Wondering how to form an S-corp if you have an LLC? It may take a few steps, but it is by no means complicated. You need to file a specialized tax form to make an S-corp election. This form, called the S-corp Form 2553, must be completed by all shareholders involved.
Because of the one-class-of-stock restriction, an S corporation cannot allocate losses or income to specific shareholders. Allocation of income and loss is governed by stock ownership, unlike partnerships or LLCs taxed as partnerships where the allocation can be set in the partnership agreement or operating agreement.
The biggest difference between S corporations and LLCs is how they are taxed. S corporations are taxed as pass-through entities, meaning that the profits and losses are passed through to the shareholders' personal tax returns, while LLCs can choose to be taxed as either a pass-through entity or a corporation.