Questions?
100 Cambridge St.
Contact:
www.mass.gov/info-details/massdep-contacts-by-topic
Boston, Massachusetts 02108
Web:
www.mass.gov/orgs/massachusetts-department-of-environmental-protection
DEP Revenue Helpline: 617-645-0057 | Fax: 617-556-1049
There is a 2.59% convenience fee for credit card payments, a 2.09% convenience fee for debit card payments, and a $0.35 convenience fee for Electronic Check/ACH payments. All convenience fees are non-refundable.
ACH FAQ.