Do trade shows, conferences, or events trigger sales tax nexus?

Attending a trade show and making sales in a state creates physical nexus in most states. The key variable is whether you have sales activity (taking orders, accepting payment, transferring goods) or whether you’re just there to network.

The general rule

Physical nexus from trade shows comes down to one question: are you conducting sales activity in the state?

Creates nexus in most states:

• Setting up a booth and selling goods at the show
• Taking orders from buyers in the state that will be fulfilled later
• Accepting payment in the state
• Delivering inventory at the show (vendor-to-buyer hand-off on-site)

Generally does not create nexus:

• Attending a conference to network, without a booth or sales activity
• Handing out brochures or samples without taking orders
• Meeting with suppliers or partners (no sales component)
• Sending staff to attend panels or training

The distinction is activity, not presence. Presence alone (even at a booth) is less likely to trigger nexus if no transactions occur. Once you start taking orders or payment, the analysis changes.

The “regular and systematic” standard

States don’t agree on how much trade show activity is required to create nexus. Two standards are common:

Any sales activity triggers nexus: Some states apply nexus from the first time you make a sale in the state, regardless of frequency. One trade show appearance with sales = nexus.

“Regular and systematic” activity required: Other states require a pattern of activity, not just one isolated visit. Under this standard, a single annual appearance at the same show might qualify; attending once and never returning might not. States that follow this standard typically look at whether your trade show presence is part of a recurring business practice in the state.

Because the rule varies and is fact-specific, the safest position for brands that regularly exhibit at trade shows in the same states year after year is to treat those states as nexus states.

States with specific de minimis rules

A few states have enacted specific trade show exemptions or de minimis thresholds, typically for very short appearances (one or two days) with limited sales. These vary widely and are worth checking if you have a specific single-event question.

The more common situation for ecommerce brands: You attend 3–8 trade shows per year across the country, make wholesale orders at some of them, and have been doing this for several years. In that scenario, the states where you regularly exhibit and sell almost certainly have a nexus argument against you.

What to do if you’ve been exhibiting for years without registering

The exposure runs from the first event where you had sales activity in each state. That lookback can be significant if you’ve been doing trade shows for five or more years.

The standard resolution path is a Voluntary Disclosure Agreement (VDA). Most states offer VDAs, and they typically:

• Limit the lookback period to 3–4 years (rather than the full exposure history)
• Waive penalties on the back taxes owed
• Require payment of the agreed back taxes plus interest

VDAs are almost always the better path than registering retroactively and hoping the state doesn’t notice the gap. The MTC Multi-State Voluntary Disclosure Program lets you file in multiple states simultaneously, which is useful if trade show activity has created exposure across many states at once.

Related: What is a VDA, and when should I use one? | What happens if I was supposed to register earlier and didn’t?