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Demystifying Click-Through Nexus: What Businesses Need to Know

Updated: Jan 31

In the ever-evolving landscape of sales tax regulations, one term that has gained prominence in recent years is "click-through nexus." This concept has significant implications for businesses engaged in e-commerce and affiliate marketing. In this article, we will delve into the world of click-through nexus, explore what it means, and discuss its impact on businesses.

Click-through Nexus has huge implications for businesses engaged in e-commerce and affiliate marketing. In this article, we explore Click-through Nexus and how it affects your business.

Understanding Click-Through Nexus

Click-through nexus, also known as affiliate nexus, refers to the legal requirement for a business to collect and remit sales tax in a state based on its relationship with in-state affiliates or partners. This connection is established when a business engages in an agreement with an affiliate or partner located within a state that drives sales through referrals, links, or online advertising.

Key Components of Click-Through Nexus

To better understand click-through nexus, it's essential to be aware of its key components:

- Affiliate or Partner Agreements: Click-through nexus is triggered when a business enters into agreements with in-state affiliates or partners who promote its products or services through various means, including website links, banners, or advertisements.
- Referral Sales: When customers in the state make purchases by clicking on these affiliate links or advertisements and are redirected to the business's website to complete the transaction, it can trigger click-through nexus.
- Sales Thresholds: Some states have established sales thresholds, either in terms of revenue generated or the number of transactions conducted through affiliate referrals. If a business exceeds these thresholds, it is considered to have a click-through nexus in that state.

Why Does Click-Through Nexus Matter?

Click-through nexus has significant implications for businesses and state tax authorities for several reasons:

- Tax Collection Responsibility: Businesses with click-through nexus are legally obligated to collect and remit sales tax on transactions made by customers referred through in-state affiliates. This can add complexity to their tax compliance efforts.
- State Revenue Generation: Click-through nexus allows states to capture sales tax revenue from out-of-state businesses that benefit from in-state marketing efforts. This can increase the revenue base for the state.
- Affiliate Relationships: Businesses must carefully consider their affiliate agreements to ensure compliance with click-through nexus rules, as well as to determine the financial impact on their affiliate marketing programs.
- Legal Compliance: Failing to adhere to click-through nexus obligations can lead to legal consequences, including penalties and interest charges.

Compliance with Click-Through Nexus

For businesses operating in states with click-through nexus rules, compliance is essential. Here are some steps to ensure compliance:

- Nexus Assessment: Determine whether your business has established click-through nexus in any states by assessing your affiliate relationships and sales generated through affiliate referrals.
- Registration: If you have a click-through nexus in a state, register for sales tax permits in that state.
- Tax Collection: Begin collecting sales tax from customers in that state on transactions driven by affiliate referrals and maintain accurate records.
- Tax Filing: File regular sales tax returns in each state with click-through nexus and remit the collected taxes.
- Stay Informed: Monitor changes in state tax laws and regulations related to click-through nexus, as they can vary from state to state and may evolve over time.


Click-through nexus is a complex and evolving aspect of sales tax regulation that can have significant implications for businesses engaged in e-commerce and affiliate marketing. Understanding the rules and requirements in each state where you operate is crucial for legal compliance and financial management. Businesses should also maintain open communication with affiliates and partners to ensure that their relationships remain in compliance with click-through nexus regulations. If you are offering commission for affiliates to send you business, and are unsure if you have click-through nexus, contact us today or reach out to us by email.

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