Use Form 3949-A to report alleged tax law violations by an individual, a business, or both.
Form 3949-A, Information Referral, is a form by the Internal Service Revenue (IRS), the federal tax agency of the United States. Citizens can use Form 3949-A to report tax violations by individuals, businesses, or both.
There are serious consequences when you commit tax violations, including accrued interest and penalties. If the IRS discovers that you have committed tax fraud, you could face penalties and jail time. While under-reporting your income seems easy and practical to avoid obligations, it is not worth it, as consequences can be severe.
Before using Form 3949-A, make sure that you are using it correctly. According to the IRS, do not use Form 3949-A for the following conditions:
If you are sure about using Form 3949-A, you may start filling it out.
Provide all the information you have about the individual or business you are reporting. For any information that you do not have, leave the space provided blank.
Section A — Information About the Person or Business You Are Reporting
Supply all the information you know about the individual or business you are reporting. If you are reporting an individual, complete 1. If you are reporting a business, complete 2. If you are reporting a business and its owner, complete 1 and 2.
1.
1a. Name of individual
Provide the name of the individual you are reporting.
b. Social Security Number / TIN
Provide the Social Security Number or TIN of the individual you are reporting.
c. Date of birth
Provide the date of birth of the individual you are reporting.
d. to g. Street address; City; State; ZIP code
Provide the complete address of the individual you are reporting.
h. Occupation
Provide the occupation of the individual you are reporting.
i. Email address
Provide the email address of the individual you are reporting.
j. Marital status
Mark the appropriate checkbox to determine if the individual you are reporting is Married, Single, Head of Household, Divorced, or Separated.
k. Name of spouse
Provide the name of the spouse of the individual you are reporting.
2.
2a. Name of business
Provide the name of the business you are reporting.
b. Employer Tax ID Number (EIN)
Provide the Employer Tax ID Number of the business you are reporting.
c. Telephone number
Provide the telephone number of the business you are reporting.
d. to g. Street address; City; State; ZIP code
Provide the complete address of the business you are reporting.
h. Email address
Provide the email address of the business you are reporting.
i. Website
Provide the website of the business you are reporting.
Section B — Describe the Alleged Violation of Income Tax Law
Use this section to determine the violation committed by the individual or business.
3. Alleged violation of income tax law.
Select all the tax violations that apply. Here the definitions of tax violations according to the IRS:
4. Unreported income and tax years
For reports that involve unreported income, indicate the tax years and the dollar amounts.
5. Comments
Provide all the facts you know about the violations.
6. Additional Information
Answer “Yes” or “No” for the following:
a. Are books/records available?
b. Do you consider the taxpayer dangerous?
For c. Banks Financial Institutions used by the taxpayer, provide the following:
Section C — Information About Yourself
The IRS will never share your information with the person or business you are reporting.
7.
7a. Your name
Provide your full legal name.
b. Telephone number
Provide your telephone number.
c. Best time to call
Provide the best time the IRS can call you.
d. to g. Street address; City; State; ZIP
Provide your complete address.
Complete Form 3949-A and submit to:
Internal Revenue Service
PO Box 3801
Ogden, UT 84409