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How do you report someone to the IRS for not paying taxes?

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December 30, 2008 5:23PM

If you suspect or know of an individual or company that is not complying with the tax laws, you may report this activity by completing Form 3949-A. You may fill out Form 3949-A online, print it and mail it to: Internal Revenue Service

Fresno, CA 93888 If you do not wish to use Form 3949-A, you may send a letter to the address above. Please include the following information, if available: * Name and address of the person you are reporting * The taxpayer identification number (social security number for an individual or employer identification number for a business) * A brief description of the alleged violation, including how you became aware of or obtained the information * The years involved * The estimated dollar amount of any unreported income * Your name, address and daytime telephone number Although you are not required to identify yourself, it is helpful to do so. Your identity can be kept confidential.