The start of online sports gambling came a little over a month after the state began allowing in-person sports betting at the state's three casinos — Encore Boston Harbor in Boston, Plainridge Park Casino in Plainville, and MGM Springfield in Springfield.
Lawmakers estimate that sports betting could generate about $60 million in annual tax revenue and $70 million to $80 million in initial licensing fees, which must be renewed every five years. The law includes a 15% tax on in-person wagering and 20% tax on mobile wagering.