If you registered your business as a corporation, the IRS automatically makes you a C-corp. This has many tax disadvantages, making it hard for small businesses to remain profitable. Fortunately, businesses can file IRS Form 2553 and choose to be an S corporation instead.
The largest benefit of filing as an S-corp is the tax savings. The shareholders bear the burden of the corporation’s net income, paying taxes at their personal tax rate rather than the corporate tax rate, which is 21% plus the personal tax rate of any earnings.