Economic Nexus Threshold Calculator
When you cross a state's registration threshold.
Rates change with budgets and local ballot measures, and the rate that applies depends on the delivery address and product category. Treat these as planning figures, not as a filing.
California economic nexus
12% of threshold
not yet required to register
California has the highest statewide base rate in the country at 7.25%, and district taxes push most addresses well above it. The economic nexus threshold is $500,000 with no transaction count. Watch the trailing 12-month figure rather than the calendar year — most states test on a rolling basis.
How the Economic Nexus Threshold Calculator works
Since the Wayfair decision, physical presence is no longer required to owe sales tax — enough sales into a state creates the obligation on its own. Most states settled on $100,000 or 200 transactions, but the larger states set higher bars and several have since dropped the transaction test entirely.
Not financial advice. Marketplace fees change, and they vary by country, plan and seller status. Every rate here is an editable default, not a quoted price — check the platform's current fee schedule before you price a product against it. This is not tax or business advice.
Frequently asked questions
What is economic nexus?
The obligation to register and collect sales tax in a state based on sales volume alone, without any physical presence there. It was established by the 2018 South Dakota v. Wayfair decision and adopted by essentially every state with a sales tax.
What are the usual thresholds?
$100,000 in sales or 200 transactions is the most common pattern. California and Texas use $500,000. New York requires both $500,000 and more than 100 transactions, which is unusually narrow. Several states have dropped the transaction count because it caught tiny sellers of low-priced goods.
Is the threshold measured on the calendar year?
Usually on a rolling 12-month basis, sometimes on the previous or current calendar year. The rolling test is the strict one — check the trailing twelve months, not January to December.
What happens if I miss it?
Liability generally runs from the point you crossed the threshold, not from when you registered. Uncollected tax comes out of your own pocket, with penalties and interest, and it compounds every month you stay unregistered.
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