What it means
For non-finance managers, understanding nexus is vital because it dictates where your company must register, collect, and pay taxes. Historically, this connection meant having a physical presence, such as an office, a warehouse, or employees living in a state or country.
If you crossed that physical threshold, you had to deal with local tax compliance. Today, the rules have evolved significantly.
Most tax jurisdictions now enforce economic nexus. This means that simply selling a specific volume of goods or services into a region via the internet creates a tax obligation, even if you never step foot there.
Crossing this threshold requires you to register with local tax authorities, charge sales tax to customers, and file regular returns. Ignoring these rules can lead to severe financial penalties, unpaid tax liabilities, and costly audits when authorities discover your untracked regional footprint.
For growing businesses expanding into new markets, monitoring your revenue and physical footprint by region is an essential operational task. Sales teams driving new geographical markets must coordinate closely with finance departments to ensure tax compliance keeps pace with revenue growth.
Nexus is like setting up a stall in a local market. Once you sell enough goods or bring your own tables into the area, the local council expects you to pay market fees and follow their trading rules.
In practice
Real-world examples
Example 1
TechStart sells software online from London. When sales to customers in France exceed the local economic threshold, which in this scenario is the equivalent of $100,000, TechStart creates a tax nexus in France. The finance team registers locally and starts to charge the right tax from that point.
Example 2
A bakery in one US state ships biscuits to customers across the country. By renting a small storage unit in another state to hold stock closer to buyers, the business creates a physical nexus requiring that state's sales tax filings. The owner had assumed that only a shop or an employee would count.
Example 3
A consulting firm based in Bristol sends an advisor to work on a client site in Germany for three weeks. Depending on local rules, this temporary staff placement may create a local business presence and a tax nexus. The firm checks the days-spent limits before travel rather than after the invoice is sent.
Think of it
Nexus is like setting up a stall in a local market. Once you sell enough goods or bring your own tables into the area, the local council expects you to pay market fees and follow their trading rules.
Formula
Calculation
Economic Nexus Test: nexus exists if Annual Sales into the Jurisdiction >= Sales Threshold OR Annual Transactions into the Jurisdiction >= Transaction Threshold
Thresholds are set by each jurisdiction and change from time to time, so always check the current local rules. For this illustration, assume a threshold of $100,000 of sales or 200 transactions a year.
Worked example: in year one, an online seller makes 150 sales into a state with an average value of $400, which is $60,000 in total. Both tests are below the threshold (150 is under 200 and $60,000 is under $100,000), so there is no nexus. In year two it makes 260 sales averaging $300, which is $78,000. Revenue is still below $100,000, but 260 is above 200, so nexus exists. If the seller then has to charge a local tax of 7% and failed to do so, it owes $78,000 x 7% = $5,460 out of its own pocket.Case study
Seen in the real world
This is a fictional, illustrative scenario. BrightView, a mid-sized online retailer of home decor based in Birmingham, experienced rapid sales growth across the UK and into Ireland. The management team focused entirely on marketing, assuming that because BrightView had no physical shops or staff outside England, they only needed to account for UK tax. However, sales to customers in Ireland surpassed the local economic limit, set in this scenario at the equivalent of $70,000 over a twelve-month period.
Under local tax laws, this revenue volume established an economic nexus. Because BrightView failed to track sales by country, the company did not register for local tax collection. Twelve months later, an audit by the Irish tax authority revealed the unpaid liabilities. BrightView had to pay the uncollected tax out of pocket, alongside heavy late-submission fines totalling $15,000.
The finance director subsequently implemented automated geographic sales tracking software to alert management whenever sales in any region approached 50% of the local nexus threshold, preventing future surprise liabilities. The lesson was also about margins. If the retailer's Irish sales that year were $120,000 and the local tax was charged at 20%, the unpaid tax alone was $24,000, on top of the $15,000 of fines. With a typical profit margin of 8%, the retailer would have needed $39,000 / 8% = $487,500 of extra sales to earn back what the missed registration cost.
Watch out
Common mistakes
- Assuming that selling only through an online website exempts you from regional tax obligations.
- Counting only physical offices and ignoring remote workers or storage facilities as sources of connection.
- Forgetting that transaction count limits can trigger compliance duties even if total revenue is low.
Questions
People also ask
Does having a website automatically create a nexus everywhere?
No, simply having an accessible website does not create a tax obligation. You typically need to cross specific revenue or transaction thresholds in that region.
Can a single remote employee create a tax nexus?
Yes, employing someone who works from home in another region usually establishes a physical presence, triggering local tax and employment registration duties.
How often should a growing business review its regional tax connections?
You should review your sales and physical footprint by region at least at the end of every quarter to catch thresholds before they become overdue.