📝 Overview
This guide covers state tax information for employers running payroll in Massachusetts. Use the sections below to find agency contact information, supported tax filings, and the account details required for tax setup.
⚙️ Massachusetts Tax Information
Click the arrow to view Withholding information
Click the arrow to view Withholding information
Agency Information
Website: Massachusetts Department of Revenue
Phone: (617) 887-6367
Supported Tax Filings
Employer's Return of Income Taxes Withheld (M-941)
Wage and Tax Statement (W-2)
Required for Tax Setup
Withholding Account Number (11 digits, e.g., 01234567-890)
Filing Frequency (Quarter-Monthly, Monthly, Quarterly, or Annually)
Third Party Administrator (TPA) Access
DaySmart Payroll needs granted TPA access to pay and file this tax. Follow the instructions below to ensure there are no delays in processing:
Log in to MassTaxConnect at https://mtc.dor.state.ma.us/mtc/_/
Select the Manage My Profile hyperlink in the top right section of the panel
Select the More… tab, then select the View Access Requests from Third Parties hyperlink in the Third-party Access panel
Select the Approve/Deny hyperlink for the request
Select the checkbox in the Give Rights column
Select the access type in the Granted Rights column
Click the arrow to view Unemployment Insurance information
Click the arrow to view Unemployment Insurance information
Agency Information
Website: Massachusetts Department of Unemployment Assistance
Phone: (617) 626-5075
Supported Tax Filings
Employer's Quarterly Wage Report (WR-1)
Required for Tax Setup
Employer Account Number (8 digits, e.g., 12345678)
UI Contribution Rate (X.XX%)
Workforce Training Fund Program Rate (0.XX%)
Employment Medical Assistance Contribution Rate (0.XX%)
COVID-19 Recovery Assessment Tax Rate (X.XX%)
Third Party Administrator (TPA) Access
DaySmart Payroll needs granted TPA access to pay and file this tax. Follow the instructions below to ensure there are no delays in processing:
Log into your tax account at https://unemployment.mass.gov/Employers/_/
Click Log in
Enter your email address and password, then click Log In
Click the Additional Services link
Click the Manage third party administrator access link in the Access management panel
Click the Add third party administrator link
Review the list of items you'll need, then click Next
Enter 203245 in the Agent ID field, then click Next
In the grid that displays, select the checkbox for File wage reports and make payments
Respond to the prompt asking whether you want to grant the TPA access to perform benefit charges protest or wage and separation mailing; if you select Yes, choose the applicable access types
Click Next
Click Submit
Click the arrow to view Paid Family & Medical Leave (PFML) information
Click the arrow to view Paid Family & Medical Leave (PFML) information
Agency Information
Website: Massachusetts Department of Family and Medical Leave
Phone: (833) 344-7365
Supported Tax Filings
Employer's Return of Income Taxes Withheld (M-941)
Required for Tax Setup
Paid Family and Medical Leave Account ID (11 digits, e.g., PFM-01234567-890)
❓ Frequently Asked Questions (FAQs)
Find answers to common questions or additional details that may not be covered in the main instructions.
Click the arrow to view frequently asked questions
Click the arrow to view frequently asked questions
What are the additional rate components required for Massachusetts UI setup?
Click the arrow to see the answer
Click the arrow to see the answer
In addition to your base UI Contribution Rate, Massachusetts requires three sub-rates: the Workforce Training Fund Program Rate, the Employment Medical Assistance Contribution Rate, and the COVID-19 Recovery Assessment Tax Rate. All four rates are assigned by the Massachusetts Department of Unemployment Assistance and are included in your annual rate notice.
Where do I find my Massachusetts PFML Account ID?
Click the arrow to see the answer
Click the arrow to see the answer
Your Massachusetts PFML Account ID is an 11-digit number prefixed with "PFM" (e.g., PFM-01234567-890). It is assigned through MassTaxConnect when you register for PFML. If you cannot locate it, log into your MassTaxConnect account or contact the Department of Family and Medical Leave at (833) 344-7365.
Where do I find my Massachusetts withholding account number?
Click the arrow to see the answer
Click the arrow to see the answer
Your Massachusetts Withholding Account Number is an 11-digit number formatted as 01234567-890. It is assigned by the Massachusetts Department of Revenue when you register and can be found on agency correspondence or by logging into your MassTaxConnect account.