The most complicated tax entity is the corporation.
Unlike a sole proprietor, corporations must keep very detailed bookkeeping. Sole proprietors can commingle money between their personal finances and the business. If you are doing business as a corporation you must pay yourself wages (W-2).
Corporations cannot use the corporate checkbook for personal expenses. Many small business people have difficulty adhering to this regulation. A small business just starting out may be better off not forming a corporation.
If you decide to from a corporation you will have to make a choice between a “C” corporation or an “S” corporation.
The “S-corp” is taxed as a pass-through, meaning no tax is paid by the corporation. All of the income and deductions are passed-through to the shareholders.
A “C-corp” is taxed at the corporate level and then taxed again at the individual level.