Phone Number Massachusetts Department of Revenue 2026: Call Now
A phone-first Massachusetts Department of Revenue guide for taxpayers who need the right DOR contact number, MassTaxConnect login support, refund phone help, personal income tax support, business tax help, notices and bills assistance, child support customer service, Division of Local Services direction and official Mass.gov contact links.
Quick Answer: What Is the Massachusetts Department of Revenue Contact Number?
The main Massachusetts Department of Revenue Contact Center number is 617-887-6367. If you are calling from within Massachusetts and want the toll-free option, use 800-392-6089. The DOR phone hours shown on Mass.gov are 9 a.m. to 4 p.m., Monday through Friday. Before calling, have your Social Security number, address, business tax information or DOR letter ready so the representative can locate the issue faster.
Main DOR Contact Center
Call 617-887-6367 for Massachusetts DOR taxpayer support, including personal income tax, business tax, notices, bills, refund access and MassTaxConnect questions.
Toll-Free in Massachusetts
Call 800-392-6089 if you need the toll-free Massachusetts option for DOR taxpayer assistance.
Secure Message First
MassTaxConnect secure messaging is often the safest option for account-specific questions because email should not contain confidential taxpayer information.
Massachusetts DOR Phone Number List 2026: Which Number Should You Call?
Use this table before you dial. Many Massachusetts DOR topics use the same Contact Center number, but child support and local municipal finance questions have different paths.
| Need | Official contact path | Use this for | Prepare before calling |
|---|---|---|---|
| Main tax contact center | 617-887-6367 | Massachusetts personal income tax, business tax, refund access, notices, bills, account help and tax questions. | SSN/ITIN or FEIN, address, tax year, tax type, letter received and short summary. |
| Toll-free in Massachusetts | 800-392-6089 | Toll-free taxpayer assistance for callers in Massachusetts. | Same records as above: ID, address, return, payment and notice information. |
| Phone hours | 9 a.m.–4 p.m., Monday–Friday | Mass.gov lists these hours for DOR Contact Center phone support. | Call earlier in the day if your issue may require identity verification. |
| Refund questions | Check online first; call 617-887-6367 or 800-392-6089 | Refund status if you cannot access MassTaxConnect or need additional assistance. | Tax year, SSN/ITIN and exact refund amount. |
| MassTaxConnect login help | MassTaxConnect support online or DOR Contact Center | Login, registration, secure message, transcript, payment agreement and account access issues. | Email/login, authentication method, taxpayer ID, account type and recent filing/payment records. |
| DOR notices and bills | MassTaxConnect secure e-message or 617-887-6367 | Notice of Change, Notice of Assessment, bills, missing return notices and account-specific questions. | Notice number, tax period, amount, filing record and payment confirmation. |
| Business taxes | 617-887-6367 or 800-392-6089 | Sales/use tax, withholding, corporate excise, meals tax, room occupancy tax, business registration and payment issues. | FEIN, business name, MassTaxConnect account, tax type, period and location details. |
| Child Support Services | 800-332-2733 or 617-660-1234 | Child support case questions, case manager issues, payments, enforcement, changes and service enrollment. | Case number, participant name, last four digits of SSN, court order and payment records. |
| Division of Local Services | Use the official DLS pages and staff directory | Municipal finance, local property taxation, Gateway, municipal data and city/town support. | Municipality, fiscal year, report, local official contact and DLS program area. |
| Email contact | Use official DOR email/contact forms only for non-confidential questions | General questions where no SSN, tax liability, bank information or account-specific data is needed. | Do not email confidential taxpayer information. |
Massachusetts DOR Contact Helper: Find the Right Phone Number
Choose your issue and this helper will show the best contact path, what to prepare and which official page to open first.
Select your issue. The helper will show the best starting phone path, what to prepare and the official link to use first.
Massachusetts DOR Refund Phone Number: Check Refund Status Before Calling
For Massachusetts personal income tax refunds, use online refund status first when possible. Mass.gov says you need the tax year of the refund, your SSN or ITIN, and the refund amount. If you do not have access to MassTaxConnect, you may call 617-887-6367 or toll-free in Massachusetts at 800-392-6089.
Before calling about a refund
- Have the tax year of the refund ready.
- Have your SSN or ITIN ready.
- Have the exact refund amount from your return.
- Know whether you filed electronically or on paper.
- Check whether a DOR letter or identity verification request arrived.
- Log in to MassTaxConnect if you can access your account.
Best refund contact path
Use the online “Where’s my refund?” service first. Call only when you cannot use MassTaxConnect, when your status creates a specific question, or when DOR correspondence asks for action. The phone numbers are 617-887-6367 and 800-392-6089 toll-free in Massachusetts.
| Refund situation | Best action | What to prepare |
|---|---|---|
| You just filed | Check MassTaxConnect or refund status before calling. | Tax year, SSN/ITIN and refund amount. |
| No MassTaxConnect access | Call 617-887-6367 or 800-392-6089. | Identity details, return copy and refund amount. |
| Refund changed or reduced | Look for a DOR notice explaining the adjustment. | Notice, tax return, credits, payments and prior balances. |
| Paper return delay | Allow extra processing time before calling repeatedly. | Mailing date, tracking if available and copy of return. |
| Identity or fraud concern | Use official DOR identity theft/refund guidance. | Letter, government ID and DOR instructions. |
MassTaxConnect Contact Help: Login, Secure Messaging, Transcripts and Payment Agreements
MassTaxConnect is usually the fastest and most secure way to ask account-specific questions. Mass.gov says taxpayers can log in to send secure messages 24/7, inquire about refunds, view transcripts and set up payment agreements.
Use MassTaxConnect for
- Secure messages about your specific tax account.
- Personal income tax account access.
- Business tax account filing and payment.
- Refund inquiry and refund status access.
- Transcript viewing.
- Payment agreements.
- Address updates and account management.
- Notices and account correspondence.
Call when MassTaxConnect does not solve it
Call 617-887-6367 or 800-392-6089 if you cannot log in, cannot verify identity, do not understand a notice, need help with account access, or a MassTaxConnect action is blocked.
- Have username/email if known.
- Have SSN/ITIN or FEIN ready.
- Have recent return or payment details.
- Have your DOR letter or account message open.
Massachusetts DOR Notices and Bills Phone Help: Notice of Change, Assessment and Balance Due
If you received a DOR notice or bill, do not ignore it. Mass.gov says questions about notices such as Notice of Change or Notice of Assessment can be handled by secure e-message through MassTaxConnect 24/7 or by calling the Contact Center at 617-887-6367 during normal business hours.
| Notice or bill issue | Best contact path | Prepare before calling |
|---|---|---|
| Notice of Change | MassTaxConnect secure message or 617-887-6367. | Notice, tax year, changed line item, return copy and supporting records. |
| Notice of Assessment | Secure message or phone during business hours. | Assessment notice, deadline, tax type and payment/filing records. |
| Balance due | MassTaxConnect account review, payment agreement tools or Contact Center. | Amount, tax period, payment confirmation and bank records. |
| Missing return notice | Verify filing status and contact DOR if records conflict. | Return copy, e-file confirmation or mailing proof. |
| Penalty or interest | Review due date, payment date and account details. | Notice, payment record, extension confirmation and explanation. |
| Fraud or suspicious notice | Use official Mass.gov contact pages and do not call numbers from suspicious messages. | Letter, envelope, email headers, phone number and account details. |
Massachusetts DOR Business Tax Phone Number: Sales Tax, Withholding, Corporate Excise and Registration
Businesses commonly use the same DOR Contact Center numbers, 617-887-6367 and 800-392-6089, plus MassTaxConnect for business registration, filing, payment and notices. Business tax topics can include sales and use tax, withholding tax, corporate excise tax, meals tax, room occupancy tax and business account registration.
Business callers should prepare
- FEIN and legal business name.
- MassTaxConnect account access or username.
- Tax type and filing period.
- Business location and responsible party details.
- Sales tax, meals tax or room occupancy records if applicable.
- Withholding or payroll records if applicable.
- DOR notice, bill or payment confirmation.
Use online tools first when possible
Many business tax actions can be handled in MassTaxConnect without waiting on the phone. Use the portal for registration, filing returns, making payments, updating account details, sending secure messages and reviewing correspondence.
| Business issue | Best path | Call when |
|---|---|---|
| Register business tax account | MassTaxConnect business registration. | The portal blocks registration or you are unsure which tax type applies. |
| Sales and use tax | MassTaxConnect filing/payment and business tax pages. | There is a notice, rate issue, filing mismatch or payment problem. |
| Withholding tax | MassTaxConnect and withholding guidance. | Payroll filings, 1099/W-2 submissions or account balance do not match. |
| Corporate excise | Business taxes and corporate excise guidance. | Notice, extension, payment, amendment or account question needs review. |
| Room occupancy or meals tax | MassTaxConnect and business tax resources. | Registration, local rate, return or payment question is unclear. |
Massachusetts DOR Child Support Phone Number: Case Manager, Payments and Questions
Massachusetts DOR includes Child Support Services, but child support questions do not use the same tax contact number. Official Child Support Services contact pages list 800-332-2733 and 617-660-1234 for child support customer service.
Use Child Support Services for
- Child support case questions.
- Payment or disbursement questions.
- Case Manager login or account issues.
- Applying for child support services.
- Enforcement, review or modification questions.
- Questions from parents who pay or receive child support.
Prepare before calling child support
- Child support case number if available.
- Name, address and last four digits of SSN.
- Court order or case document.
- Payment record or employer withholding detail.
- Case Manager access information if relevant.
Massachusetts DOR vs Wrong Agency: When Not to Call the DOR Tax Contact Number
Some Massachusetts questions sound like DOR questions but are handled by another office. Use this table before waiting on hold.
| Your issue | Likely correct place | Why |
|---|---|---|
| Federal IRS refund, federal transcript or EIN | IRS | Massachusetts DOR cannot access federal IRS refund or EIN systems. |
| Local property tax bill | Your city or town collector/assessor | Local property tax bills and assessments are usually municipal. |
| Motor vehicle excise bill | Your city or town | Mass.gov explains motor vehicle excise is paid to your city or town. |
| LLC/corporation formation | Massachusetts Secretary of the Commonwealth | DOR handles tax accounts, not entity formation records. |
| Unemployment benefits | Massachusetts unemployment agency | DOR does not decide unemployment benefits claims. |
| Professional license | Relevant licensing board | Business taxes and professional licenses are separate. |
| Child support case | DOR Child Support Services | Use the child support phone path rather than the general tax number. |
Before You Call the Massachusetts Department of Revenue: Documents, Timing and Privacy
A successful DOR call depends on preparation. The Contact Center may need to verify identity before discussing account details. Do not email confidential taxpayer information, and do not use phone numbers from suspicious texts or emails.
Prepare this before calling
- Full legal name and current address.
- SSN/ITIN for individual tax or FEIN for business tax.
- Tax year and tax type.
- DOR notice, bill, letter ID or assessment reference.
- Refund amount if calling about a refund.
- MassTaxConnect username/email if calling about login.
- Payment confirmation, bank record or payment agreement details.
- Return copy, amended return or transcript request details.
Call strategy
- Use MassTaxConnect secure messaging first for account-specific questions.
- Call between 9 a.m. and 4 p.m., Monday through Friday.
- Write your question in one or two sentences.
- Keep a note of the date, time and phone number called.
- Ask which office handles the issue if you are transferred.
- Keep confirmation numbers and representative guidance in your records.
Official Massachusetts DOR Contact Sources and Safe Links
Use these official sources for final confirmation before sharing sensitive information, making a payment, requesting a refund or responding to a notice.
Official-site safety check
Mass.gov explains that official Massachusetts government websites use Mass.gov. Before entering SSN, bank information, taxpayer account data or child support details, type the official address yourself or use an official Mass.gov page.
Why secure messaging matters
Taxpayer account questions often involve private information. For account-specific issues, MassTaxConnect secure messaging is safer than ordinary email because non-secure email should not include confidential tax details.
Massachusetts Department of Revenue Phone Number FAQs
Visible FAQs below match the FAQPage schema included at the end of this article.
What is the Massachusetts Department of Revenue phone number?
The main Massachusetts DOR Contact Center number is 617-887-6367.
What is the Mass DOR toll-free number?
The toll-free Massachusetts DOR number for callers in Massachusetts is 800-392-6089.
What are Massachusetts DOR phone hours?
Mass.gov lists DOR phone hours as 9 a.m. to 4 p.m., Monday through Friday.
What should I have ready before calling Massachusetts DOR?
Have your Social Security number, address, tax year, tax type, DOR letter or business account details ready to speed up the call.
What is the Massachusetts tax refund phone number?
If you do not have access to MassTaxConnect, you may call 617-887-6367 or toll-free in Massachusetts at 800-392-6089 for refund help.
What information do I need to check a Massachusetts refund?
You need the tax year of the refund, your SSN or ITIN and the refund amount.
Is MassTaxConnect better than calling?
For account-specific questions, MassTaxConnect secure messaging is often the fastest and safest option because it protects confidential taxpayer information.
Can I email Massachusetts DOR my Social Security number?
No. Do not send confidential taxpayer information such as Social Security number, tax liability amounts or account-specific details by non-secure email.
What number do I call for MassTaxConnect login help?
Use MassTaxConnect online help first. If you still need help, call the DOR Contact Center at 617-887-6367 or 800-392-6089 in Massachusetts.
What is the Massachusetts DOR child support phone number?
Child Support Services can be reached at 800-332-2733 or 617-660-1234.
Is child support the same as the DOR tax contact center?
No. Massachusetts DOR includes Child Support Services, but child support has separate customer service contact paths.
Can Massachusetts DOR help with IRS federal tax questions?
No. Federal refunds, federal tax transcripts, federal IRS notices and EIN issues generally belong to the IRS, not Massachusetts DOR.
Can Massachusetts DOR help with my property tax bill?
Usually no. Local property tax bills and assessments are typically handled by your city or town collector or assessor.
Can Massachusetts DOR help with motor vehicle excise?
Mass.gov provides information about motor vehicle excise, but the bill is generally paid to your city or town.
What should I do if I received a DOR notice or bill?
Read the notice carefully, gather your tax year, notice number and records, then use MassTaxConnect secure messaging or call 617-887-6367.
Can I set up a payment agreement with Massachusetts DOR?
Mass.gov says taxpayers can use MassTaxConnect to set up a payment agreement.
Where can I view Massachusetts DOR transcripts?
Mass.gov says taxpayers can view transcripts through MassTaxConnect after logging in.
What is the official Massachusetts DOR website?
The official Massachusetts Department of Revenue pages are hosted on Mass.gov, and MassTaxConnect is the official online tax account portal.
Is this website the official Massachusetts DOR website?
No. This is an independent informational guide. Use official Mass.gov and MassTaxConnect pages for filing, payments, refunds and legal tax decisions.
What is the fastest way to ask an account-specific Massachusetts DOR question?
Log in to MassTaxConnect and send a secure message about your tax account 24/7.
Final Recommendation: Call the Right Massachusetts DOR Contact Number
For most Massachusetts DOR tax questions, start with 617-887-6367 or toll-free in Massachusetts at 800-392-6089 during 9 a.m.–4 p.m., Monday through Friday. For account-specific questions, MassTaxConnect secure messaging is often better than ordinary email. For child support, use 800-332-2733 or 617-660-1234. For property tax bills, motor vehicle excise bills, IRS issues and business entity filings, contact the correct local, federal or Secretary of the Commonwealth office instead of the DOR tax hotline.
Last editorial update: June 6, 2026. Verify final phone numbers, call hours, account instructions and legal tax details on official Mass.gov and MassTaxConnect pages.