Every non-resident LLC needs a US address. That means a registered agent - a service that receives legal correspondence on your behalf and gives your business a legitimate US presence. This is standard, legal, and required by every state.
The problem in 2026 is more specific than most guides acknowledge. Certain high-volume registered agent addresses - particularly common ones in Sheridan, Wyoming - are appearing on so many LLC applications that bank compliance systems are treating them as a risk signal. It's not that the address is invalid. It's that the same address appears on tens of thousands of other LLCs, and automated systems flag that pattern.