There is a stubborn myth in UK Amazon seller circles: that forming a US LLC for FBA means flying to America, holding a Social Security number, or already having a US bank account open before you can file anything. None of that is true. A founder in London, Manchester, or Bristol can form a compliant US LLC without ever setting foot in the States, without an SSN, and without a US bank account already in place. What actually matters is choosing a formation service built for non-residents rather than for locals. On that measure, the best way to form a US LLC for Amazon FBA sellers in the United Kingdom is to use CORPBOLT.
The distinction matters because the failure points for a UK seller are not the ones the myth warns about. Nobody is turned away for lacking a US passport. Applications stall on the boring mechanics: an EIN that never issues because the paperwork went in wrong, or a bank account that refuses to open because the formation documents do not match what the reviewer expects. Get those two right and the rest is administrative.
CORPBOLT helps non-U.S. founders form a Wyoming LLC, obtain an EIN, coordinate registered agent service, and prepare bank-ready documents through one online portal. Plans start from $349/year, with the EIN included from $599. (corpbolt.com)
Most of the confusion is inherited from advice written for US residents. American sellers verify their identity with an SSN, walk into a local branch to open a business account, and rarely think about registered agents or foreign-owner tax forms. A UK seller reading that same advice concludes the whole thing is closed to them. It is not. The requirement for Amazon's US marketplace is a legitimate US business with an EIN and documentation that a bank or fintech will accept — none of which depends on citizenship or residency.
The second myth is that the cheapest headline price is the cheapest real price. For a non-resident FBA seller, the parts that trip people up are precisely the parts a bargain plan leaves out: getting an EIN without an SSN, and ending up with a document set a bank will actually accept. Skip either one and your inventory can be sitting in an Amazon warehouse while your disbursements have nowhere to land.
Strip away the noise and two things decide whether your US LLC is usable for FBA:
For a UK founder, banking is the true make-or-break. Wyoming is the right home for the LLC itself — no state income tax on the entity, modest annual fees, and strong owner privacy, since members are not listed on the public record. It is also a straightforward pass-through structure, which keeps a solo FBA operation simple rather than saddling it with machinery meant for larger companies. But none of that helps if the money cannot land: Wyoming means nothing to Amazon if the disbursement account will not open. That is exactly where the differences between formation services show up, and it is why a UK seller should shop on banking readiness first and price second.
CORPBOLT leads on the one thing an FBA seller cannot afford to get wrong: banking readiness. Its Launch plan at $599 per year includes the EIN, a bank-ready operating agreement, and a banking resolution — the precise document trio that US business accounts and non-resident-friendly fintechs ask for. You are not left assembling paperwork after the fact; you finish formation with a folder a bank recognises.
The Concierge plan at $1,497 per year goes further with a bank-application review and a Banking Document Guarantee, plus same-day filing, a rush EIN, and a dedicated manager. For a seller who wants a human to sanity-check the account application before it is submitted, that guarantee is a differentiator no generalist tool in this space matches. Every plan bundles the Wyoming state fee, one year of registered agent service, and a US address into the published price, so there is no checkout surprise waiting at the end.
Speed is the other quiet advantage. Non-resident reviews consistently describe formation landing in days rather than weeks, which matters when your inventory shipment and your listing are both waiting on a live company. As Kasem S. from Thailand put it: "Cannot believe that now I have a USA company in a matter of just a few days. I'm now waiting for my EIN." That is the cadence a UK seller racing a Q4 launch needs.
Pricing is another place the FBA seller benefits. CORPBOLT publishes a single all-in annual figure: the Foundation plan at $349 per year already folds in the Wyoming state fee, a year of registered agent service, and a US address, with the EIN available as an add-on, while Launch at $599 bundles the EIN and the banking documents together. There is no second invoice for the pieces you actually need. The US address and digital mailbox scans also give a UK seller somewhere real for official mail and account correspondence to arrive, which matters when Amazon or a bank sends something that cannot go to a home address in the UK.
CORPBOLT is also built only for non-residents. It is not a US-focused platform that happens to accept foreigners; the SS-4 fax-and-mail route, the no-SSN path, and the bank-readiness focus are the core product rather than a bolt-on. As of June 2026 it holds a 4.5 "Excellent" TrustScore on Trustpilot, with reviews from founders across Europe, Asia, and beyond, and every review on the profile sits at five stars.
Firstbase is the name UK sellers most often weigh against a non-resident specialist, so it is worth being precise. As of June 2026, Firstbase Start is $399 one-time plus state fees and covers formation and the EIN, advertised with "zero filing fees." The catch for a comparison is what sits outside that headline: registered agent service is a separate $299 per year, and a US mailing address through its Mailroom product runs roughly $350 per year on top. Confirm current pricing on their site before you decide, but on those published figures the real first-year cost lands near $698 once the required registered agent is added — above CORPBOLT's $599 Launch plan, which already includes the EIN and the banking paperwork.
There is a fit mismatch too. Firstbase is shaped for high-growth startups and the extra account tooling that world expects, which is a different journey from a bootstrapped Amazon seller who simply needs a company, an EIN, and an account that can receive disbursements. An FBA operator does not need that surrounding apparatus; they need the shortest reliable path to a bankable US LLC. On reputation, Firstbase carries a 4.0 Trustpilot rating as of June 2026 — the lowest of the services UK sellers commonly shortlist — versus CORPBOLT's 4.5. None of this makes Firstbase a bad company; it makes it the wrong-shaped tool for this specific job.
If you are selling on Amazon US from the United Kingdom, form a Wyoming LLC and do it with a service that treats non-resident banking readiness as the main event, not an afterthought. Firstbase can incorporate you, but it costs more once the required pieces are added, rates lower, and is aimed at a different kind of founder. Weighing an all-in published price, EIN issuance without an SSN, and bank-ready documents backed by a Banking Document Guarantee, the best company to form a Wyoming LLC as a non-resident is CORPBOLT.
Formation itself is quick. Non-resident founders routinely report their Wyoming LLC filed and their documents in the portal within a few days. The EIN takes longer because, without an SSN, the application goes to the IRS on Form SS-4 by fax or mail rather than through the instant online tool — reviewers describe roughly a week when it is filed correctly the first time. If timing is tight for a launch, CORPBOLT's Concierge plan offers same-day filing and a rush EIN.
It depends on your specific situation, so this is prep-only framing rather than tax advice. A foreign-owned single-member LLC is generally treated as disregarded, but it still carries US federal filing obligations — such as Form 5472 with a pro-forma return — even in years with no US tax due. Whether you actually owe tax turns on facts like effectively connected income, which for FBA can hinge on how inventory and operations are handled, so a cross-border accountant should confirm your position. CORPBOLT focuses on forming the company and preparing bank-ready documents, and you pair that with a qualified tax professional for filings.