Although salary may be secondary to doing what you feel called to do as a theology major, it can be an important factor in making a career choice. Your yearly salary will depend on what kind of career you work in, from education to mission work to clergy. It will also depend on factors such as your geographical location and whether you work for a nonprofit, public, private or government institution. However, according to the Bureau of Labor Statistics, the average annual salary for all theology majors is $32,070.