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Does a foreign-owned single-member LLC have to file Form 5472?

The short answer, with the official forms and the agencies' own links.

Updated October 15, 2026Sources: the agencies' own sites

The short answer

Yes, every year, attached to a pro forma Form 1120 by the tax return due date. It can't be filed electronically for a disregarded entity, and the penalty for not filing starts at $25,000.

The forms involved

  1. Information Return of a 25% Foreign-Owned U.S. Corporation or a Foreign Corporation Engaged in a U.S. Trade or Business

    Internal Revenue ServiceUS federal

    Filed each year with Form 1120 (a foreign-owned single-member LLC attaches it to a pro forma 1120). Not filed electronically for a disregarded entity.

    Fee
    Free
    Filed
    Paper form, mailed
    Renews
    Every year, by the tax return due date.

    The agency's site

  2. Application for Employer Identification Number (EIN)

    Internal Revenue ServiceUS federal

    Owners with an SSN or ITIN apply online. A company whose responsible party has neither (most China-based owners) faxes or mails Form SS-4, or calls the IRS international line.

    Fee
    Free
    Filed
    Paper form, faxed or mailed
    Takes
    Fax: about 4 business days. Mail: about 4 to 5 weeks. Phone: issued on the call.

    The agency's site

General information, not legal or tax advice. Agency requirements change; check the agency's page before you file.

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