Clear filing support for U.S. corporations that need Form 1120 prepared correctly, especially where foreign ownership or cross-border compliance is involved.
U.S. corporations — including LLCs that have elected corporate tax treatment — are generally required to file an annual corporate income tax return.
For foreign entrepreneurs operating through a U.S. corporation, filing obligations depend on how the entity is classified, how income is generated, and whether ownership creates additional reporting considerations.
Form 1120 (U.S. Corporation Income Tax Return) and Form 1120-S (U.S. Income Tax Return for an S Corporation) are the primary corporate tax returns used to report income, deductions, and tax liability at the entity level.
In general, S corporation status is limited to U.S. persons. Foreign individuals are typically not permitted shareholders of an S corporation. Proper classification review is critical before filing
Our role is to confirm whether corporate filing applies to your structure and to ensure the return is prepared consistently with federal classification and ownership profile.
Corporate income tax returns may be required if:
Your entity is organized as a U.S. corporation
Your LLC has elected to be taxed as a corporation
The entity has deductible business expenses
A federal tax election has been made (including S corporation status, where permitted)
For foreign-owned corporations, filing obligations exist even when income is minimal or losses occur.
The requirement to file Form 1120 depends on entity classification — not solely on tax due.
Failure to file Form 1120 when required may result in:
IRS penalties
Interest assessments
Loss of compliance standing
Delays in future filings or elections
Inconsistent reporting across related filings
Corporate tax returns also interact with:
Shareholder reporting
Informational filings
Withholding considerations
Cross-border income exposure
Accuracy at the entity level supports stability across the broader compliance structure.
Our review begins with classification. We analyze:
Entity type and formation documents
Federal tax election status
Ownership profile
Revenue and expense structure
Prior filing history
We then prepare:
Form 1120 or Form 1120-S, as applicable
Required supporting schedules
Shareholder reporting documentation
Relevant elections or disclosures
Where applicable, we coordinate with:
Individual shareholder reporting
ITIN considerations
Cross-border income classification
Each corporate income tax return is prepared within the context of long-term compliance alignment.
In foreign-owned corporate structures, we frequently encounter:
Incorrect assumptions regarding S corporation eligibility
Failure to file despite corporate election
Misunderstanding of entity-level taxation
Confusion between LLC default classification and corporate election
Lack of coordination between corporate and individual filings
These are structural misunderstandings — not bookkeeping errors.
Correct classification and filing prevent downstream complications.
Depending on the case, this service may include:
review of the corporation’s filing position
assessment of whether Form 1120 is the correct return
preparation support for Form 1120
review of income, deductions, and basic corporate tax reporting issues
practical explanation of how the corporate filing position works
support for foreign-owned U.S. corporations where relevant
guidance on related next-step compliance matters
Where needed, we also explain whether additional services may be appropriate, such as Amendments to Tax Returns, Catch-Up Tax Returns, U.S. Business Reporting & Disclosure Compliance services, or international compliance review where cross-border issues are involved.
Our practice focuses on foreign entrepreneurs operating U.S. entities with cross-border considerations. We understand how corporate tax filing interacts with:
Federal classification elections
Foreign shareholder structures
Related informational reporting
Individual nonresident tax filings (where applicable)
We approach corporate income tax returns as part of a structured compliance framework — not as isolated annual submissions
Who must file a corporate income tax return?
All U.S. corporations, including inactive ones in many cases, must file Form 1120 annually unless formally dissolved.
What is the due date for Form 1120?
Generally, the return is due April 15 for calendar-year corporations, with extensions available.
Do foreign-owned corporations have additional requirements?
Yes. Foreign ownership can trigger additional disclosures and compliance considerations, requiring careful preparation.
Is corporate tax filing the same as paying tax?
No. Filing reports income and calculates tax; payment depends on the corporation’s taxable income and credits.
Can you help with late or missed corporate tax returns?
Yes. We assist with back-year filings, penalty mitigation, and compliance restoration.
What is Form 1120?
Form 1120 is the U.S. corporate income tax return used by corporations to report income and calculate entity-level tax liability.
What is Form 1120-S?
Form 1120-S is used by S corporations to report income passed through to shareholders, where eligibility requirements are met.
Can a foreign entrepreneur own an S corporation?
Generally, foreign individuals are not eligible S corporation shareholders.
Is filing required even if the corporation had no profit?
Yes. Filing requirements depend on classification and activity, not profit alone.
What if the corporation did not file in prior years?
Late filings may be addressed, but prompt correction reduces exposure and late filing penalties
If your U.S. corporation needs Form 1120 prepared clearly and correctly, especially in a foreign-owned or cross-border context, Taxivo can help you handle the filing with confidence.