When the day of your wedding comes, don’t be unprepared! Know ahead of time what to do about gratuity. Some places include gratuity in their contracts; others expect a tip for their services; and still others don’t expect anything beyond their contracted fee. How do you know who you need to tip and when? You should always check your contracts to make sure gratuity is or isn’t included, but if it’s not, this guide will straighten things out for you:

Hairstylist/Makeup artist: A 15 to 20 percent tip at the time of service is expected.

Officiant/Clergy: While an officiant typically does not require you to compensate for his services, he will expect you to make a contribution to his church or organization. $100 is usually a good starting point, and a tip to the officiant himself could be given as well. A good time to tip the officiant is right after the rehearsal or ceremony. Have cash envelopes prepared for all vendors in advance. Traditionally it is the best man’s duty to take care of tips on your behalf on your wedding day, but if this is not an option, entrust the task to someone else, like the father of the bride.

Musicians for Ceremony: $25-40 is considered an appropriate amount to tip your ceremony musicians. You can also tip them right after the ceremony.

Delivery staff (including set-up, florists, bakery, etc):  $5-$25 per person at the time of delivery. Base the amount you tip on the difficulty of tasks—for example, the people setting up your giant wedding tent should probably be tipped on the higher end, while the delivery person dropping off the cake may not need as much.

Wedding Day Transportation: Check and make sure this is not already included in your contract. If it isn’t, tip 20 percent of the total cost either in advance or once the service is completed. (It can be a good idea to wait until the end of day to ensure you will receive the best service possible.)

Reception Hall Manager: Again, check and make sure it is not in the contract in the form of a service charge. Clarify with the manager who the service charge goes to (it may be a small fee added for the manager, or it may be a larger fee that goes to all wait staff and attendants). Don’t be afraid to ask! If a service charge is not included, 15 to 20 percent of the total bill or $1-$2 per guest is appropriate. Have your best man give this to the manager at the end of the reception.

Wait staff (at rehearsal dinner and reception): If gratuity is added, clarify what it covers (some caterers use it to pay servers’ wages, while other caterers may use it to cover time spent for meetings, planning, and overhead costs). If gratuity is not added, tip 18 to 20 percent per person. You may always tip more if you’d like, depending on the level of service you receive. Wait until the end of the dinner or reception to tip each server (you can give the envelopes to the reception hall manager to distribute).

Bartenders: If the bar manager has not already added a service charge to the bar bill, tip the bartenders 10 percent of the total amount of the liquor bill at the end of the reception. This can then be divided evenly among the bartenders if there are two or more.

Attendants (powder-room, coat-check and parking): Each person should receive about $1-$2 per guest at the end of the reception. For parking attendants, base the amount on $1-$2 per car.

DJ/Musicians at Reception: This gratuity may be included in the contract, but if it’s not, they should receive a 5 to 20 percent tip at the end of the reception.

The following vendors will not typically expect a tip, but it is certainly always appreciated, especially if you feel a vendor has gone above and beyond in the quality of his or her service:

Photographer and assistant
Wedding planner
Florist
Caterer
Cake Baker
Bridal and tuxedo shop consultants
Seamstress
Videographer
Jeweler