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
Publication 501: Exemptions, Standard Deductions and Filing Information discusses some tax rules that affect every person who may have to file a federal income tax return. It answers some basic questions: who must file; who should file; what filing status to use; how many exemptions to claim; and the amount of the standard deduction. The first section of this publication explains who must file an income tax return. If you have little or no gross income, reading this section will help you decide if you have to file a return. The second section is about who should file a return. Reading this section will help you decide if you should file a return, even if you are not required to do so. The third section helps you determine which filing status to use. Filing status is important in determining whether you must file a return, your standard deduction, and your tax rate. It also helps determine what credits you may be entitled to. The fourth section discusses exemptions, which reduce your taxable income. The discussions include the social security number requirement for dependents, the rules for multiple support agreements, and the rules for divorced or separated parents.
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