What is 3949 a form?

Form 3949-A is a form used by the Internal Revenue Service (IRS) to report suspected tax fraud or tax evasion. The form can be filed anonymously and can be used to report individuals or businesses that are not complying with tax laws. The form asks for information about the suspected violator, including their name, address, and taxpayer identification number. It also asks for specific details about the suspected fraud or evasion. The IRS encourages individuals to submit Form 3949-A if they have reason to believe that someone is not complying with tax laws. The submission of the form does not guarantee an investigation, but it does provide the IRS with information that may be useful in determining whether or not to pursue an investigation.