New Company Registration for Mississippi

Tax Agency 

Mississippi Department of Revenue

 

Type of Tax

State Withholding Income Tax

Registration Steps:

  1. Register for a withholding tax account number
    • Go to Mississippi Department of Revenue Taxpayer Access Point  (TAP)
    • Select Register for Taxes
    • Select register a new taxpayer
    • Select entity type, FIEN and complete remaining steps
  2. Create a username and password
    • Once you have received your withholding tax account number, set up online access
    • Go back to Taxpayer Access Point  (TAP)
    • Click on “sign up” on top corner
    • Select sign up for online access
    • Complete information

Update your Homebase account with your Mississippi withholding tax account number.  Your withholding tax account number is required for all MS Department of Revenue interactions to ensure your account is accurate

If you have any questions regarding this process, contact registration at (601) 923-7700. 

 

Tax Agency

Mississippi Department of Employment Security (MDES)

 

Type of Tax

Unemployment Insurance Tax (UI)

Registration Steps:

  1. Register for Mississippi Department of Employment Security Account Number
    • Go to MDES website
    • Click “register here”
    • Under “For Reporting and Payment of Unemployment Taxes,” click on Register a New Business
    • Complete employer registration
  2. Create a username and password
    • Once you have received your account number, go back to Go to MDES website
    • Complete employer signup and create username and password

      Update your Homebase account with your Mississippi Department of Employment Security Account Number. Your account number is required for all Mississippi tax interactions to ensure your account is accurate.

      If you have any questions regarding this process, please call 601-493-9427 or email tax@mdes.ms.gov.

  3. Employers must register for email correspondence
    • Click on “Employers are required to register for E-mail Correspondence”
    • Follow the steps provided
    • View your correspondence immediately as unemployment insurance correspondence are time-sensitive

Disclaimer:
This article is not intended to be tax, legal, financial, or HR advice. Rules and regulations change over time and can vary by location. Consult with a lawyer, accountant, Tax, or HR expert for specific guidance.

Last Updated 12/1/2021