counsel Bruce Fort argues that the states need to re-evaluate their policies regarding conformity to the TCJA to ensure that domestic and multinational companies are being taxed on an equal basis....

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MTC Letter to California OTA on Microsoft Case

On May 23, 2024, MTC Executive Director Greg Matson submitted a letter asking the OTA not to make their ruling precedential and explaining that the MTC agrees with the FTB that the result does not fairly reflect California’s share of Microsoft’s income.  View...

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80/20 Exclusion Is a Bad Idea for States

Pepsi Tax Case Shows Why 80/20 Exclusion Is a Bad Idea for States In this article, Senior Counsel Bruce Fort explains how the use of the “80/20” company exclusion from several states’ water’s edge combined filing group enables taxpayers to shift domestic income to...

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DMA v. Brohl—Is It Time to Stop Fighting the Last War?

Helen Hecht and Lila Disque of the MTC propose that rather than continuing the battle to persuade Congress or the Supreme Court to remove restraints on the states’ existing tax collection mechanism, states might consider an alternative mechanism that makes use of...

DMA and the Overture to Overturn Quill

Helen Hecht and Lila Disque of the MTC consider Justice Kennedy’s concurrence in the Direct Marketing Association case inviting states to bring a challenge to Quill, and the general problems in mounting such a test case. The article also discusses what Justice...

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