Information For...

For you and your family
Standard mileage and other information

Forms and Instructions

Individual Tax Return
Instructions for Form 1040
Request for Taxpayer Identification Number (TIN) and Certification
Request for Transcript of Tax Return


Employee's Withholding Allowance Certificate
Employer's Quarterly Federal Tax Return
Employers engaged in a trade or business who pay compensation
Installment Agreement Request

Popular For Tax Pros

Amend/Fix Return
Apply for Power of Attorney
Apply for an ITIN
Rules Governing Practice before IRS

Criminal Enforcement

Criminal Investigation 2018 Annual Report

IRS Criminal Investigation is pleased to release the 2018 Annual Report reflecting significant accomplishments and criminal enforcement actions taken in fiscal year 2018.

Tax Fraud Alerts

"If it sounds too good to be true, it probably is!" Seek expert advice before you subscribe to any scheme that offers instant wealth or exemption from your obligation as a United States Citizen to pay taxes. Buying into a tax evasion scheme can be very costly.

Criminal Investigation (CI) At a Glance

Criminal Investigation (CI) serves the American public by investigating potential criminal violations of the Internal Revenue Code and related financial crimes in a manner that fosters confidence in the tax system and compliance with the law.

What Criminal Investigation Does

Some people bend the tax law -- others break it. Criminal Investigation's job is to pursue the lawbreakers.

Criminal Investigation Press Releases - Current Year

Links to National and Local CI News Releases for FY 2017

Criminal Investigation Statistical Data

Enforcement statistics show trends in areas of fraud. This data assists Criminal Investigation in determining where to focus our resources.

How to Make an Offshore Voluntary Disclosure

Taxpayers wanting to report undisclosed income or assets should come in through the IRS Voluntary Disclosure Program.

Criminal Investigation Special Agent Careers

A Career In Action! As an IRS Criminal Investigation (CI) Special Agent, you will pull together your accounting and law enforcement skills. CI special agents are duly sworn law enforcement officers who investigate complex financial crimes associated with tax evasion, money laundering, narcotics, public corruption, and much more. Are You Ready For The Challenge?

Information for Retired IRS Criminal Investigation Special Agents

Information for retired IRS Criminal Investigation special agents to apply to "Retired Law Special Agent" credentials under the Law Enforcement Officers Safety Act of 2004.