If you do not have a LaTAP account, please go to www.revenue.louisiana.gov/latap to register. Simply click on the Register for a LaTAP Account link and follow the instructions. Taxpayers who do not have an LDR account can register for a business account on the LaTAP site. For additional assistance registering your business, creating a LaTAP account, or adding a tax type, visit the LDR FAQ page and select LaTAP. Please note at least one location must be registered when adding the Vapor Retailer tax type.