WebFile for Income was closed on November 6 and will be replaced by MassTaxConnect, DOR’s new tax revenue system, on Monday, December 5 at 9:00 a.m. If you had a username and password for WebFile for Income, you can use those same credentials for MassTaxConnect in December. Go to mass.gov/dor/MTCinfo for more information and resources on how to access and use MassTaxConnect. Any questions during the transition period should be directed to Customer Service at 617-887-6367.