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US business formation & tax compliance for international entrepreneurs

Building a US business presence? We'll help you structure it right from the start.

  • 50+ countries represented

  • 500+ US entities formed & maintained

  • 15+ years exclusive international focus

Whether you're starting your first US business or growing an existing one, setting up your US taxes correctly is important. We help international business owners choose the right business structure, complete the formation process, and stay compliant with US tax rules.

You focus on running your business, we handle the US tax requirements.

Smiling female incorporation specialist with long blonde hair and crossed arms.
Our incorporation specialist Alisa can help set up your US business

Complete US tax service for international business owners

Entity formation & structure strategy

Choose the right structure for your cross-border business. We analyze LLC vs. C-Corp options, evaluate treaty implications, and consider your home country tax obligations to recommend the optimal setup for both your US operations and international tax position.

Federal & state tax compliance

Foreign-owned US businesses have special filing requirements that most US accountants don't handle regularly. We manage your corporate tax returns (Form 1120), partnership returns (Form 1065), state registrations, estimated tax payments, and keep track of all your deadlines throughout the year.

Foreign owner reporting

Stay compliant with specialized requirements for non-US owners. We manage Form 5472 reporting, beneficial ownership filings, transfer pricing documentation, and ensure you meet all IRS disclosure requirements specific to foreign-owned US entities.

“I hadn't filed in 8 years and was paralyzed with anxiety about the consequences. OnlineTaxman walked me through the streamlined procedure step by step. They helped me understand what to expect and got me back into compliance.”

— Michael Rodriguez, expat in Spain since 2015

Our proven approach to US business tax

  1. Structure consultation

    We start by understanding your business model, ownership structure, and long-term goals. Then we recommend the optimal entity type and formation strategy for your specific situation.

  2. Formation & setup

    We guide you through entity formation, obtain your EIN, make necessary tax elections, and establish proper systems. We coordinate with formation services and legal counsel as needed.

  3. Ongoing partnership

    As your business grows, we handle all US tax compliance, provide strategic guidance on major decisions, and keep you informed of law changes affecting your operations.

Ready to establish your US business presence?

Get expert guidance on formation, structure, and ongoing compliance for your international business.

Frequently asked questions

Still have questions? Get in touch by your preferred contact method to get expert guidance.