The best company structure for a SaaS startup.

A SaaS business selling to US customers has specific needs. You need a credible US-facing entity that can sign contracts and issue invoices. Enterprise customers will require you to complete a Form W-9, which is impossible without a US tax identification number (EIN). This alone often drives the decision to form a US company.

Commercially, your structure must unlock US payment infrastructure. This means qualifying for a merchant account with processors like Stripe or Shopify Payments as a US company, which gives you access to lower-cost domestic card processing rates and local payment methods like ACH bank debits. It also means being able to open a US business bank account in the company's name to receive those payouts and hold USD balances without forced conversions.

Finally, the structure must be simple to administer and not create an unmanageable US tax burden. For a typical solo founder or small team based entirely outside the US, the goal is to access the US market operationally without being subject to US corporate income tax. The structure should facilitate this, while providing the limited liability of a corporate form.

A single-member LLC owned by a non-US person and treated as a disregarded entity for US tax purposes directly meets the needs of a typical SaaS founder. It is a formal US legal entity, registered in a specific state, which can enter contracts with customers and suppliers.

Critically, it is eligible for an Employer Identification Number (EIN) from the IRS. This EIN is the key that unlocks everything else: US business banking, US payment processing, and the ability to provide a W-9 to corporate customers. It establishes your business as a US entity for commercial and banking purposes.

However, it is vital to understand what this structure does not do. It does not eliminate your tax obligations in your country of residence; you are still required to report your income and pay taxes according to your local laws. It does not make a high-risk business model low-risk in the eyes of bank compliance teams. Banking is never guaranteed. The LLC provides a clear, compliant path to US infrastructure, but it is not a loophole for avoiding tax or financial regulation. It is a tool for market access.

For US federal tax purposes, a single-member LLC is by default a 'disregarded entity'. This means the LLC itself does not pay US income tax. Instead, the tax obligations flow through to its owner. The central question becomes whether the foreign owner is 'engaged in a trade or business in the United States' (ETBUS).

This is a complex, facts-and-circumstances test. Having US customers does not automatically mean you are ETBUS. If you have no US employees, no US office, and no 'dependent agent' in the US acting on your behalf, it is often possible to conclude that a purely online SaaS business operated from abroad is not ETBUS. If you are not ETBUS, your business income is generally not considered US-source and is not subject to US income tax. This must be confirmed with a qualified US tax adviser.

Even if no tax is due, there is a critical filing requirement. A foreign-owned single-member LLC must file Form 5472 and a pro forma Form 1120 with the IRS each year to report transactions with its owner. The penalty for failing to file is a minimum of $25,000, so this is not optional. It is a mandatory compliance step for maintaining the structure.

For a SaaS startup, the choice of formation state usually comes down to Wyoming or Delaware. Both offer strong liability protection and are well-regarded internationally.

Wyoming is often the default choice for its simplicity, lower annual fees, and privacy. For a bootstrapped SaaS business that does not plan to seek venture capital investment, Wyoming is efficient and cost-effective. The administrative burden is minimal, making it ideal for founders focused on product and growth.

Delaware, however, is the standard for venture-backed technology companies. Its corporate law is highly developed and well understood by investors. If you plan to raise capital from US VCs in the future, forming a Delaware LLC (or C Corporation) from the outset can save significant restructuring costs later. An LLC can be converted to a C Corporation, which is the entity type VCs invest in. If fundraising is a serious possibility, starting in Delaware signals sophistication to potential investors and simplifies their due diligence process. For many SaaS founders with ambitions of scaling through external capital, Delaware is the more strategic long-term choice.

A US LLC with an EIN is your entry ticket to the US financial system. With this structure, you can apply for a business account at US-based financial institutions. These include fintech platforms that offer business accounts fronted by community banks, as well as more traditional banks, though the latter are often harder to access for non-resident owners.

This US account is crucial. It allows you to receive ACH and wire payments in USD, in your company's name. This is a procurement requirement for many large US customers. More importantly, it allows you to connect to a US Stripe account. Using Stripe as a US entity, rather than an entity in your home country, typically provides lower processing fees on payments from US customers and access to ACH debit functionality. Payouts from your US Stripe account settle into your US business account in USD, avoiding the forced currency conversions and high fees often imposed by platforms when paying out to a foreign bank account.

This setup, a US LLC, an EIN, and a US business account, creates a clean, efficient financial loop for your US revenue, separating it from your operations elsewhere and giving your SaaS a truly local presence in its primary market.

When you apply for a payment processor or business account, a compliance underwriter will review your SaaS business. They are assessing financial risk and regulatory compliance. For a SaaS, they focus on a few key areas.

First, they will examine your website and business model. They need to understand what your software does, who it is for, and how you charge for it. Your pricing must be clear and your terms of service and privacy policy must be professional and accessible. Unclear business models or high-risk niches (like anything related to credit repair, get-rich-quick schemes, or adult content) are immediate red flags.

Second, they look at your billing practices. Are you using recurring subscriptions? Do you offer a free trial that converts to a paid plan? They are assessing the risk of customer disputes and chargebacks. A high chargeback rate is a major concern. Providing clear descriptions on customer bank statements ('statement descriptors') is crucial. Underwriters also want to see that you are a legitimate operating business, not a shell for laundering money. Evidence of a real product, real customers, and a professional online presence is key to a smooth approval process.

For a SaaS founder, the choice between Wyoming, Delaware, and Florida is less about tax and more about future funding and operational perception. Delaware is the default for venture capital. If you plan to raise a priced round from institutional US investors, they will almost always require a Delaware C Corporation. Starting as a Delaware LLC offers a clear, well-trodden path to convert into a C Corp later. The state's Court of Chancery has a deep body of corporate case law, which investors prefer.

Wyoming offers superior privacy and lower upkeep costs, making it a strong choice if you intend to bootstrap or stay founder-owned long term. Its filing is shielded, meaning your personal details are not easily searchable in the public record. For many SaaS businesses whose customers are other businesses, the state of formation is irrelevant to closing a deal. However, some compliance departments at larger enterprise clients may subtly prefer a Delaware entity, viewing it as a more standard corporate choice.

Florida is a viable, fast-growing option but offers fewer distinct advantages for a non-US SaaS founder. It provides neither Delaware's investor credibility nor Wyoming's market-leading privacy, and its annual upkeep costs are higher than Wyoming's. For a purely online SaaS model without a physical US presence, the specific benefits of a Florida nexus are minimal.

Stripe is the dominant processor for SaaS. For a foreign-owned US LLC, Stripe will require your EIN confirmation letter (CP 575), articles of organization, operating agreement, and a passport. Underwriting focuses on your website's clarity, pricing, and terms of service. Sudden spikes in high-value annual subscriptions can trigger manual reviews or reserves, as can charging customers in sanctioned countries. A typical SaaS reserve is 5-10% for 90 days, but often waived entirely for businesses with a consistent record of low-dispute monthly billing.

PayPal, Braintree, and Adyen follow similar documentary requirements. Their risk models are sensitive to mismatches between your stated business activity and actual payment flow. If you describe a simple subscription service but start processing large, irregular one-time setup fees, expect a review. Chargebacks are the primary red flag. SaaS businesses see fewer chargebacks than ecommerce, but 'friendly fraud' from customers who used the service and then dispute the charge is common. Maintaining clear usage logs is your best defence.

Enterprise clients may wish to pay via ACH or wire from their own banking portal. This bypasses card processors entirely but requires a robust US business bank account capable of receiving these payment types and providing the necessary routing and account numbers on your W-9 form and invoices.

The primary third-party costs are public and fixed. State filing fees are a one-time expense, typically $100 in Wyoming or $90 in Delaware. Annual costs include the state report ($62 in Wyoming, $300 in Delaware) and a registered agent service, which generally costs between $100 and $250 per year depending on the provider.

Obtaining an EIN from the IRS without a Social Security Number is the main timing variable. The process can take anywhere from 3 to 8 weeks after the LLC is formed. This step is the most common bottleneck, as the EIN is required for nearly all US bank account and payment processor applications.

A realistic timeline from start to first payout: Week 1: LLC formation documents filed. Week 2: LLC approved by the state. Weeks 3-8: EIN application submitted and pending with the IRS. Week 9: EIN received; applications for a US business account and Stripe begin. Week 10-11: Account and payment processor onboarding is completed. Week 12: You can process your first charge and receive your first settled payout, typically 2-7 days after the transaction. The entire sequence, managed efficiently, averages around three months.

Setting up the full structure correctly involves a precise sequence of steps. First, we form the LLC in your chosen state, typically Wyoming or Delaware. This involves drafting and filing the Articles of Organization and securing a Registered Agent. This step usually takes 2-5 business days.

Once the LLC is formed, the next step is to apply for the Employer Identification Number (EIN) from the IRS. For a non-US owner without a US Social Security Number, this is a manual process that involves submitting Form SS-4 by fax. The IRS processing time for this is the longest part of the timeline, currently taking anywhere from 15 to 45 business days.

Only after the EIN is issued can we proceed to the final step: the banking and payment processor applications. We prepare and position your applications across our network of US financial institutions. This stage is typically completed within 5-10 business days of receiving the EIN. Xavion manages this entire sequence, ensuring each step is completed correctly and in the proper order to avoid delays and rejections. You can track progress on your client dashboard and start preparing to onboard customers at xavioncapital.com/start.