If you are a non-US founder, choosing between a Delaware LLC and a Delaware C-Corp is not just a formation decision. It determines how profits are taxed, which IRS returns you file, how investors buy equity, and how easily you can maintain Stripe and US banking. The right answer usually depends on whether you plan to distribute profits or raise institutional capital.
LLC vs C-Corp: The Core Difference
A Delaware LLC is flexible and normally uses pass-through taxation. The LLC itself generally does not pay US federal income tax; profits and losses pass to its owners. However, a foreign-owned single-member LLC is usually treated as a disregarded entity, and that does not mean it can ignore the IRS.
A C-Corp is a separate US taxpayer. It pays federal corporate income tax at 21%, plus any applicable state taxes. If it later distributes after-tax profits as dividends, the shareholder may face a second layer of tax. This is the “double taxation” associated with C-Corps.
Despite that cost, a C-Corp has standardized shares, boards, stock options, and governance. US accelerators and venture capital funds therefore usually expect a Delaware C-Corp. Some investors cannot or will not invest in pass-through LLCs because doing so can create tax reporting problems for their own partners.
- LLC: often better for profitable, owner-operated businesses that will not raise VC.
- C-Corp: usually better for scalable startups planning equity rounds, employee options, or an acquisition.
Tax Treatment for a Foreign Owner
Pass-through taxation is not automatically tax-free. If your LLC conducts a US trade or business, some income may be effectively connected income, requiring a foreign owner to file a US return and potentially pay federal and state tax. Whether income is US-taxable depends on facts such as where services are performed, whether you have US employees or agents, and where contracts and operations are managed.
For example, a solo consultant who lives and performs all services outside the United States may have a different US tax result from an agency with staff working in California. A Delaware registration alone does not determine where income is sourced. Your home country may also tax the same profit or classify an LLC differently, so obtain cross-border advice before assuming pass-through treatment is beneficial.
A C-Corp pays tax on its taxable profit, not revenue. If a SaaS company receives $500,000 in revenue and has $400,000 of deductible expenses, its federal taxable profit may be $100,000, producing up to $21,000 in federal corporate tax before credits, state taxes, and adjustments. Reinvesting the remaining profit can reduce the immediate relevance of dividend taxation. When dividends are paid abroad, US withholding is generally 30%, although an applicable tax treaty may lower the rate.
Delaware also imposes annual entity costs. A Delaware LLC generally pays a flat $300 annual tax by June 1. A Delaware C-Corp files an annual report and pays franchise tax by March 1; the minimum is commonly $175 under the Authorized Shares Method or $400 under the Assumed Par Value Capital Method, plus a $50 annual report fee. Companies authorizing millions of shares should calculate both methods because the initial notice can show a surprisingly high amount.
Form 5472 and Other Filing Obligations
A foreign-owned single-member US LLC commonly must file a pro forma Form 1120 with Form 5472 when it has reportable transactions with its foreign owner or another related party. Reportable transactions can include formation funding, owner contributions, reimbursements, withdrawals, and payments between the owner and LLC.
The normal deadline is April 15 for a calendar-year entity, with an extension generally available through Form 7004. The penalty for failing to file a complete Form 5472 on time starts at $25,000. This filing obligation can apply even when the LLC owes no federal income tax and had little commercial activity.
A C-Corp normally files Form 1120 annually. A 25% foreign-owned corporation may also need Form 5472 for reportable related-party transactions. Depending on your business, additional obligations can include payroll returns, state income or franchise filings, sales tax registrations, Forms 1099, and beneficial ownership reports required under then-current federal rules.
Budget roughly $500–$2,000 per year for straightforward professional tax and compliance work, and more for multi-state operations, payroll, complex ownership, or transfer pricing. Formation is fast; maintaining accurate books through tools such as QuickBooks, Xero, or Mercury accounting integrations is the longer-term task.
Stripe, Banking, and Operational Access
Both entity types can apply for Stripe and US business banking. Stripe does not require every company to be a C-Corp, and creating a Delaware company does not guarantee account approval. Providers review the founder’s identity, business model, website, products, expected transaction volume, operating address, and countries involved.
Stripe Atlas is a formation product, not a shortcut around underwriting. Its standard path has historically focused on Delaware C-Corp formation, although offerings and fees can change. Compare its current package with your need for tax advice, an EIN, banking support, and post-formation filings.
An EIN can sometimes be obtained quickly, but a foreign founder without a Social Security number should allow several weeks if the application requires manual IRS processing. Banking platforms such as Mercury and Relay may support eligible non-US founders, while Wise Business can help with international transfers. Each applies its own country, industry, address, and compliance restrictions.
Prepare the following before applying:
- formation certificate, EIN confirmation, and operating agreement or bylaws;
- passport and residential address evidence for each major owner;
- a working website with pricing, terms, privacy policy, and refund rules;
- contracts, invoices, or product screenshots demonstrating real activity;
- a clear explanation of customers, suppliers, transaction sizes, and countries served.
Keep ownership and address details consistent across Delaware records, the IRS, Stripe, and your bank. Mismatches can delay reviews or trigger account restrictions.
When a Delaware LLC Makes Sense
Choose an LLC when you are building a bootstrapped services business, agency, consultancy, e-commerce operation, or small software product and expect to withdraw profits rather than raise venture capital. An LLC also offers flexible management and fewer corporate formalities than a C-Corp.
A typical example is a non-US founder operating a $150,000-per-year design agency entirely from their home country. They need US invoices, Stripe, and a dollar account, have no US employees, and do not plan to issue stock options. An LLC may be the simpler fit, subject to tax analysis in both countries.
An LLC becomes less attractive if you expect multiple equity rounds. Converting later is possible, but it may require legal documents, tax analysis, new banking reviews, contract assignments, and changes to cap-table records. Depending on complexity, a conversion can cost several thousand dollars and take weeks.
When a Delaware C-Corp Makes Sense
Choose a C-Corp if you plan to raise from US angels or VC funds, join an accelerator, issue stock options, retain earnings for growth, or build toward a major acquisition. It is the standard structure for a venture-backed SaaS startup because investors understand preferred stock, board rights, vesting, and option pools.
For example, if you are launching SaaS, targeting a $1 million seed round within 12 months, and expect to hire US employees, start with a Delaware C-Corp. Forming an LLC to save a small amount now may create avoidable conversion work during due diligence.
A C-Corp requires stronger governance: bylaws, board and shareholder approvals, stock purchase documents, securities compliance, and a reliable cap table. Tools such as Carta or Pulley can help manage equity, while Clerky is commonly used for startup legal workflows. Founders should also document vesting and intellectual property assignment from day one.
Decision Matrix for a Non-US Founder
- Bootstrapped consultancy or agency: usually LLC.
- Profitable business distributing cash to one owner: often LLC, after cross-border tax review.
- Venture-backed SaaS or marketplace: C-Corp.
- Fundraising within 12–24 months: C-Corp.
- Need employee stock options: C-Corp.
- Only need Stripe and US banking: either can work; approval depends on underwriting, not the label.
- Want minimal corporate governance: LLC.
- Uncertain about US taxable presence: pause and obtain advice before forming either entity.
The practical rule is straightforward: choose an LLC for a closely held, cash-generating business; choose a Delaware C-Corp for a company designed to sell equity and scale with investors. Do not base the decision only on formation price or a promise of “zero US tax.”
When to Work With Founder Portal
Work with Founder Portal when you need formation, Stripe or banking preparation, and compliance workflows coordinated in one place. For cross-border tax conclusions, pair the setup process with advice from a qualified US and home-country tax professional.