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.

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. 

National Nexus Program

Visit the National Nexus Program page for more information.

Uniformity Projects

View our current and most recent projects.

2024 Fall Committee Meetings

November 18-21, 2024 
The Attorney Training session, Litigation Committee, Audit Committee, Nexus Committee, Uniformity Committee, Strategic Planning Committee, and Executive Committee will be meeting in Santa Fe, New Mexico

News & Information

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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A tale article

A Tale of Two Cities

Bruce Fort is Senior Counsel to the Multistate Tax Commission. In this A Tale of Two Cities (PDF) article, originally published in Law 360’s State and Local newsletter on March 28 and 29, 2023, Fort describes two recent appellate decisions that took very different...

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A tale article

Commission Files Amicus Brief in Gillette Case

On October 21, 2013, the Commission filed its amicus curiae brief on the merits in support of California in Gillette v. California Franchise Tax Board now pending at the California Supreme Court.  In the brief, the Commission argues that California law may vary...

VAS Holdings v. Commonwealth

Bruce Fort is Senior Counsel to the Multistate Tax Commission. The views expressed herein are his and those of his legal colleagues at the MTC. They do not necessarily reflect the views of the Multistate Tax Commission or its member states.  Would-Be Privateers...

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