What a Foreign-Owned US C Corporation Files Each Year

When does a US corporation count as foreign-owned?

A US corporation meets the Form 5472 ownership test if one foreign person directly or indirectly owns at least 25% of its voting power or stock value at any time during its tax year. The owner can be an individual or a company; ownership through other entities can count under attribution rules (IRS: Form 5472 instructions).

The test looks at one person's ownership, not just a total held by unrelated foreign investors. A person who is neither a US citizen nor a US tax resident is generally foreign for this purpose, unless a joint-return election under section 6013(g) or (h) applies. Both spouses sign the election statement with their joint return for that year; they can also elect on a joint amended return, generally within three years of filing or two years of paying tax, whichever is later (IRS: Publication 519). If an owner becomes a US tax resident during the year, check whether they met the ownership test while still foreign. A company organized outside the US is also generally foreign. Check the corporation's share register and ownership chain, including changes during the year. Form 1120 Schedule K, question 7, asks for foreign ownership information even if Form 5472 is not required (26 CFR 1.6038A-1; IRS: Form 1120 instructions).

What does a foreign-owned C corporation file with the IRS each year?

A domestic C corporation generally files Form 1120 annually. It attaches a separate Form 5472 for each related party with which it had a reportable transaction, subject to narrow exceptions. Related parties include qualifying foreign shareholders and can include people or companies connected to them or the corporation. Foreign ownership alone does not make Form 5472 due (IRS: Form 1120 instructions; IRS: Form 5472 instructions).

Other federal returns depend on employees, assets, and activities. For the general filing map, see Which returns your US business files. For how corporate profit and dividends are taxed, see How C corporations are taxed.

Does the corporation still file Form 1120 with no income or activity?

Yes. A domestic C corporation generally files a full Form 1120 even if it made no sales, paid no expenses, or has no taxable income. The IRS says domestic corporations file whether or not they have taxable income; a newly formed or dissolved corporation generally files for its short tax year (IRS: Form 1120 instructions).

No activity can mean no Form 5472 if there was no reportable transaction. Do not treat "no sales" as "no transactions": an owner loan, a payment for the owner's services, a purchase from a related company, or an amount accrued but unpaid may still count. A regular corporation files its completed income tax return, not the abbreviated pro forma Form 1120 used by certain foreign-owned disregarded entities (IRS: Form 5472 instructions).

When is Form 5472 needed, and which owner dealings count?

Form 5472 is generally needed when a qualifying corporation has a transaction of a type listed in Part IV or Part VI with a related party. The party can be the foreign shareholder, a related foreign company, or a related US person. The corporation files a separate form for each such party, but does not complete Parts IV or VI for a US related party (IRS: Form 5472 instructions; 26 CFR 1.6038A-2).

An exception can remove Form 5472 for a related foreign company when a controlling US person files Form 5471 with Schedule M reporting all reportable transactions between that company and the corporation. Check each related party separately (IRS: Form 5472 instructions).

Part V expressly covers formation costs, contributions, and distributions for a foreign-owned US disregarded entity. It does not apply to a regular C corporation. Do not use the LLC rule to make every stock contribution or dividend reportable on Form 5472. A noncash exchange or a payment bundled with services needs its own review (IRS: Form 5472 instructions).

When are the returns due, and can they be extended or e-filed?

Form 1120 is generally due on the 15th day of the fourth month after the corporation's tax year ends. Form 5472 is attached and shares that due date, including a valid extension. For a calendar-year corporation, the usual date is April 15 of the following year (IRS: Publication 509; IRS: Form 5472 instructions). Filed Form 7004? See what is due by the extended date. Filing from outside the US? See filing the return from abroad.

The next business day applies when a due date falls on a weekend or legal holiday. Regular C corporations can generally e-file Form 1120 with Form 5472 attached; e-filing Form 1120 is generally required when the corporation files at least 10 returns of any type during the calendar year, unless a waiver or exemption applies. The IRS's prohibition on e-filing Form 5472 applies to foreign-owned US disregarded entities, whose filing method differs (IRS: Publication 509; IRS: Form 1120 instructions; IRS: Form 5472 instructions; IRS: Form 7004 instructions).

What records must the corporation keep?

The corporation must keep records that support its Form 1120 and identify and value dealings with related parties. Gather the share register and ownership chain, bank statements, ledgers, invoices, service agreements, loan documents, interest calculations, and proof of each payment or accrual (26 CFR 1.6038A-3).

Special Form 5472 record-maintenance rules generally do not apply to a regular reporting corporation with less than $10,000,000 in US gross receipts for the tax year, subject to aggregation with related reporting corporations. A separate exception can apply when foreign related-party transactions are small relative to US gross income. Form 5472 reporting and ordinary tax records still apply. Larger corporations may need records held abroad when relevant to the US tax treatment of related-party transactions (26 CFR 1.6038A-1; 26 CFR 1.6038A-3).

What does the corporation file when it pays a foreign owner?

US-source payments to a foreign owner can create a separate withholding and reporting duty. For reportable payments, the corporation generally files Form 1042 and separate Forms 1042-S by recipient, income type, and withholding rate, even when a treaty or exemption reduces withholding to zero. These forms are generally due March 15 of the following calendar year (IRS: Publication 515; IRS: Form 1042-S instructions).

Keep the owner's Form W-8BEN or foreign company's Form W-8BEN-E where applicable, plus the contract and work-location evidence. Withholding can require deposits before the annual forms are due (IRS: Publication 515). See Paying yourself as a foreign owner for rates and payment choices.

What else might the corporation file?

Federal income tax filings do not replace bank-account or state filings. The corporation's accounts, place of formation, and places of business decide what else applies.

Incorporating in one state does not settle whether another state also requires a return. See Delaware franchise tax and California minimum tax for those states. Under FinCEN's current rule, a company formed in the US is exempt from beneficial ownership information reporting, even if its owners live abroad (FinCEN).

What is the penalty for missing Form 5472 or Form 1120?

A required Form 5472 filed late, filed substantially incomplete, or unsupported by required records can trigger a $25,000 penalty. If the failure continues more than 90 days after IRS notice, additional $25,000 penalties can apply for each related party and each further 30-day period or part of one (IRS: Form 5472 instructions).

For a late Form 1120, the ordinary failure-to-file penalty is generally 5% of unpaid tax per month or part month, capped at 25% of unpaid tax. A zero-tax return may have no ordinary income-tax late-filing penalty, but that does not remove the filing duty or a separate Form 5472 penalty (IRS: Form 1120 instructions). If prior years are missing, see Missed foreign-owner filings and penalties and Catching up on unfiled business returns.

What changes if a foreign company owns the corporation?

The US corporation's Form 1120 and Form 5472 tests are the same when the shareholder is a foreign company. Transactions with the parent or another related company can require separate Forms 5472. Trace the ownership chain and identify every direct or indirect foreign shareholder meeting the ownership test (IRS: Form 5472 instructions).

For payments to the foreign parent, get the correct entity withholding certificate and check treaty eligibility before applying any reduced withholding. Fees, interest, dividends, and intercompany loans may also need pricing and documentation review. The parent's own tax position in its country of residence is separate; for a Canadian parent, see Foreign property and affiliate reporting. If the company is Canadian rather than US, see Canadian corporation US tax returns.

Example

Illustrative US dollars. A US C corporation is wholly owned by one foreign shareholder and begins the year with no owner loan. It receives $50,000 for newly issued shares, borrows $20,000 from the shareholder, pays $1,000 of interest, and has no customer revenue. The corporation still files a full Form 1120. The loan and interest require Form 5472 for that shareholder; the cash share purchase alone generally does not. If the loan remains outstanding at year-end, Part IV line 17 shows a $0 opening balance and $20,000 closing balance under the outstanding-balance method. Line 32 shows the $1,000 interest paid, assuming section 163(j) does not limit its deduction (IRS: Form 5472; instructions). The corporation checks whether the interest requires withholding and Forms 1042 and 1042-S. It also checks its state annual filings. No customer revenue does not erase those duties.

Different for you?

• You own a single-member LLC instead: the federal return and Form 5472 transaction rules differ. See Foreign-owned single-member LLC filing.
• You are choosing a company type or have not formed one yet: see Forming and running a US company from abroad.
• The owner works abroad for the corporation: where the work is performed changes the source of service income and payment reporting. See When foreign owners owe US tax.
• You pay yourself dividends, wages, interest, or fees: see Paying yourself as a foreign owner.
• You missed a return or got a penalty notice: see Missed foreign-owner filings and penalties or Catching up on unfiled business returns.
• It is the first year and there was no revenue: see First corporate return with no revenue.
• You funded the corporation or paid its bills yourself: see Putting money into your US corporation from abroad.
• A company abroad owns the corporation, or the corporation owns one abroad: see US subsidiary of a foreign company or US parent of a foreign operating company.
• The corporation is run entirely from abroad: see US corporation run from abroad.
• You live in Canada: see Canadian owner of a US corporation.
• You are hiring someone to file: see What your preparer needs.
• The shareholder or corporation also has filing duties in another country: gather both countries' returns, ownership records, and intercompany agreements for cross-border tax.