When you get a letter from the IRS, what should you do? You should know the different kinds of notices that the IRS can send out. The IRS has over 500 different notices that can be sent out. Based on the notice number, we will respond accordingly. Because we have a copy of the IRS Manual we know every notice. We know why they are sent out, thus we know what the IRS is looking for with each notice. Knowing their playbook allows us to stay on top of the game.