Sales Tax Nexus Rules in Louisiana: Thresholds, Requirements, and CPA Action Steps

Economic nexus threshold (current, verified 2026-06-16): $100,000 in gross sales for remote sellers; the 200-transaction prong was repealed effective Aug 1, 2023.

Introduction

Louisiana is one of the most complex sales tax states due to its parish-level tax administration. While economic nexus rules exist at the state level, local compliance remains a major challenge for remote sellers and CPA firms.

What Creates Sales Tax Nexus in Louisiana?

Physical Nexus

Includes offices, inventory, employees, or service activity in Louisiana.

Economic Nexus

Applies to remote sellers exceeding statutory thresholds.

Marketplace Nexus

Marketplace facilitators generally collect and remit tax for marketplace sales.

Economic Nexus Thresholds in Louisiana

A seller establishes economic nexus with $100,000 or more in Louisiana sales in the current or previous calendar year. Louisiana is revenue-only — there is no 200-transaction threshold. For remote sellers the test is gross sales; the 200-transaction prong was repealed effective August 1, 2023.

Does Louisiana Impose Sales Tax?

Yes. Louisiana imposes:

• State sales tax

• Parish and local sales taxes

Local jurisdictions retain significant authority.

Registration Requirements

Remote sellers generally register through the Louisiana Sales and Use Tax Commission for Remote Sellers.

• Centralized registration

• Centralized filing for participating parishes

Filing Frequency and Due Dates

• Monthly filing is standard

• Returns generally due by the 20th of the following month

Penalties and Interest

• Late filing and payment penalties

• Interest accrues on unpaid balances

CPA Action Steps

1. Track Louisiana revenue and transactions

2. Confirm Commission registration eligibility

3. Identify non-participating parish exposure

4. Register promptly

5. Maintain detailed jurisdictional records

Conclusion

Louisiana requires heightened CPA oversight due to local tax complexity. Centralized systems help, but jurisdiction awareness remains critical.