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Run Your Nexus Risk Check

Sales tax and use tax exposure checklist

This checklist is designed to help businesses quickly identify sales tax and use tax exposure before filing, registering, or attempting cleanup. It highlights the most common risk signals so exposure can be evaluated deliberately rather than reactively.

Check Your Sales Tax Exposure

Use real data to estimate risk before taking action.

This checklist helps businesses identify potential sales tax and use tax exposure before registering, filing, or attempting remediation. Exposure does not require immediate action, but it does require visibility. It is designed to create clarity and prevent unnecessary or premature compliance actions. You do not need to answer yes to every item for exposure to exist. The checklist highlights areas that typically deserve closer review as businesses grow.

Sales activity

  • Have you sold to customers in more than one state?
  • Has your sales volume increased significantly over time?
  • Do you have customers in states where you are not registered?
  • Have transaction counts increased even when revenue remains moderate?

Growth in activity can trigger obligations even when total revenue appears modest. Sales growth is one of the most common early indicators of exposure, even when systems appear stable.

Nexus triggers

  • Do you have employees, contractors, or offices in more than one state?
  • Do you store inventory in third party warehouses or fulfillment centers?
  • Have you crossed revenue or transaction thresholds in any state based on current or prior year activity?
  • Do you participate in affiliate or referral programs that may create sales tax nexus?

Nexus often exists before businesses realize registration or filing obligations have begun.

Marketplace considerations

  • Do you sell through online marketplaces?
  • Are you unsure whether the marketplace collects tax on your behalf in every state?
  • Have marketplace rules changed since you started selling?
  • Do you rely on marketplace reports without independently verifying your obligations?

Marketplace collection rules reduce friction but rarely eliminate all seller responsibility.

Registration and filing

  • Are you registered in some states but not others?
  • Have you registered but not filed returns consistently?
  • Have you missed required or zero returns after registration?
  • Are you unsure which filing schedules, frequencies, or jurisdictions apply?

Registration without addressing historical periods can unintentionally expand exposure.

Use tax exposure

  • Have vendors failed to charge sales tax on purchases?
  • Do you purchase equipment, software, or services from out of state vendors?
  • Have you reviewed purchase data for use tax exposure?
  • Are use tax obligations tracked manually, inconsistently, or not at all?

Use tax exposure is one of the most common findings during audits and due diligence.

Data and process gaps

  • Do you rely on spreadsheets or disconnected systems to track sales tax and use tax obligations?
  • Is your data spread across multiple systems or formats?
  • Do you lack visibility into when thresholds were crossed?
  • Are tax decisions made reactively rather than based on structured data and thresholds?

Disconnected systems make it difficult to detect when exposure first began.

What your answers mean

If you answered yes to several of these questions, sales tax or use tax exposure may exist, especially for businesses operating across multiple states. Exposure is usually manageable when identified early and prioritized correctly. This does not mean penalties are owed immediately, but it does mean the situation deserves structured review before taking action. Many businesses discover exposure gradually and address it successfully once they understand scope and options.

If you’ve just checked your nexus exposure, take the next step to avoid penalties by registering for sales tax where necessary.

What to do next

Exposure should be identified before filing or registering. A practical compliance decision process looks like this:

Step 1

Identify where exposure may exist

Step 2

Determine when obligations may have started

Step 3

Prioritize jurisdictions by risk and impact

Step 4

Decide whether registration, filing, or remediation is required

Clarity enables confident and defensible compliance decisions.

How TaxMap helps apply this checklist at scale

TaxMap helps you:

TaxMap supports structured, data driven compliance decisions without reactive or unnecessary filings.

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Frequently asked questions

The checklist highlights risk areas, but exposure and compliance decisions should be based on transaction data and jurisdiction specific rules.
No. Exposure does not always mean tax is owed or that immediate action is required.
Yes. Exposure often exists before registration.
Yes. Completing this checklist before filing helps avoid unnecessary or premature action.
Yes. Many businesses use this checklist as a starting point for internal review or advisor discussions before filing.

Most compliance mistakes happen before filing

Identifying exposure first preserves options and reduces unnecessary cost.

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