The 2012 Annual Louisiana Sales Tax Holiday takes place on Friday, August 3, and Saturday, August 4. On these two days, retail sale of most items of tangible personal property are exempt from the 4 percent state sales tax. CLICK HERE for an informational poster. 
The sales tax exemption applies to the first $2,500 of the purchase price of each eligible item. If the purchase of any item exceeds $2,500, the sales tax applies only to the difference in price. For example, if a flat-screen television set costs $2,800, the consumer will pay the 4 percent sales tax on $300 only.
The exemption applies only to the four-percent state sales tax. It does not apply to sales taxes collected by parishes, towns, school boards, or any other taxing authorities. All retailers are required to participate by offering the tax exemption at the time of sale. Sellers may take advantage of a special provision from LDR which offers a $25 credit to offset the cost of reprogramming their cash registers for sales tax holidays. http://revenue.louisiana.gov/forms/lawspolicies/RIB03009.pdf
