St. Tammany

Louisiana Uniform Local Sales Tax Board

Physical Address:
300 Brownswitch Road
Slidell, LA 70458

Mailing Address:
P.O. Box 1189
Slidell, LA 70459

Phone: (985) 726-7777
Fax: (985) 726-7767
Email: Shawn McManusDirector
Website: St. Tammany Parish Sheriff’s Office

Normal Business Hours: Monday through Friday, 8:00 am to 4:30 pm

Holidays (subject to change each year):
New Year’s Day, Martin Luther King Day, Good Friday (Easter), Mardi Gras (Tuesday Only), Memorial Day, Independence Day, Labor Day, Thanksgiving, Day after Thanksgiving, Christmas Eve, Christmas Day

Effective 1/1/2025:

Effective January 1, 2025, the City of Slidell will increase their tax rate by .38%.

To view rates and forms for St. Tammany Parish, CLICK HERE.