Bah Calculator 2025 Navy India. The 2025 basic allowance for housing, or bah, average rates for military service members will increase by 5.4%. In 2025, the department of defense is asking for a 4.5% increase in the national average for basic allowance for housing (bah).

However, some bah rates are not tied to location. The national average increased by 5.9%, while indiana duty stations were given.