Client Portal Employee Portal

Services · Businesses & Entities

U.S. tax for businesses and entities

We prepare U.S. returns for foreign companies owned by U.S. persons, U.S. companies owned by non-U.S. persons, and partnerships with cross-border owners. The international entity rules carry some of the highest penalties in the tax code, and we prepare these filings as a core part of our work.

U.S. corporation returns

  • Form 1120
  • Form 1120-S
  • State returns

We prepare federal and state income tax returns for U.S. C corporations and S corporations. This includes corporations with foreign shareholders, foreign operations, or cross-border transactions that bring the international reporting rules into play.

Partnership returns

  • Form 1065
  • Schedules K-2 / K-3

We prepare U.S. partnership and multi-member LLC returns, including the international schedules. This covers foreign partners, withholding under sections 1446(a) and 1446(f), and the K-2 and K-3 reporting that now applies to most partnerships with cross-border facts.

U.S. owners of foreign corporations

  • Form 5471
  • GILTI — Form 8992
  • Form 8993
  • Form 926

When a U.S. person owns enough of a non-U.S. company, the company's financial results become part of the owner's U.S. filing. We prepare Form 5471 in all its categories, run the GILTI and Subpart F calculations, and advise on elections such as section 962 that can change the result.

This is a core part of our work, particularly for owner-managed companies in Canada, Hong Kong and across Asia.

Foreign-owned U.S. entities

  • Form 5472
  • Pro forma 1120
  • Form 1120-F

Non-U.S. persons investing into the United States — through a Delaware LLC, a U.S. subsidiary, or U.S. real estate held in an entity — have their own reporting obligations. We prepare Form 5472 to disclose related-party transactions, returns for foreign corporations with U.S. business (Form 1120-F), and advise on the related withholding questions.

Foreign partnerships

  • Form 8865

U.S. persons with interests in non-U.S. partnerships may need to file Form 8865, which is similar to Form 5471 in scope and in penalty exposure. We determine the filing category and prepare the return alongside your Form 1040 or entity filings.

Entity classification planning

  • Form 8832
  • Late-election relief

How an entity is classified for U.S. purposes — corporation, partnership or disregarded entity — affects the tax treatment of everything below it. We advise on check-the-box elections when structures are set up or reorganized, prepare Form 8832, and pursue late-election relief where a deadline has already passed.

FAQ

Businesses & entities — common questions

I am a U.S. citizen who owns a company abroad. Do I have U.S. filing obligations?

Yes. U.S. persons with sufficient ownership in a foreign corporation generally must file Form 5471 with their U.S. return. The GILTI and Subpart F rules can also tax the company’s earnings to you personally, even if nothing is distributed. The penalty for not filing Form 5471 starts at US$10,000 per form, per year.

I am a non-U.S. person with a U.S. LLC. Do I have to file if the LLC had no income?

Usually yes. A foreign-owned single-member U.S. LLC generally must file Form 5472 with a pro forma Form 1120 each year to report transactions with its owner, including capital contributions. The penalty for not filing is US$25,000. Income or activity is not required to create the obligation.

What is a “check-the-box” election?

Form 8832 lets many entities choose how they are classified for U.S. tax purposes — corporation, partnership or disregarded entity. The choice affects how a cross-border structure is taxed, and the deadlines are easy to miss. We advise on whether an election makes sense and prepare it when it does.

Can you work with my local accountant?

Yes. Your local accountant handles the filings in your home country; we handle the U.S. side. We coordinate so that positions, elections and financial statements are consistent across both returns.

Work with us

Have a cross-border company structure?

Send us an outline of your structure. We will identify the U.S. filings it requires and quote a defined scope before any work begins.

International US Tax

LCW Tax Advisory

A specialist international U.S. tax firm providing trusted tax advisory, planning, and compliance services for individuals, businesses, and trusts.