Tax Department: DOR's call center hours for tax help are 8:30 a.m. - 4:00 p.m., Monday through Friday. (617) 887-6367 or (800) 392-6089 (toll-free in Massachusetts)
Child Support Services: Case-specific child support questions should be directed to (800) 332-2733 (local callers), (617) 660-1234).
For a complete listing of DOR phone numbers visit Who to call at DOR.
To submit general questions, comments and suggestions, please choose one of the following topics:
- Annual Certification of Entity Tax Status (Corporations Book)
- Certificate of Good Standing
- Child Support
- Corporate Excise
- Division of Local Services
- Identity Theft Information
- IFTA (International Fuel Tax)
- Personal Income Tax
- Trustee/Business Tax (Sales and Use, Withholding, Meals, Room occupancy and Telecommunications)
Please note: The Department welcomes questions, comments, and suggestions. However, to safeguard your privacy, do not send confidential taxpayer information (e.g., your Social Security number(s), tax liability amounts or other taxpayer-specific information). If you choose to disregard this warning, please be aware that the Massachusetts Department of Revenue is not responsible if confidential information which you sent by email is accessed by third parties.
If you have specific questions about your tax account, please log into MassTaxConnect and send us an email. For MassTaxConnect information, including how to reset your password, visit MassTaxConnect How To Tutorials.
District Office Counters for Tax Assistance
Monday through Friday, 8:30 a.m. – 4:30 p.m.
District Office Counters for Child Support Assistance
Monday through Friday, 9:00 a.m. – 5:00 p.m.
Visit any one of the Child Support Enforcement Division locations located in: