As a business owner, you're entering into transactions potentially on a daily basis. Suppose you enter into a transaction with someone, hurrying to get the deal closed as you're set to rake it in. It comes around to December, and your accountant is preparing a projection of what your tax liability will likely be for the year.
Then you get a call that you're going to owe a boat load of money to the government for that transaction you failed to consult with your accountant about beforehand. What do you do now?