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Non-U.S. Company

Doing Business in the U.S.

Non-U.S. Companies Operating in the U.S.


Expanding your business operations into the United States presents unique tax challenges, especially for non-U.S. companies. Our specialized tax services are tailored to assist non-U.S. companies in navigating the complexities of U.S. tax laws and ensuring compliance with federal and state tax obligations.


Here's how we can help:


1. Treaty Protective Return Preparation:

For non-U.S. companies eligible for tax treaty benefits, preparing a treaty protective return is essential to safeguarding treaty benefits while preserving the right to claim tax treaty benefits retroactively. Our team will assist you in preparing treaty protective returns to ensure compliance with IRS regulations and protect your eligibility for treaty benefits.


2. Branch Tax Return Filing:

Non-U.S. companies operating in the U.S. through a branch or permanent establishment may be subject to branch profits tax on effectively connected income. We'll prepare and file branch tax returns (Form 1120-F) accurately and on time, ensuring compliance with IRS regulations and minimizing branch tax liabilities.


3. Federal Treaty Conformity in the States:

While the U.S. has income tax treaties with many countries, individual states may not conform to federal treaty provisions, leading to potential inconsistencies in state taxation for non-U.S. companies. We'll analyze state tax laws and regulations to assess the impact of federal treaty provisions on state taxation, helping you navigate state tax conformity issues and optimize your state tax position.


5. Compliance Monitoring and Updates:

U.S. tax laws and regulations, as well as tax treaty provisions, are subject to frequent changes. We'll stay abreast of developments in U.S. federal and state tax laws, regulations, and treaty provisions, providing timely updates and guidance to ensure ongoing compliance with evolving tax rules and optimize your tax position accordingly.



With Sunstone CPA's comprehensive tax services for non-U.S. companies doing business in the U.S., you can navigate the complexities of U.S. taxation with confidence. Contact us today to learn more about how we can assist you in optimizing your tax position and achieving your business goals in the U.S. market.

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