Economic Nexus Threshold Calculator

How it is calculated

Economic nexus is a sales or transaction volume into a state that creates a duty to register and collect there, regardless of physical presence. The test is normally sales exceeding a dollar threshold, a transaction count, or in some states either.

The common threshold since the 2018 Wayfair decision is $100,000 in sales, with some states at $500,000 and a shrinking number still counting transactions. The measurement period is usually the current or previous calendar year, but not universally.

The same thing with real figures

A seller with $118,000 into a $100,000-threshold state has crossed it. Registration is typically required within 30 days or by the first day of the following month, depending on the state.

Now a seller with 240 orders averaging $58, $13,920, into a state with a $100,000 or 200 transactions test. The dollar figure is nowhere near, and the transaction count has crossed it. Registration is required on volume that generates a few hundred dollars of tax.

That transaction-count trap is why several states have dropped the count entirely in recent years, and why the ones that retain it catch small sellers who never imagined they had an obligation.

The catch

Whether the threshold measures gross sales, retail sales or taxable sales differs by state, as does whether marketplace sales count toward it. A seller whose Amazon sales push them over a gross-sales threshold may have a registration duty even though the marketplace remitted all the tax.

The measurement period also varies: current year, previous year, or a rolling twelve months, which means the same sales history crosses in different states at different moments.

Applying it

Track sales and transaction counts by state monthly against each state's specific threshold and measurement basis. That report is the whole of nexus management, and most businesses do not have it until an assessment arrives.

Then register promptly on crossing. Late registration means the tax that should have been collected is owed anyway, out of margin, plus penalties and interest, and it cannot be billed back to customers.

The other kinds of nexus that still exist

Economic nexus did not replace physical nexus, it added to it. An office, an employee, a contractor, a trade show above a certain duration, or inventory held in a state all create nexus regardless of sales volume.

Inventory is the one that catches ecommerce sellers hardest. Stock held in a third-party warehouse creates physical nexus in that state in most jurisdictions, and marketplace fulfilment networks move inventory between states without telling the seller in advance.

That means a seller using a national fulfilment network can acquire nexus in a dozen states without making a single decision about it. Pulling the inventory location report from the marketplace and checking it against registrations is a specific, five-minute exercise that most sellers have never run, and it is the single most common source of unexpected assessments.

Most states run voluntary disclosure programmes that limit the lookback period and waive penalties for sellers who come forward before being contacted.

The terms are considerably better than what follows an audit, and the programmes close to any seller the state has already approached. Where a past obligation is discovered, acting on it promptly is worth substantially more than hoping it goes unnoticed.