New rules banning 'junk fees' are now in effect in Mass. Here's what to know.

“Junk fees” are banned in Massachusetts as of Tuesday.

Junk fees are “hidden, surprise, or unnecessary costs that increase the total price of a product beyond the advertised price” that businesses often don’t disclose until the end of the transaction,” according to the state Attorney General’s Office .

“Similarly, some businesses have engaged in practices related to trial offers, subscriptions, and automatic and recurring charges to conceal the total cost and nature of a product or service, while making it difficult for consumers to cancel or opt-out of such features.”

From additional renter’s fees to online trial offers, any undisclosed fees listed after a consumer provides personal information are now a violation of the Massachusetts Consumer Protection Act.

“Today, as we build up