About the Criminal Investigations Division
Criminal Investigations Division
The Criminal Investigations Division (CID) is LDR’s primary criminal tax enforcement unit. Its function is to review alleged violations of the tax laws, to investigate those violations, and to recommend criminal prosecutions as warranted. CID also investigates alleged criminal violations and serious misconduct by LDR employees. In carrying out its role to identify willful noncompliance with the state's tax laws, CID relies on referrals from other divisions, as well as information from other governmental agencies and the public.
- Tax Fraud Hotline( 866.940.7053)
- Facsimile (225.219.2287)
- Email Report Tax Fraud
- Mailing Address
Louisiana Department of Revenue
Criminal Investigations Division
P.O. Box 2389
Baton Rouge, LA 70821-2389
Helpful Links
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Updated February 04, 2025
Frequently-Asked Questions
Why should I file a tax fraud complaint?
Tax fraud is a crime that impacts us all. Tax fraud decreases the revenue available to fund essential state and local services. These services include funds for police and fire departments, highway improvements, libraries, schools, parks, hospitals, courts, etc.. In addition, fraud hurts the honest business owner by placing him at an unfair economic disadvantage.
Do you offer rewards for reporting tax fraud?
No, the Louisiana Department of Revenue does not offer rewards to persons who report suspected tax fraud.
Can I report tax fraud and remain anonymous?
We depend on information provided by the public to help us uncover violations of our State Revenue laws that might otherwise go undetected. As such, we will make every attempt possible to safeguard your identity and will not volunteer that information. However, we cannot guarantee that we will not be required to reveal your identity as a result of a judgment or ruling in a later court proceeding. If you wish to remain anonymous, you should not provide your name or identifying information when reporting the suspected tax fraud.
How is a taxpayer selected for audit?
A taxpayer is selected randomly or by some unusual item reported.
What information do we need?
Be as specific as possible. Include who, what, how, where, when and as many other details as possible in your complaint. Whenever possible, please include:
- The suspected tax violation.
- Full name of the suspect.
- Time period involved.
- Suspect's home address and phone number.
- Suspect's corporation or business name.
- Suspect's business address, phone number, and years in business.
- Suspect's profession, job title and years at the job.
- Suspect's social security number and federal identification number.
- Suspect's bank name, address and account number if known.
- Vehicle ownership (plate number, make, model, color)and location where car/van is kept overnight.
- Cigarette or tobacco products brand (e.g. Marlboro, Newport, etc.), tax stamp on pack of cigarettes (e.g. Louisiana only or no tax stamp.), location where the cigarettes or tobacco products are stored (under the counter, behind a door, warehouse, etc.).
- Does the store have a current Sellers Permit?
- Is the suspect involved in any other criminal activities?