Exactly, and American single-owner LLCs can pay taxes very simply on their personal 1040 tax form.

It's only if you elect your LLC be taxed as an S-corp or C-corp, or incorporate as a real corporation that taxes need to get complicated.

But if you are an online company with even just customers in California or a single employee, the CA tax board will chase you to the ends of the earth to get their $800 minimum franchise tax. That is whether you make a single dollar or not. Doesn't matter if you live there, are registered there, or have offices there. If you have an employee or a minimum level of sales or even contractors in CA, they want the greater of $800 annually or a tax on the proportion of profit made from California customers.