Delaware C-Corp for Cross-Border Founders | Formation & Tax Guide

Non-US founders incorporating in Delaware face a unique set of challenges: EIN applications without SSNs, ITIN filings, US bank account requirements, and cross-border tax treaty planning. Getting the structure right at formation saves tens of thousands in future restructuring costs.

Why Cross-Border Founders Choose Delaware C-Corps

US venture capital investors overwhelmingly prefer to invest in Delaware C-Corps. Most standard VC term sheets, SAFE agreements from Y Combinator, and convertible note templates are drafted for Delaware corporations under the DGCL. For international founders building a US-facing business or raising US capital, forming a Delaware C-Corp is typically the first step toward institutional fundraising. The alternative, having investors invest in a foreign entity, creates significant complications under Subpart F rules (IRC Sections 951 through 965), PFIC classification (IRC Section 1297), and FIRPTA withholding (IRC Sections 1445 and 1446). Most US-based VCs will not invest in a non-US entity without a flip or restructuring to create a US parent. By forming the Delaware C-Corp from the outset, cross-border founders avoid a potentially expensive corporate restructuring later. The key is to set up the legal, tax, and banking infrastructure correctly during formation, not after your first investor writes a check.

EIN Application Without a Social Security Number

To open a US bank account and file US tax returns, your Delaware C-Corp needs an Employer Identification Number (EIN) from the IRS. US citizens and residents can apply for an EIN online through the IRS website. Non-US founders without a Social Security Number (SSN) or Individual Taxpayer Identification Number (ITIN) cannot use the online application. Instead, they must submit Form SS-4 by fax or mail, which typically takes 4 to 8 weeks by mail or 2 to 4 weeks by fax. The form requires a "responsible party" with a taxpayer identification number. If no founder has an SSN or ITIN, the responsible party can use a foreign passport number and foreign address. The IRS will issue the EIN to the entity. We strongly recommend filing by fax rather than mail, as fax applications are generally processed within two weeks. SpryTax handles the Form SS-4 preparation and fax submission for international clients and follows up with the IRS if processing is delayed.

US Bank Account and Payment Processing

Opening a US business bank account as a non-US resident has historically been one of the biggest hurdles for cross-border founders. Most traditional banks (Chase, Bank of America, Wells Fargo) require at least one authorized signer to appear in person at a US branch with identification documents. For founders who cannot travel to the US immediately, several neobanks and fintech platforms offer remote account opening for Delaware C-Corps with international founders. Mercury, Relay, and Brex are commonly used by cross-border startup clients. These platforms typically require the certificate of incorporation, EIN confirmation letter, operating agreement or bylaws, and passport copies for all authorized signers. Stripe Atlas, which bundles Delaware formation with a Stripe account and Silicon Valley Bank (now part of First Citizens) banking, is another option, though the service charges a premium over forming the C-Corp independently. Regardless of which bank you choose, ensure that the account supports wire transfers (both domestic and international), integrates with your accounting software, and provides the transaction history exports needed for monthly bookkeeping.

Tax Obligations for Non-US Founders

A Delaware C-Corp is a US tax resident regardless of where its founders live. The corporation files Form 1120 and pays US federal corporate income tax on worldwide income. If the corporation pays salaries, dividends, interest, royalties, or other fixed, determinable, annual, or periodic (FDAP) income to non-US persons (including its own founders living abroad), it must withhold US tax at 30% under IRC Section 1441, unless a reduced rate applies under an applicable tax treaty. For founders receiving salary from the C-Corp, the company must withhold federal income tax, and the founder must obtain an ITIN by filing Form W-7 to report this income on a US nonresident return (Form 1040-NR). Many tax treaties reduce the withholding rate on dividends to 15% or lower. For example, the US-UK treaty reduces dividend withholding to 15% (or 5% if the recipient holds 10% or more of the voting stock), and the US-India treaty provides a 15% rate on dividends. Founders should work with a tax advisor who understands both US tax law and the treaty provisions of their home country to structure compensation (salary vs. dividends vs. equity) in a tax-efficient manner.

How SpryTax Supports Cross-Border Formation

SpryTax provides a full-service formation package for international founders that includes Delaware C-Corp incorporation, registered agent service, EIN application via Form SS-4, assistance with US bank account opening, 83(b) election filing for founder shares, initial corporate governance documents, and ongoing federal and state tax compliance. We work with founders from over 30 countries and understand the specific treaty provisions, withholding requirements, and reporting obligations that apply to each jurisdiction. Our formation process takes approximately two to four weeks from engagement to operational entity, including EIN issuance. We also coordinate with immigration attorneys when founders plan to relocate to the US on O-1, E-2, or other visa categories, ensuring the corporate structure supports the visa application.

Related Resources

Back to Blog

Best Delaware C-Corp Service for Cross-Border Startup Founders