Set up filing for Mississippi
Provide your Mississippi tax account information to set up automated filing.

Tax registration effective date
- The date your sales tax registration started with the state.
- Check your registration certificate or contact the Mississippi Department of Revenue at 601-923-7015 to request this information.
State Tax ID
- Enter the 9-character state tax ID in the format 0000-0000.
- Check your registration certificate or log into your Mississippi Taxpayer Access Point (TAP) account. Your ID is listed on the Summary tab in the Account section.

Letter ID
- Enter the 11-character letter ID. It starts with L followed by 10 digits.
- Check the registration package mailed to you by the state. You can also log into your Mississippi Taxpayer Access Point (TAP) account, select More Actions, then View Letters under the Correspondence section to find your Letter ID.
Mississippi registration license type
- Select the license or account type for your Mississippi sales tax ID.
- Log in to your Mississippi Taxpayer Access Point (TAP) account and find your license type listed on the Summary tab.
When did this license type take effect?
- Enter the date this license type took effect.
- Check your registration certificate or contact the Mississippi Department of Revenue at 601-923-7015 to request this information.
Filing frequency
- This is your filing frequency, as assigned by the state or local tax authority.
- Check your registration certificate or log into your Mississippi Taxpayer Access Point (TAP) account and go to the File, View, or Amend Return section. Your filing frequency is listed on the returns you're expected to file.
What to expect next
After you complete your filing application, here's what happens next:
- Under review: Within a few days, TaxJar will review your submission for accuracy and process your application.
- IMPORTANT: Your TaxJar account is created using the email address associated with your Stripe account, so if the TaxJar team needs to contact you, this is the email address we use by default. (Follow these instructions if you want to change this email address within your TaxJar account).
- Filing setup complete: Once TaxJar processes your application, you'll get an email when it's time to review your first filing.
- File your first tax return: When your first filing period is due, you’ll receive an email to review the return before TaxJar submits it.
Mississippi registration license type