Form W-8ECI Certificate of Foreign Person's Claim That Income Is Effectively Connected With the Conduct of a Trade or Business in the United States
Instructions for Form W-8ECI, Certificate of Foreign Person's Claim That Income Is Effectively Connected With the Conduct of a Trade or Business in the United States
Instructions for the Requester of Forms W-8BEN, W-8ECI, W-8EXP, and W-8IMY

Form 926 Return by a U.S. Transferor of Property to a Foreign Corporation

Form 1041-A U.S. Information Return Trust Accumulation of Charitable Amounts

Form 1042 Annual Withholding Tax Return for U.S. Source Income of Foreign Persons
Instructions for Form 1042, Annual Withholding Tax Return for U.S. Source Income of Foreign Persons

Form 1120 U.S. Corporation Income Tax Return
Instructions for Form 1120, U.S. Corporation Income Tax Return

Form 1120-F U.S. Income Tax Return of a Foreign Corporation
Instructions for Form 1120-F, U.S. Income Tax Return of a Foreign Corporation

Form 1120-FSC U.S. Income Tax Return of a Foreign Sales Corporation
Instructions for Form 1120-FSC, U.S. Income Tax Return of a Foreign Sales Corporation

Form 1120-S U.S. Income Tax Return for an S Corporation
Instructions for Form 1120-S, U.S. Income Tax Return for an S Corporation

Form 1120-X Amended U.S. Corporation Income Tax Return

Form 3520-A Annual Information Return of Foreign Trust With a U.S. Owner
Instructions for Form 3520-A, Annual Information Return of Foreign Trust With a U.S. Owner

Form 5471 Information Return of U.S. Persons With Respect To Certain Foreign Corporations
Instructions for Form 5471, Information Return of U.S. Persons With Respect to Certain Foreign Corporations

Form 8288 U.S. Withholding Tax Return for Dispositions by Foreign Persons of U.S. Real Property Interests
Instructions for Form 8288, U.S. Withholding Tax Return for Dispositions by Foreign Persons of U.S. Real Property Interests

Form 8453-C U.S. Corporation Income Tax Declaration for an IRS e-file Return

Form 8865 Return of U.S. Persons With Respect to Certain Foreign Partnerships
Instructions for Form 8865, Return of U.S. Persons With Respect to Certain Foreign Partnerships