If your business makes taxable sales to customers in Mississippi, you may need to register for a Mississippi Sales Tax Permit before collecting sales tax. This 2026 guide explains who must register, what information you need, and how to complete the registration process through the Mississippi Taxpayer Access Point (TAP).
For broader information about Mississippi sales tax rules, rates, and taxability, see the Mississippi Sales Tax Guide. For details on filing deadlines and how to submit returns, see the Mississippi Sales Tax Filing Guide.
Quick answers: Mississippi sales tax registration
A quick overview of the authority, registration portal, nexus threshold, and other essentials for registering in Mississippi.
| Fact | Detail |
|---|---|
| Authority | Mississippi Department of Revenue |
| Registration portal | Mississippi Taxpayer Access Point (TAP) |
| Economic nexus threshold | $250,000 in annual sales into Mississippi (no transaction count threshold) |
| Registration fee | Free |
| Renewal period | No periodic renewal required |
Who must register for Mississippi sales tax
You must register for a Mississippi Sales Tax Permit if your business has a sales tax nexus in the state. This usually applies when a business:
- Exceeds the economic nexus threshold of $250,000 in annual sales into Mississippi in the current or previous calendar year, or;
- Has a physical presence in Mississippi, such as an office, employee, warehouse, or inventory stored in the state.
Mississippi's threshold is based solely on sales volume. There is no separate transaction count threshold, which differs from many other states that also apply a 200-transaction rule.
Once you exceed the threshold, you should register before making further taxable sales in Mississippi. If you're unsure whether your business has nexus, see the Mississippi Sales Tax Guide for a broader explanation.
How to register for Mississippi sales tax
Sellers can register online through the Mississippi Taxpayer Access Point (TAP), the state's online tax portal managed by the Mississippi Department of Revenue. This is the same portal you will use to file returns and make payments after registration.
Information you need before registering
Before applying for a Mississippi Sales Tax Permit, have this information ready:
- Your Social Security number (if registering as a sole proprietor with no employees)
- Your Employer Identification Number (EIN), if your business has one (required for corporations, partnerships, and most LLCs)
- North American Industry Classification System (NAICS) code for your primary business activity
- The date of your first sale in Mississippi
- Your business address and any Mississippi locations, if applicable
Registration steps
Follow these steps to register for a Mississippi Sales Tax Permit.
1. Create your online login
Set up your Mississippi Taxpayer Access Point account credentials.
- Choose a username and password
- Set up your security information
- This login is used for all future filings, payments, and account management
If you already have a TAP account for another Mississippi tax type, you can add a sales tax account to your existing login.
2. Provide your business information
Enter your business name, address, type of entity, and any Mississippi locations.
- Remote sellers without a Mississippi location should indicate they are selling remotely
- Mississippi uses destination-based sourcing for remote sellers. You charge based on where the buyer is located
- Because Mississippi has no local sales taxes, the statewide 7% rate applies to all taxable sales regardless of the buyer's location within the state
3. Registration fee
Mississippi does not charge a fee to obtain a Sales Tax Permit. Registration through the Taxpayer Access Point is free.
4. Submit your application
Review your entries and submit the application.
- You will receive an on-screen confirmation after submission
- A confirmation email is typically sent shortly after submission
5. Receive your Mississippi Sales Tax Permit
Once approved, you will receive:
- Your Mississippi Sales Tax Permit number (used for filing and payments)
- Your assigned filing frequency (monthly, quarterly, or annually, based on expected tax liability)
- Access to the Mississippi Taxpayer Access Point for filing, payment, and account management
What happens after registration
After registering, you must begin collecting Mississippi sales tax on taxable sales and file returns based on your assigned filing frequency. Returns and payments are due by the 20th of the month following the reporting period.
Mississippi taxes digital goods and SaaS. The 7% rate applies to most tangible personal property and certain services, including digital products. See the Mississippi Sales Tax Guide for details on taxability.
Because Mississippi has no local sales taxes, you only need to track and remit the single statewide 7% rate, making compliance simpler than in states with layered county and city rates.
➡ Learn more about Mississippi sales tax rates, taxability, and nexus in the Mississippi Sales Tax Guide
➡ See how to file and pay Mississippi sales tax in the Mississippi Sales Tax Filing Guide
Note: At Quaderno we love providing helpful information and best practices about taxes, but we are not certified tax advisors. For further help, or if you are ever in doubt, please consult a professional tax advisor or the local tax authorities.
Need help registering across multiple states?
Watch our webinar: US Sales Tax Registration & Filing Tips + AMA. Learn how international sellers register, file, and manage US sales tax compliance across multiple jurisdictions.
Note: At Quaderno we love providing helpful information and best practices about taxes, but we are not certified tax advisors. For further help, or if you are ever in doubt, please consult a professional tax advisor or the tax authorities.
