The State Organization Index provides an alphabetical listing of government organizations, including commissions, departments, and bureaus.
Top-requested sites to log in to services provided by the state
Find resources, forms, and helpful advice to guide you through Massachusetts' tax system.
Learn about personal income tax and the services we provide to you.
The city or town where you live collects property, personal property, and motor vehicle excise taxes. Learn more about these taxes.
Businesses come in all sizes — from large multinational corporations to sole proprietorships. This page has the information you need to fulfill your business tax obligations to the Commonwealth.
Learn what is and isn't subject to sales or use tax.
Learn about sales, meals, withholding, and other trustee taxes that organizations may collect on behalf of the state.
The Department of Revenue's Office of Appeals works with taxpayers to resolve tax disputes involving proposed or final tax assessments, amended returns, and other matters.