How much you make in the military depends on what branch you are in and what you're in. For example, a private first class, in the army for two years, can make about 17,000 per year. A staff sergeant, in for six years, can make around 33,000. An E3, in the military, can make around 35,000 a year. On top of their salary, military personnel are also supplied with cost for housing and other bonuses and expenses.