The most important thing about designing invitations for a surprise 40th birthday party is to include a line or two about the party being a surprise. You want to ensure that no one gives away your surprise to the birthday honoree. Be certain that you add an RSVP telephone number that does not belong to your birthday honoree.

If the upcoming celebration is for your spouse, you might want to give your work phone number or a cell phone number for guests to RSVP. This will help to ensure that your party remains a surprise to the birthday honoree until the moment they arrive at their special celebration. Surprise parties are an excellent way to mark the turning of forty.

Just be certain that everyone who receives an invitation knows that the party is a surprise. You certainly do not want your birthday honoree to learn about their special celebration before you have a chance to surprise them.

If you are adding a line or two to the invitation for directions, be certain that you give clear and precise instructions about where the celebration will be held and what time guests should arrive. It is a good idea to have guests arrive at least thirty minutes before they birthday honoree arrives. This gives you plenty of time to ensure that all guests have made it to the celebration before your special birthday honoree.