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Information about Form 8878, IRS e-file Signature Authorization for Form 4868 or Form 2350, including recent updates, related forms, and instructions on how to file. Complete Form 8878 when Form 4868 is filed using a Practitioner PIN, or when the ERO is authorized to enter the taxpayer’s PIN.

This page provides instructions and a contact email address for taxpayers experiencing form problems while using Free File Fillable Forms.

Find out what takes place in the formation of a corporation and the resulting tax responsibilities and required forms.

Information about "information only" forms.

105 - Form 4720

Mobile friendly forms are HTML versions of IRS forms that can be filled out on cell phones and tablet devices. These forms adapt to all necessary screen sizes and ensure information is entered into all data fields.

Get a list of IRS forms for corporations.

Completing a Power of Attorney Form for Form 5330

Information about Form 8453-WH, E-file Declaration for Form 1042, including recent updates, related forms, and instructions on how to file. Form 8453-WH is used to authenticate an electronic Form 1042, Annual Withholding Tax Return for U.S. Source Income of Foreign Persons; authorize the electronic return originator (ERO), if any, to transmit via a third-party transmitter; authorize the intermediate service provider (ISP) to transmit via a third-party transmitter if you are filing online (not using an ERO); and provide consent to authorize an electronic funds withdrawal for payment of the balance due on Form 1042.

Information about Form 8879-WH, E-file Authorization for Form 1042, including recent updates, related forms, and instructions on how to file. Form 8879-WH is used by a withholding agent and an electronic return originator (ERO) when the withholding agent wants to use a personal identification number (PIN) to electronically sign a return and, if applicable, consent to electronic funds withdrawal.