New Electronic Filing System – MassTaxConnect – Is Now Live

MassTaxConnect: The New Way to File Taxes

DOR will be regularly sending you updates on our new tax filing system—MassTaxConnect—which will make filing taxes simpler, quicker, and more efficient than ever before!

Earlier this morning DOR officially launched its newest online portal for filing and paying business taxes in the Commonwealth: MassTaxConnect. MassTaxConnect has replaced WebFile for Business, offering all the benefits the old system offered, along with a host of new functionalities that will make paying and filing taxes in Massachusetts easier, simpler, and more efficient than ever before.

Users can access MassTaxConnect at the following URL: mass.gov/masstaxconnect

Same username and password! As someone who has filed or paid taxes online with us in the past, you’ll be able to immediately log-in to MassTaxConnect using your WebFile for Business username and password.

Identity verification! The first time you log on to MassTaxConnect from a new computer, you will be asked for an authentication code as an additional security measure.  Request the code in the pop-up window and enter it on the login page.  Be sure to click “trust this computer,” and you’ll only have to do this once for any given computer.

MassTaxConnect Resources! To help make the transition to the new system as smooth and seamless as possible, we’ve redesigned our MassTaxConnect informational page with an arsenal of resources at your disposal. This includes tutorials, FAQs, and DOR contact information if the site does not adequately answer your questions.

Video Tutorials! Perhaps most importantly, DOR has put together a series of mini-video tutorials that show you step-by-step how to complete the following tasks in MassTaxConnect:

  • Log-in as an existing WfB user
  • Log-in as a new user (non-WfB users)
  • Add, access, and manage your accounts
  • File a return
  • Pay a bill
  • View and file and amended return
  • Authorize a 3rd party to manage your account
  • Request 3rd party access to an account
  • Send an e-message, including with an attachment
  • Update my address or my contact information?
  • File a dispute of audit or penalty (abatement request)
  • Access DOR letters and notices
  • Get on a payment plan for money I owe

Account ID Once you’re in the system, you’ll notice that you have a new alphanumeric account identification number. This will replace federal employer identification numbers and other personally identifiable information. Doing so will enhance the security of our system and protect your identity from fraudsters. Take note: You’ll also soon be receiving a letter in the mail with your new account ID.

With MassTaxConnect, filing and paying taxes just got easier. We hope you enjoy using the new system and we look forward to hearing from you.

We are continually providing updated information about MassTaxConnect on our website. mass.gov/dor/mtcinfo 

  If you have any specific questions or comments about the upcoming transition to MassTaxConnect that are not answered on our website, please email MTCinfo@dor.state.ma.us