2025›Instructions for Form 1120-F
General Instructions
2025 Inst 1120-F (PDF) · 2026-10-03 edition · updated 2026-10-04 · United States
In this part
- Purpose of Form
- Special Returns for Certain Organizations
- Claim for Refund or Credit
- When To File
- Where To File
- Who Must Sign
- Paid Preparer Authorization
- Other Forms, Schedules, and Statements That May Be Required
- Statements
- Assembling the Return
- Accounting Methods
- Accounting Period
- Rounding Off to Whole Dollars
- Recordkeeping
- Payment of Tax Due
- Estimated Tax Payments
- Interest and Penalties
- Special Rules for Foreign Corporations
- Initial Return, Name or Address Change, Final Return, First Post-Merger Return, Amended…
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