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Tax Evasion
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IRS.gov Web Site
How Do You Report Suspected Tax Fraud Activity?
IRS and Tax Treaty Partners Target Liechtenstein Accounts
International Investigations - Criminal Investigation (CI)
Principal Publications Publications
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Links Inside Publications
Publication 17 - Your Federal Income Tax (For Individuals) - What If I Made a Mistake?
Fraud. If there is any underpayment of tax on your return due to fraud, a penalty of 75% of the underpayment...
Forms and Instructions Forms and Instructions
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Relevant Forms
Form 3949-A Information ReferralTopic Screen for this Form
Form 14157 Return Preparer ComplaintTopic Screen for this Form
Form 14157-A Tax Return Preparer Fraud or Misconduct AffidavitTopic Screen for this Form
Form 14242 Reporting Abusive Tax Promotions and/or PromotersTopic Screen for this Form
heading icon Frequently Asked Questions
FAQ - IRS Procedures
What can I do if I think someone has filed a tax return using my social security number? The IRS has security...
Related Topic Links
related topicIncompetence and Disreputable Conduct
related topicLosses from Ponzi-type Investment Schemes
related topicPenalty