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Information about Schedule C (Form 1040), Profit or Loss from Business, used to report income or loss from a business operated or profession practiced as a sole proprietor; includes recent updates, related forms, and instructions on how to file.

Schedule C (Form 1040), Profit or Loss from Business (Sole Proprietorship), is used to report income or loss from a business operated or a profession practiced as a sole proprietor.

Schedule C (Form 990 or 990-EZ), Political Campaign and Lobbying Activities, is used by Section 501(c) organizations and Section 527 organizations. These organizations must use Schedule C (Form 990 or 990-EZ) to furnish additional information on political campaign activities or lobbying activities.

Schedule C (Form 1065) is used to provide answers to additional questions for filers of Form 1065 Schedule M-3.

Three changes have been made to the 2023 Instructions for Schedule C (Form 1040). These changes pertain to the standard mileage multiplier, Form 1040-SS filers, and references to Publication 535, which has been retired.

Form 1116 (Schedule C), Foreign Tax Redetermination Schedule, is used to identify foreign tax redeterminations that occur in the current tax year in each separate category, the years to which they relate, and other information that satisfies your obligation to notify the IRS of foreign tax redeterminations that occurred in the current year that relate to prior years.

Form 1040 (Schedule C) (sp), Profit or Loss From Business (Sole Proprietorship) (Spanish Version), is used to report income or loss from a business operated or a profession practiced as a sole proprietor.

We are supplementing the information in the 2023 Instructions for Schedule C (Form 1040) for how Form 1040-SS filers should report their expenses for the business use of the home in 2023.