Understanding the Importance of Nexus Analysis for Voluntary Disclosure Agreements on Tax Errors
- kristina324
- Jan 5
- 5 min read
Tax compliance can be a complex challenge for businesses operating across multiple states and local jurisdictions. One of the most common issues companies face involves nexus—the connection between a business and a taxing authority that creates an obligation to collect or pay taxes. When nexus is misunderstood or overlooked, it can lead to unintentional tax errors in both income and sales tax filings. These errors often result in penalties, interest, and audits. Running a thorough nexus analysis helps identify these risks early and opens the door to securing a voluntary disclosure agreement (VDA), which can significantly reduce the financial and legal consequences of past mistakes.
This post explains why conducting a nexus analysis is a critical step for businesses aiming to correct nexus errors and obtain a VDA. We will explore what nexus means, how errors occur, the benefits of a nexus analysis, and how it supports a successful voluntary disclosure process.
Understanding Nexus and Its Impact on Tax Obligations
Nexus refers to the level of connection a business has with a state or local taxing jurisdiction that requires the business to collect and remit taxes. Nexus can be established through various activities, such as:
Having a physical presence like an office, warehouse, or employees
Making sales or providing services in the state
Economic thresholds based on sales volume or transaction counts
Each state, and occasionally locality, has its own rules defining nexus, which can change frequently. This complexity makes it easy for businesses to miss or misinterpret nexus requirements.
When nexus exists but a business fails to comply, it may owe back taxes, penalties, and interest. For example, a company selling products online might not realize that reaching a certain sales threshold in a state creates sales tax nexus, triggering the need to register and collect sales tax. Without proper compliance, the business risks audits and costly assessments.
How Nexus Errors Occur in State and Local Taxes
Nexus errors happen for several reasons:
Rapid business growth or expansion: Entering new markets without reviewing nexus rules
Changes in state laws: States frequently update nexus standards, especially after the 2018 South Dakota v. Wayfair decision on economic nexus
Complex sales channels: Using third-party marketplaces or drop shipping can create unexpected nexus
Lack of centralized tax oversight: Different departments may not communicate nexus-related activities effectively
These errors can affect both income tax and sales tax obligations. For instance, a company might not file income tax returns in a state where it has nexus, or it might fail to collect sales tax on taxable transactions.
Why Running a Nexus Analysis is Beneficial
A nexus analysis is a detailed review of a company’s activities, sales, and presence across jurisdictions to determine where tax obligations exist. Here’s why it is essential:
1. Identifies Past and Current Nexus Exposure
A nexus analysis uncovers where a business has established nexus, even if unintentionally. This includes physical presence, economic thresholds, and other nexus triggers. Knowing this helps companies understand their true tax obligations.
2. Detects Errors Before They Become Problems
By reviewing historical data, a nexus analysis can reveal periods when the business should have been registered or filing returns but was not. Early detection allows companies to address these gaps proactively.
3. Supports Accurate Voluntary Disclosure Agreements
Voluntary disclosure agreements allow businesses to come forward and correct past tax errors with reduced penalties and interest. Tax authorities favor companies that demonstrate good faith efforts to comply. A nexus analysis provides the documentation and clarity needed to negotiate favorable terms.
4. Reduces Risk of Audits and Penalties
States are increasingly using data analytics to identify non-compliant taxpayers. A nexus analysis helps companies avoid surprise audits by ensuring they have met their tax responsibilities or are in the process of correcting errors.
5. Improves Ongoing Compliance
Beyond correcting past mistakes, a nexus analysis establishes a foundation for ongoing compliance. Businesses can implement systems to monitor nexus changes and adjust tax practices accordingly.
How a Nexus Analysis Supports Voluntary Disclosure Agreements
Voluntary disclosure agreements are programs offered by many states and localities that encourage taxpayers to report and pay taxes owed voluntarily. These agreements often provide:
Waivers or reductions of penalties
Limited look-back periods for tax liabilities
Protection from criminal prosecution
To qualify, businesses must show they acted in good faith and are willing to correct errors. A nexus analysis plays a key role in this process by:
Providing a clear picture of where nexus exists and when it was established
Quantifying the tax exposure for each jurisdiction
Demonstrating the company’s commitment to transparency and compliance
Helping prepare accurate disclosures and documentation required by tax authorities
For example, a retailer that discovers it has sales tax nexus in several states due to online sales can use a nexus analysis to file for VDAs in those states. This approach limits the look-back period to a few years instead of facing audits that could go back much further.
Practical Steps for Running a Nexus Analysis
Businesses can follow these steps to conduct an effective nexus analysis:
Gather data: Collect sales records, employee locations, property leases, and other relevant information
Review state and local nexus rules: Understand the specific nexus criteria for each jurisdiction where the business operates or sells
Analyze sales and activities: Compare data against nexus thresholds and physical presence rules
Identify gaps and risks: Highlight where the company may have failed to register or file returns
Document findings: Prepare a detailed report outlining nexus exposure and potential tax liabilities
Plan for voluntary disclosure: Use the analysis to approach tax authorities with a clear correction plan
Real-World Example
A mid-sized e-commerce company expanded rapidly into multiple states but did not fully understand economic nexus rules. After a nexus analysis, the company found it had sales tax nexus in 12 states but was only registered in 5. The analysis revealed unpaid sales tax liabilities dating back three years.
Using this information, the company applied for voluntary disclosure agreements in those states. The agreements reduced penalties by 100% and limited the look-back period to three years instead of the full statute of limitations. The company avoided costly audits and established a compliance program to monitor nexus going forward.
Final Thoughts on Nexus Analysis and Voluntary Disclosure
Running a nexus analysis is a smart, proactive step for any business operating across multiple tax jurisdictions. It uncovers hidden tax obligations, corrects past errors, and positions companies to negotiate voluntary disclosure agreements that minimize penalties and interest.
Ignoring nexus risks can lead to expensive audits and legal troubles. Taking control through a thorough nexus analysis not only protects your business but also builds trust with tax authorities. If you suspect nexus errors or want to prepare for future compliance, start with a detailed nexus analysis today.
Next step: Consult with a tax professional experienced in nexus and voluntary disclosure to guide you through the process and protect your business from unexpected tax liabilities.
Cassone Consulting boasts almost a decade of expertise in nexus studies and voluntary disclosures. Our nexus studies are thorough and detailed, identifying not only where you have nexus but also estimating the liability in each state.
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