Choosing the right business structure is one of the most important financial decisions you'll make as a business owner. Whether you're starting your first company, branching out with a subsidiary, or looking to restructure an existing business, the entity you select will influence everything from your taxes to your legal liability. There's no one-size-fits-all solution. The best option depends on the size of your business, how it's funded, and your long-term goals. Before you make a decision, it's smart to understand the basics of the three most common structures: LLCs, S-Corps, and C-Corps.