Cruising can be an excellent way to visit multiple destinations without the hassle of constantly packing and unpacking. However, many first-time cruisers are surprised to discover that the advertised fare isn't always the final price.

Many major cruise lines—particularly U.S.-based operators—automatically add daily gratuities to each passenger's onboard account. These charges help compensate crew members, including cabin attendants, dining staff, and other behind-the-scenes employees who contribute to the guest experience.

For example, Royal Caribbean currently charges $18.50 per person, per day for guests staying in standard cabins. On a seven-night cruise, that adds up to $129.50 per person, or $259 for two adults, before accounting for drinks, shore excursions, or other onboard purchases.

Not every cruise line handles gratuities the same way. Many British cruise operators, including P&O Cruises, include gratuities in the upfront fare, while several American cruise lines list them separately and add them throughout the voyage.

Some passengers also choose to leave additional cash tips for crew members who provided exceptional service. While these extra tips are optional, they're common on many U.S.-based cruise lines.

Planning for gratuities before your trip can help you avoid an unexpected bill at the end of your vacation and give you a more accurate picture of your total cruise costs.

The Takeaway: Daily gratuities are a standard part of cruising on many major cruise lines. Before booking, check whether they're included in your fare so you can budget accordingly and avoid surprises when your cruise ends.