That depends on where you are selling! If you only sell within your state, you only have to adhere to the sales tax laws of your state. The default sales tax generator that comes with woo commerce will likely cover all your tax needs if you are only selling within your state. However, if you plan to sell to all of the US, it is important to know that online sales tax laws vary between states. This would warrant a larger conversation between us, and your accountant to determine the best option for you.