Not so fast. These are getting formed in Delaware, but I believe if you operate in another state you have to register and may be subject to their taxes.<p>In California there is a &quot;gross receipts tax&quot; based on revenue for an LLC. Do over a million dollars? Pay $6,000 in LLC Fees. Fine for a software co or a law firm not a huge deal.  Ecommerce can be a crazy low margin business though and many Stripe customers could get hurt.<p><a href="http:&#x2F;&#x2F;www.sandiegobusinesslawyerblog.com&#x2F;2013&#x2F;05&#x2F;californias-gross-receipts-tax.html" rel="nofollow">http:&#x2F;&#x2F;www.sandiegobusinesslawyerblog.com&#x2F;2013&#x2F;05&#x2F;california...</a>