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The Corporations Book

A list of corporations subject to taxation in Massachusetts
Effective DateRelease Date
January 1, 2026May 13, 2026

The Corporations Book, a list of corporations subject to taxation in Massachusetts, is published annually by the Division of Local Services. This data can be accessed using DLS's Corporation Book Online Search page. 

The Corporation Book Online Search lets you search for Massachusetts corporations, financial institutions or insurance companies using keywords.The search results can be viewed and exported in Microsoft Excel format. 

Notice to Assessors from Senior Deputy Commissioner Sean Cronin
Corporation Book Online Search
Secretary of State's Corporations Database

Contact

Online

Translation Help

Phone

Business Income Tax Call The Corporations Book Contact, Business Income Tax at 617-887-6367
Last updated: May 15, 2026

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