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IRSCorporate Tax (1120 Series)

Official form guide

Form 1120-FP: 1120-F (Schedule P)

IRS Form 1120-FP is used to report foreign corporations' distributive shares of income or loss from partnership interests. It reconciles effectively connected income (ECI) with total income and expenses reported on Schedule K-3 (Form 1065). No specific tax rates, deadlines, or thresholds are stated in the official source.

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Form Overview

IRS Form 1120-FP - 1120-F (Schedule P)

IRS Form 1120-FP is used to report foreign corporations' distributive shares of income or loss from partnership interests. It reconciles effectively connected income (ECI) with total income and expenses reported on Schedule K-3 (Form 1065). No specific tax rates, deadlines, or thresholds are stated in the official source.

Part I identifies partnership interests from which a foreign corporation has a distributive share of income or loss effectively connected with a trade or business in the United States. Parts II and III reconcile the corporate's distributive share of ECI, allocable expenses, and determine the outside basis for interest expense allocation. Parts IV and V are used to report transfers of partnership interests during the tax year.

Risk Radar

Scan points
  • 1For transfers, use information from Part XIII of Form 1065; otherwise, contact the partnership for necessary data.
  • 2Failing to report a transfer of a partnership interest listed in Part I if the 'No' box was checked in column (d).
  • 3Omitting required information in Parts IV and V for each separate partnership interest transferred during the year.
  • 4Not attaching Form 8833 and providing detailed explanation when claiming a treaty-based return position on Part V.
  • 5Incorrectly calculating the average value of liabilities or outside basis reported on Part II, lines 11 and 13.

Plain English

This form helps foreign corporations report their share of income and losses from partnerships that operate within the United States. It ensures that the corporation correctly accounts for its business activities by reconciling internal financial data with information provided on a Schedule K-3 (Form 1065). Filing this document is necessary to accurately determine the corporate tax liability related to foreign investments.

Submission Date

  • Filing date: 2026-01-07 09:10:39
  • Preparation window: collect IDs, supporting records, and signatures in advance.
  • Final review: verify names, dates, and required fields before submission.

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Glossary Terms

Hover a term to preview the meaning.

What this form is for

  • Use this form when a foreign corporation transfers an interest in a partnership that directly or indirectly is engaged in a trade or business within the United States or holds any U.S. real property interests.
  • Do not use it when no required transfer of interest or ownership of U.S. real property interests occurs, unless other reporting requirements apply.
  • Check Form 8288-A (Statement of Withholding on Certain Dispositions by Foreign Persons) instead when a foreign corporation transfers a partnership interest and must withhold tax on the amount realized.

Form selector

Use this form or another form?

Filing requires reporting withholding tax on certain transfers of partnership interests

This form is required if a foreign corporation transfers an interest and the transferee must withhold tax on the amount realized.

Check that the correct transfer type matches the Withholding Statement.

Form 8288-A

Claiming exemptions for ECI or gain/loss requires filing a protective election return

Attaching this form is necessary when claiming relief from completing Parts II, III, IV, or V of Schedule P based on tax treaties.

Ensure the Protective Election details match the treaty provisions.

Form 8833

The source for transfer information in Parts IV and V must be obtained from a partnership's K-3 report

The corporation should use the data found in Part XIII of the Form 1065 issued by the partnership.

Verify that the K-3 is current and accurately reflects the disposition.

Form 1065

If more than four directly owned interests must be reported, supplementary sheets are required

Use separate attached sheets matching the size and format of the schedule for additional reporting lines.

Do not forget to sum all totals in Parts II and III across both the main form and the attachments.

Attached Schedule P Sheets

Deadline or filing window

Not stated in the official source.

Checklist

What you need before filling it out

1

Directly owned partnership interests (Part I)

Proof of direct ownership status · Schedule P instructions p.2

Mistake: Including indirectly owned or lower-tier interests.Risk level: High
2

Reporting additional directly owned interests

Separate sheets matching the schedule's size and format · Instructions p.2

Mistake: Failing to enter the sum for all interests (including attachments) in the Parts II and III 'Totals' column.Risk level: Medium
3

Transferring an interest in a partnership that is engaged in U.S. trade or business or holds U.S. real property

Confirmation of transfer details and tax withholding requirements · Instructions p.1

Mistake: Assuming filing is unnecessary when a qualifying transfer occurs.Risk level: High
4

Claiming exemption from Parts II/III (ECI) or IV/V (Transfers)

Filing a protective tax return under Regulations section 1.882-4(a)(3)(vi) and attaching Form 8833 · Instructions p.2

Mistake: Relying solely on the income tax treaty without filing the required protective election documentation.Risk level: High
5

Reporting gain or loss from a partnership interest transfer (Parts IV/V)

Information from Part XIII of the Schedule K-3 (Form 1065) issued by the partnership · Instructions p.5

Mistake: Using general accounting records instead of the specific data provided in Form 1065, Part XIII.Risk level: High

Before you submit

  1. 1Attach Schedule P (Form 1120-F) to the foreign corporation’s Form 1120-F income tax return.
  2. 2If any ECI or effectively connected gain or loss is exempt pursuant to an applicable income tax treaty, complete Part I and attach Form 8833.
  3. 3When completing Parts IV and V for partnership interest transfers, use the information from Part XIII of the Schedule K-3 (Form 1065) issued by the partnership.
  4. 4If the corporation directly owns more than four required partnership interests, report the additional information on attached separate sheets using the same size and format as shown on the schedule.
  5. 5Do not include any interest in an entity classified as a disregarded entity under Regulations section 301.7701-2(c)(2).
  6. 6For lower-tier partnership interests, only report income if the corporation also owns a direct interest in that lower-tier partnership.
  7. 7If filing a protective tax return under Regulations section 1.882-4(a)(3)(vi), ensure Form 8833 is attached.

How to file this form

  1. 1Determine if the foreign corporation must complete Schedule P (Form 1120-F) because it transferred a partnership interest or owns U.S. real property interests.
  2. 2Complete Part I of Form 1120-F by listing all foreign partner’s interests in partnerships, including names, addresses, and EINs, and confirming the ECI status for each interest.
  3. 3If the corporation directly owns more than four partnership interests, report the required information for those additional interests on separate sheets attached to Form 1120-F.
  4. 4Attach Schedule P (Form 1120-F) to the foreign corporation’s main Form 1120-F income tax return and file according to the instructions provided with Form 1120-F.

Known limitations

  1. 1Do not file Schedule P if none of the distributive shares from any of the corporation’s partnership interests include ECI, or expenses allocable to ECI, and there has been no transfer of an interest meeting specified criteria [Instructions p.1].
  2. 2Part I must only list directly owned partnership interests that have ECI included in the partner’s distributive share on Schedule K-3 (Form 1065) [Instructions p.2].
  3. 3The form does not include any interest in an entity classified as a disregarded entity [Instructions p.2].
  4. 4For transfers, do not report on Part IV any partnership interest listed in Part I for which the “No” box was checked in column (d) [Instructions p.5].

Field map

Compact field-by-field guide

9 fields

Entity Info

2 items

Corporation Name and EIN

Full legal name of the corporation and its Employer Identification Number.

Requiredtext
Address and Date Incorporated

Current mailing address and date of incorporation.

Requiredtext

Income

3 items

Gross Receipts or Sales

Total revenue from business operations before deducting costs.

Requiredamount
Cost of Goods Sold

Direct costs attributable to producing goods sold by the corporation.

amount
Total Income

Gross receipts minus cost of goods sold and returns/allowances.

Requiredamount

Deductions

1 items

Total Deductions

Sum of all business expenses including compensation, rent, interest, taxes, and depreciation.

Requiredamount

Tax

2 items

Taxable Income

Total income minus total deductions.

Requiredamount
Total Tax

Tax calculated on taxable income using the applicable corporate tax rate, minus any credits.

Requiredamount

Signatures

1 items

Officer Signature

An authorized corporate officer must sign and date the return.

Requiredsignature
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Current form status
IRS

The current edition of Schedule P (Form 1120-F) is the 20/25 revision. For the latest information regarding this form and its instructions, filers should consult IRS.gov/Form1120F.

What changed or needs a fresh check

  • Edition date — confirm the revision reads 20/25.
  • Fee — Not stated in the official source.
  • Mailing address — Not stated in the official source.
  • Signature — Not stated in the official source.

Quick Facts

Foreign corporations must file IRS Form 1120-FP.
Part I identifies partnership interests from which a foreign corporation has a distributive share of income or loss effectively connected with a trade or business in the United States. Parts II and III reconcile the corporate's distributive share of ECI, allocable expenses, and determine the outside basis for interest expense allocation. Parts IV and V are used to report transfers of partnership interests during the tax year.
Not stated in the official source.
Not stated in the official source.
If a corporation takes a treaty-based return position regarding amounts reported on Part V, it must attach Form 8833 and provide a detailed explanation. Failure to report required information can result in incorrect tax filings related to U.S.-connected income.
The form begins by using Part I to identify all partnership interests that generate effectively connected income (ECI). Parts II and III are completed next, where the corporation reconciles its distributive share of ECI and allocable expenses against data from a Schedule K-3 (Form 1065). Finally, if any partnership interests were transferred during the year, those transactions must be reported using separate entries in Part IV and corresponding details in Part V.

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After you file

  1. 1Retain all documentation related to protective elections and applicable income tax treaties for future reference.
  2. 2Keep a copy of the filed Schedule P (Form 1120-F) along with all supporting attachments, including Form 8833s.
  3. 3If an error is discovered after filing, file a corrected return following IRS instructions for amended returns.
  4. 4Maintain records of any communications with partnerships regarding missing Form 1065 (Part XIII) data.

Sources

  • SRCInstructions p.1 — To find the latest information regarding developments related to Schedule P (Form 1120-F), visit IRS.gov/ Form1120F.
  • SRCInstructions p.2 — The filer must attach Schedule P (Form 1120-F) to the foreign corporation’s Form 1120-F income tax return.
  • SRCInstructions p.2 — Part I must list the name, address, and EIN of each directly owned partnership interest that has ECI in the distributive share on Schedule K-3 (Form 1065).
  • SRCInstructions p.2 — The corporation's distributive share as ECI earned through lower-tier partnership interests is includible on the Schedule K-3 (Form 1065) reportable to the corporation by a directly owned partnership [Instructions p.2].
  • SRCinstructions p.2 — Schedule P (Form 1120-F) accommodates reporting for four directly owned partnership interests.
  • SRCInstructions p.5 — When completing Parts IV and V, the foreign corporation should use information from Part XIII of the Schedule K-3 (Form 1065) issued by the partnership [Instructions p.5].

Common confusion points

Which partnership interests are reportable?

Only directly owned partnership interests that have ECI in the distributive share on Schedule K-3 (Form 1065) should be listed in Part I, up to four such interests [Instructions p.2].

What if a lower-tier partnership has income?

Do not report indirectly owned partnership interests unless the corporation also owns a direct interest in that lower-tier partnership [Instructions p.2].

If I have ECI that is exempt via a treaty, do I still file?

Yes, you must still complete Part I and attach Form 8833 even if the gain or loss is exempt pursuant to an applicable income tax treaty [Instructions p.2].

What data do I need for transfers (Parts IV & V)?

Use information from Part XIII of the Schedule K-3 (Form 1065) issued by the partnership; otherwise, contact the partnership to obtain lines 4, 6, 7, and 10 of Part V [Instructions p.5].

What types of expenses must I report?

Report interest expense directly allocable under Regulations section 1.882-5(a)(1)(ii)(B) and interest expense on U.S. booked liabilities under Regulations section 1.882-5(d)(2)(vii) [Form p.1].

How do I report multiple partnerships?

Complete a separate line in Part I, and the corresponding columns in Parts II and III, for each directly owned partnership interest (up to four) [Instructions p.2].

Workflow map

Related forms and next steps

4 signals

Before

None listed

Current

1120-FP

After

Filing the foreign corporation’s income tax return requires attaching Schedule P (Form 1120-F) to Form 1120-F itself [Instructions p.2].

Often used with

Form 1065 provides Schedule K-3, which contains necessary information regarding ECI that must be reported on Schedule P (Form 1120-F) [Instructions p.2].Form 8833 must be attached when filing a protective tax return relating to Schedule P (Form 1120-F) [Instructions p.2].

Questions about IRS Form 1120-FP

What is IRS Form 1120-FP used for?

This form helps foreign corporations report their share of income and losses from partnerships that operate within the United States. It ensures that the corporation correctly accounts for its business activities by reconciling internal financial data with information provided on a Schedule K-3 (Form 1065). Filing this document is necessary to accurately determine the corporate tax liability related to foreign investments.

Who must file IRS Form 1120-FP?

Foreign corporations must file IRS Form 1120-FP.

What information does IRS Form 1120-FP require?

Part I identifies partnership interests from which a foreign corporation has a distributive share of income or loss effectively connected with a trade or business in the United States. Parts II and III reconcile the corporate's distributive share of ECI, allocable expenses, and determine the outside basis for interest expense allocation. Parts IV and V are used to report transfers of partnership interests during the tax year.

How do I complete IRS Form 1120-FP?

The form begins by using Part I to identify all partnership interests that generate effectively connected income (ECI). Parts II and III are completed next, where the corporation reconciles its distributive share of ECI and allocable expenses against data from a Schedule K-3 (Form 1065). Finally, if any partnership interests were transferred during the year, those transactions must be reported using separate entries in Part IV and corresponding details in Part V.

What happens if IRS Form 1120-FP is filed incorrectly?

If a corporation takes a treaty-based return position regarding amounts reported on Part V, it must attach Form 8833 and provide a detailed explanation. Failure to report required information can result in incorrect tax filings related to U.S.-connected income.

Which partnership interests are reportable?

Only directly owned partnership interests that have ECI in the distributive share on Schedule K-3 (Form 1065) should be listed in Part I, up to four such interests [Instructions p.2].

What if a lower-tier partnership has income?

Do not report indirectly owned partnership interests unless the corporation also owns a direct interest in that lower-tier partnership [Instructions p.2].

If I have ECI that is exempt via a treaty, do I still file?

Yes, you must still complete Part I and attach Form 8833 even if the gain or loss is exempt pursuant to an applicable income tax treaty [Instructions p.2].

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Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
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