Tax Professionals

Information for tax professionals

New! What We Heard from You – Questions from Tax Practitioners
DOR responds to your questions and feedback from the latest tax season.

Hot Topics at DOR
News of DOR events that may impact multiple taxpayers
Updates are posted until issues are resolved

Tax Professionals Feedback
Notify us of anything affecting multiple taxpayers
Or, give us your recommendations and feedback anytime

POAs and Third party authorizations

2018 Personal Income Tax Changes

E-Filing Options Using Commercial Software

E-Filing and Payment Requirements

What you can and can't do on MassTaxConnect

When to file an amended return

Who’s a Massachusetts resident, non-resident or part-year resident?

Additional Information

Filing Season Information

Administrative Procedures – Learn how things work at DOR

DOR Legal Library – Regulations, TIRs, Directives and more

Information for New Businesses

Tax Bills, Collections, Audits, Appeals

Offers in Final Settlement

Voluntary Disclosure Program

DOR Phone numbers and locations

DOR News


Tax Professionals was last updated on December 13, 2019.