When making your mission trip budget for a group mission trip, it is helpful to distinguish the shared cost of the trip from personal expenses. As a trip leader, you’ll need to clearly budget for and communicate both the personal and group costs with participants, but personal costs are often covered out-of-pocket by participants themselves.
Be sure you communicate clearly about your budget. Let mission trip participants know what their payment will cover, and if they will need to cover any other costs on their own. If your church is covering part of the cost, let participants know the full cost of the trip, as well as the portion they are responsible for paying.