California sales and use tax law is specific regarding how trade show and convention activities in the state affect nexus. An out-of-state retailer does not have nexus with California if all of the following are true:
- The retailer’s sole physical presence in this state is to engage in convention and trade show activities as described in Section 513(d)(3)(A) of the Internal Revenue Code
- The retailer, including any of his or her representatives, agents, salespersons, canvassers, independent contractors, or solicitors, does not engage in those convention and trade show activities for more than 15 days, in whole or in part, in this state during any 12-month period
- The retailer did not derive more than $100,000 of net income from those activities in this state during the prior calendar year.
It continues: “Notwithstanding the preceding sentence, a retailer engaging in convention and trade show activities, as described in Section 513(d)(3)(A) of the Internal Revenue Code, is a ‘retailer engaged in business in this state,’ and is liable for collection of the applicable use tax, with respect to any sale of tangible personal property occurring at the convention and trade show activities and with respect to any sale of tangible personal property made pursuant to an order taken at or during those convention and trade show activities.
For additional information, see California Sales and Use Tax Law Chapter 3, Article 1, Section 6203; BOE publication 77, Out-of-State Sellers and appendix; BOE publication 109, Internet Sales, and Regulation 1684, Collection of Use Tax by Retailers.