I created a python code with if else condition and if inside if. Isn't working. any one can help?

if (employee.x_exemption_status == "s"):
    if (categories.TAX > 2083) and (categories.TAX < 2500):
       result = (categories.TAX - 2083) * 0.05
    elif (categories.TAX > 9000) and (categories.TAX < 9100):
        result = (categories.TAX - 2083) * 0.05