US LLC Formation and Bank Account Setup for Taiwan Ecommerce Sellers

While Taiwan brands can technically sell on Amazon US without a US legal entity (Amazon allows foreign business registration), forming a US LLC provides significant operational and strategic advantages that justify the investment. The primary benefits are: liability protection (a US LLC separates your personal and Taiwan company assets from US business liabilities), simplified banking (US LLCs can open US bank accounts directly, avoiding costly international wire transfers for every transaction), tax efficiency (properly structured single-member foreign-owned LLCs may not owe US federal income tax on qualifying foreign income), and marketplace credibility (US buyers and business partners perceive US-based entities as more established and trustworthy).

Amazon deposits seller funds every 14 days to a bank account in the currency of the marketplace. Without a US bank account, Taiwan sellers must use Amazon's currency conversion service (which charges approximately 1.5 to 4 percent conversion spread) or third-party payment services like Payoneer or Worldfirst (which charge 1 to 2 percent). On USD 500,000 in annual Amazon revenue, these conversion costs total USD 5,000 to USD 20,000 per year. A US LLC with a US bank account eliminates this currency conversion cost for funds kept in USD, saving the conversion fee on operational expenses paid in the US (FBA fees, advertising, 3PL, insurance) and only converting to TWD the profit portion repatriated to Taiwan.

Product liability exposure is another critical reason for LLC formation. If a consumer in the US is injured by your product and files a lawsuit, having a US LLC ensures that the lawsuit is directed at the LLC entity rather than directly at your Taiwan company or personal assets. While an LLC does not prevent lawsuits, it limits liability to the assets held within the LLC and any insurance coverage, protecting your Taiwan-based business operations and personal wealth. Without a US LLC, a US plaintiff's attorney can attempt to pursue your Taiwan company directly, creating complex cross-border litigation with unpredictable outcomes.

The total cost of forming and maintaining a US LLC is approximately USD 1,500 to USD 3,000 for initial formation (including state filing fees, registered agent, and formation service) plus USD 800 to USD 2,000 per year for maintenance (registered agent renewal, state annual report, and tax filing). This cost is recovered within the first few months of operation through banking cost savings alone for any Taiwan brand with meaningful US sales volume. Consider LLC formation as a required infrastructure investment for serious US market participation, not an optional expense.

The state of formation determines your LLC's governing law, filing fees, annual maintenance costs, and privacy protections. For Taiwan ecommerce sellers, the three most common state choices are Wyoming, Delaware, and New Mexico, each with distinct advantages. Wyoming offers the lowest ongoing costs (USD 52 annual report fee, no state income tax, no franchise tax), strong privacy protections (no public disclosure of member names), and a simple formation process. Wyoming is the recommended choice for most Taiwan ecommerce sellers who do not need a physical US office.

Delaware is the traditional choice for companies planning to raise US venture capital or go public, because Delaware's Court of Chancery is the most experienced business law court in the US and investors are comfortable with Delaware corporate governance. However, Delaware charges a USD 300 annual franchise tax for LLCs (regardless of revenue) and has higher formation fees. If you are a Taiwan brand selling on Amazon without plans for US institutional investment, Delaware offers no meaningful advantage over Wyoming at higher cost.

New Mexico is an increasingly popular choice for foreign-owned LLCs because it has no annual report filing requirement (the only US state with this feature), no state income tax on single-member LLCs owned by non-US persons (same as Wyoming), and a low formation fee of approximately USD 50. The lack of annual filing requirement eliminates one compliance obligation but also means the state has less oversight of registered entities, which can create perception issues with sophisticated business partners. For straightforward ecommerce operations, New Mexico is a viable low-maintenance choice.

Regardless of which state you choose for formation, if you store inventory in other states (through Amazon FBA, which distributes inventory across multiple state fulfillment centers), you may need to "foreign qualify" your LLC in those states. Foreign qualification means registering your LLC as a foreign entity authorized to do business in that state, which carries additional filing fees (USD 100 to USD 800 per state) and annual maintenance costs. In practice, most ecommerce sellers with no physical employees, offices, or owned property in other states limit their formal registrations and rely on Amazon's marketplace facilitator status for sales tax compliance.

Step 1: Engage a registered agent in your chosen state. A registered agent is a person or company with a physical address in the state who receives legal documents and government correspondence on behalf of your LLC. You cannot use a foreign address as your registered agent address. Registered agent services cost USD 100 to USD 300 per year. Recommended providers for foreign-owned LLCs include Northwest Registered Agent (strong customer service, USD 125 per year), Incfile (budget option, USD 119 per year), and Wyoming Agents (Wyoming specialists, USD 50 per year).

Step 2: File Articles of Organization with the state. You can file directly with the state's Secretary of State office (online filing available in most states) or through a formation service that handles the filing on your behalf. The filing requires: LLC name (must include "LLC" or "Limited Liability Company" and must be unique in the state), registered agent name and address, organizer name and address (can be your formation service), and the management structure (member-managed or manager-managed; choose member-managed for single-member LLCs). Filing fees range from USD 50 (New Mexico) to USD 100 (Wyoming, Delaware). Processing time is 1 to 5 business days for online filing.

Step 3: Obtain an EIN (Employer Identification Number) from the IRS. The EIN is the US equivalent of a tax identification number for businesses and is required to open a US bank account, file US tax returns, and register as an Amazon seller. Foreign-owned LLCs without a Social Security Number must apply for an EIN using IRS Form SS-4, submitted by fax or mail (online EIN application is not available for foreign applicants without SSNs). Processing time is 4 to 8 weeks by mail or 2 to 4 weeks by fax. Include a completed Form SS-4 with your Taiwan passport number as the foreign identification number.

Step 4: Prepare an Operating Agreement. While most states do not require filing an Operating Agreement, having one is essential for bank account opening (most US banks require it), establishing the LLC's governance structure, and documenting the ownership percentage. For a single-member LLC owned by a Taiwan individual or company, the Operating Agreement should specify the member (owner), their ownership percentage (100 percent), the management structure, capital contribution, profit distribution rules, and dissolution procedures. Templates are available from formation services, or you can engage a US attorney (USD 500 to USD 1,500) for a customized Operating Agreement.

Opening a US business bank account as a foreign-owned LLC has historically been the most challenging step, but several banks now cater to international ecommerce sellers. Mercury (mercury.com) is the most popular choice for foreign-owned LLCs, offering fully remote account opening, no minimum balance requirements, no monthly fees, and integration with accounting software. Mercury's application requires the Articles of Organization, Operating Agreement, EIN confirmation letter, passport copies of all members, and a description of business activities. Approval takes 3 to 7 business days.

Relay (relayfi.com) is another strong option, offering no-fee business checking with features designed for ecommerce sellers including multiple account numbers for separating marketplace revenue, automatic profit allocation, and integration with Amazon Seller Central. Relay's application process is similar to Mercury's and can be completed remotely. Other options include Brex (requires a minimum deposit, offers a corporate credit card useful for advertising spend), and traditional banks like Chase or Bank of America (which generally require in-person visits to a US branch and are therefore less practical for Taiwan-based founders).

The bank account opening documentation package should include: certified copies of the Articles of Organization (obtainable from the state for USD 10 to USD 25), the Operating Agreement signed by all members, the IRS EIN confirmation letter (Form CP 575), passport copies of all beneficial owners with more than 25 percent ownership, proof of address for all beneficial owners (utility bill or bank statement from Taiwan, translated to English if necessary), and a brief business description explaining your ecommerce operations. Having all documents prepared before starting the application prevents delays.

After account opening, configure your Amazon Seller Central deposit settings to use your new US bank account. Navigate to Settings, then Account Info, then Deposit Methods, and enter your US bank routing number and account number. Amazon will make a small verification deposit (typically USD 0.01 to USD 0.99) within 3 to 5 business days, which you must confirm in Seller Central to complete the setup. Once configured, Amazon deposits your seller balance to the US account every 14 days. Transfer funds to Taiwan as needed through your bank's international wire transfer service or through a specialized service like Wise (formerly TransferWise), which offers significantly lower transfer fees (0.4 to 0.6 percent) than traditional bank wires (USD 25 to USD 45 flat fee plus exchange rate markup).