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.

59th Annual Meeting Week

July 27 – 30, 2026
The Annual Seminar, Litigation Committee, Audit Committee, Nexus Committee, Uniformity Committee, Annual Business Meeting, and Strategic Planning Committee will be meeting in Detroit, Michigan.

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.

News & Information

Tax Notes – States Article on the Briefing Book

The article from Tax Notes – State,  here, speaks to the MTC Briefing Book on new federal rules on NCTI and international business income (see below). Read the article from Tax Notes – State (PDF) Changes in Federal Taxation of Multinational Corporate Groups (PDF)...

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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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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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Anatomy of a Domestic Tax Shelter

Tax Analysts published an article by MTC Senior Counsel Bruce Fort in its May 17, 2021 publications Tax Notes State, Tax Notes Federal and Tax Notes International entitled, “Anatomy of a Domestic Tax Shelter” regarding the use of so-called 80/20 companies as a...

MTC Annual Conference & Committee Meetings

The Commission’s 2014 Annual Conference and Committee Meetings are being held on July 28 – 31, 2014 in Albuquerque, New Mexico.  Registration is required for those attending the Wednesday, July 30 conference and strongly encouraged for anyone attending any of the...

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...

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