The new rates for all ships, except Norwegian Sky, are going from $13.50 to $13.99 per person, per day for categories up to mini-suite. The daily rate for suite passengers is going from $15.50 to $16.99.
Norwegian Sky's daily service charge is going up to $18.99 per person for inside, ocean-view and balcony staterooms, and to $21.99 for suites.
NCL said the higher rates for Norwegian Sky reflect the demands of its all-inclusive product. Drinks are included on Norwegian Sky's short Bahamas cruises from PortMiami. The ship will be adding an overnight stay at Havana, Cuba, on four-day sailings starting in May, through the end of the year. The other port on those cruises is Great Stirrup Cay.
The gratuities cover the room steward, restaurant servers and behind-the-scenes support staff.
Passengers who book before March 31 can pre-pay their tips at the current rate if done prior to sailing. Those with existing reservations who have already pre-paid gratuities at the current rate are not affected.