Taxes
MassTaxConnect Messaging
This is the fastest, most secure way to have your questions answered.
Log in to your MassTaxConnect account to:
- Send us secure messages with specific questions about your tax account 24/7
- Inquire about your refund (you can check the refund status without logging in)
- View transcripts
- Set up a payment agreement.
MassTaxConnect Support
Phone
Please have your Social Security number, address, or the letter you received ready to expedite your call.
Hours: 9 a.m. – 4 p.m., Monday through Friday
- (617) 887-6367
- (800) 392-6089 (toll-free in Massachusetts)
To protect your privacy, do not send confidential taxpayer information (e.g., your Social Security number, tax liability amounts, or other taxpayer-specific information). DOR is not responsible if the confidential information you send via non-secure email is accessed by third parties.
Other Tax Inquiries:
- Annual Certification of Entity Tax Status (Corporations Book)
- Business/Trustee Tax
- Certificate of Good Standing
- Corporate Excise
- International Fuel Tax Agreement (IFTA)
Mailing Your Tax Return
- Personal Income: Form 1 and Form 1-NR/PY:
- Refund: Mass. DOR, PO Box 7000, Boston, MA 02204
- Payment: Mass. DOR, PO Box 7003, Boston, MA 02204
View all mailing addresses for tax forms.
Report Tax Identity Theft
If you believe you are a victim of tax identity theft, call us at (617) 887-6350. To learn more, go to Tax Scams and Fraud.
Child Support Services (CSS)
Online
Phone
Call Center: (800) 332-2733
8:30 a.m.– 4:30 p.m., Monday through Friday
For Boston area callers: (617) 660-1234
Division of Local Services (DLS)
Phone
Main: (617) 626-2300
DLS Law (Local Officials Only): (617) 626-2400
- Taxpayer, media, and public information inquiries should be directed to dlswebcontacts@dor.state.ma.us
- Latest news, sign up for DLS Alerts.