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Business 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.

Updated: September 10, 2026

Learn how to register your business with MassTaxConnect — DOR's web-based application for filing and paying taxes. You can also learn how to apply for an Employee Identification Number (EIN), request a certificate of good standing, or find out about the latest business tax credits.

From verifying a sales and use tax resale certificate to finding the latest information on corporate excise and withholding tax — we look forward to working with you.

What would you like to do?

Top tasks

Log in to MassTaxConnect  Make a payment with MassTaxConnect  Tax Information for Businesses New to Massachusetts  

All other tasks

Register Your Business with MassTaxConnect  Remote Seller and Marketplace Facilitator FAQs  Request a Certificate of Good Standing and/or Corporate Tax Lien Waiver  Verify a sales or meals tax certificate  Submit annual certification of entity tax status   Amend your tax return or request an abatement of tax   Apply for an Employer Identification Number (EIN)  Request a motor vehicle sales or use tax abatement  Individuals & Businesses: Update your name or address with DOR  Paid Family and Medical Leave (PFML)  Closing Your Massachusetts Business Registration 

What you need to know

Business Tax Credits  Sales and Use Tax  Withholding  Corporate Excise   Room Occupancy Excise Tax  Cigarette and Tobacco Excise  Motor Fuel Excise   Marijuana Retail Taxes  Sales Tax on Meals  Alcoholic Beverage Excise  Sales and Use Tax on Motor Vehicles  Out-of-State Contractors and Subcontractors  Sales Tax on Telecommunications  Satellite Service Excise   Massachusetts Convention Center and Police Training Surcharges   Tradeshow and Flea Market Promoters   Materialman  DOR Sales Tax Direct Payment Permit Program  

Contact Information

Phone

Contact Center Call DOR Contact, Contact Center at (617) 887-6367
Toll-free in Massachusetts Call DOR Contact, Toll-free in Massachusetts at (800) 392-6089

9 a.m.–4 p.m., Monday through Friday

Online

Contact the Massachusetts Department of Revenue
Log in to MassTaxConnect
Sign up for DOR updates
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