"Your average waiter probably gets paid around $15 an hour. With all the costs that the Holidays Act imposes on employers, they're getting paid more than the average price of a main. If you put it in terms like that, it sort of brings it into perspective of what it costs our businesses to be open on those days."
Surcharges date back to 2003 when the Labour Government changed the Holidays Act, which raised the cost of employing people on statutory days.
Ms Bidois said those restaurants which chose not to charge extra today had likely factored the additional operating costs into their annual expenses.