International Shopify sellers run into the same set of problems: Stripe pauses, PayPal holds, customers asking 'where are you based,' and tax reporting confusion. A U.S. LLC doesn't solve everything, but it solves more than people realize.
Payment processor stability
A U.S. LLC gives you access to U.S. Stripe and U.S. PayPal — typically less prone to sudden holds than their international counterparts. Combined with a U.S. bank account (Mercury, Relay), payouts get a lot more reliable.
Customer trust
U.S. customers tend to trust U.S.-based businesses for refunds, warranties, and customer service expectations. A clean U.S. operating address helps.