louisiana state tax commission phone number
The city and Caddo Parishâs combined sales tax rate is 4.6%. If you need more information, contact Caddo-Shreveport Sales and Use Tax Commission at 318-865-3312. In addition to local sales taxes, the state collects a 5% sales tax on most retail items and certain services. You are required to register with the State of Louisiana's Department of Revenue and Taxation to receive your sales tax account number, and submit your sales tax liability as required by the department.