Limited liability companies (LLCs) are a popular choice of entity for small businesses and investment activities.

LLC owners are called members.

Single-member LLCs have one owner, although spouses who jointly own an LLC in a community property state can elect treatment as a single member LLC for federal income tax purposes. We will call LLCs with two or more members multimember LLCs.

Key point: LLCs are not corporations. But LLCs can offer similar legal protection to their members (owners).

Here are the most important things to know about LLCs.

LLCs Offer Legal Protection

Using an LLC to conduct a business or investment activity generally protects your personal assets from LLC-related liabilities—similar to the legal protection offered by a corporation.

As you know, liabilities can arise from simple things—like the Federal Express guy slipping on the banana peel someone left on your front steps—or in seemingly endless and complicated ways if you have employees.