Mississippi Sales Tax Nexus
Mississippi Risk Profile
The Trigger: $250,000 in annual gross sales.
(Note: Mississippi is a revenue-only state for economic nexus. The 200-transaction rule was repealed on July 1, 2023.)
Physical Nexus: Standard triggers apply (offices, employees, inventory). Mississippi is aggressive in monitoring use tax reports from local businesses to identify out-of-state vendors that should be registered for sales tax.
Effective Date: December 1, 2017 (one of the earliest in the nation).
Look-back Exposure: Generally 3 years. Mississippi is NOT a member of the Streamlined Sales Tax (SST) agreement, which means they operate under independent, often more rigid, audit procedures.
Danger Level: MODERATE (The $250k Threshold Trap)
Because Mississippi has a higher threshold ($250,000) than most states ($100,000), many sellers forget to monitor it. However, once you cross that line, Mississippi requires registration for BOTH sales tax and corporate income tax, leading to high cumulative liability if missed.
The Trap: Grocery Taxability
Remote sellers often assume that groceries are exempt nationwide. In Mississippi, they are fully taxable at 7%. Failing to collect tax on food items shipped to Mississippi is one of the most common—and expensive—errors found during audits.
Mississippi State Tax Nexus Summary
Mississippi maintains a higher economic nexus threshold than most states, but its enforcement is diligent. Businesses selling into the state must be aware of the state’s unique taxability rules, especially regarding groceries and digital services.
Sales Tax Nexus
Remote sellers and marketplace facilitators establish nexus in Mississippi if they meet the following threshold in any consecutive 12-month period:
- Economic Threshold: $250,000 or more in gross sales delivered into Mississippi.
- Update: As of July 1, 2023, Mississippi no longer utilizes a transaction count (formerly 200 sales) to determine nexus.
Physical nexus is triggered immediately by having a physical presence in the state, such as an office, remote employees, or inventory stored in a Mississippi warehouse or fulfillment center.
Corporate Income Tax Nexus
Mississippi imposes a flat 5% corporate income tax. If your business establishes a substantial economic presence—generally aligned with the $250,000 sales threshold—you may be required to file a Mississippi corporate return, regardless of physical presence.
Taxability of Groceries and SaaS
Unlike many states, Mississippi taxes groceries at the full state rate of 7%. Furthermore, the state is aggressive in taxing digital products and Software-as-a-Service (SaaS), classifying them as taxable computer software services.
Conclusion
Because Mississippi is not an SST member, their rules can be less flexible during an audit. We recommend a full review of your Mississippi sales, especially if you sell food or digital products, to ensure you are meeting the state’s unique collection requirements.
