The main benefits of having an online business include increased visibility, reduced overhead costs, greater flexibility, and the ability to reach a wider audience. Increased visibility means that customers can easily find your business online, reducing overhead costs as you don't need a physical store or office, and providing greater flexibility as you can work from anywhere in the world–better yet, do your business at home. Additionally, selling online gives you the ability to reach a much larger audience than a physical business, allowing you to expand your customer base and increase sales.