Unsure where you owe sales or use tax
Run Your Nexus Risk CheckSales tax nexus is the point where a business becomes legally obligated to address sales tax and use tax. Nexus often exists before registration, filing, or audit contact due to economic activity, marketplace sales, inventory placement, or operational presence.
Understand nexus and exposure before filing or registering.
Sales tax nexus determines when a business has an obligation to register, collect, and remit sales tax or address use tax exposure in a jurisdiction. Nexus can be created by physical presence or economic activity. For most growing businesses selling across state lines, economic nexus based on state specific thresholds is the primary trigger. Nexus often surfaces sales tax and use tax obligations at the same time. If you want the product view of how this translates to your data, see how TaxMap works. If you want to start immediately, you can Check Your Nexus Risk Now.
Nexus answers whether an obligation exists. It does not determine how or when a business must file.
Nexus is the rule that answers a simple question:
Does this state consider my business present enough to require sales tax or use tax compliance?
You can be required to take action even if you have no office, no employees, and no warehouse in that state. This is why nexus is often discovered late.
Economic nexus frequently creates historical exposure that must be evaluated before filing.
Once nexus is triggered, it can create obligations that may include:
Nexus often reveals sales tax and use tax exposure that accumulated before compliance actions were taken.
I do not have an office there.
Economic nexus can still apply.
I am small, so I am safe.
Even smaller businesses can trigger nexus quickly depending on thresholds, growth rate, and product types.
My marketplace handles everything.
Sometimes it does, sometimes it does not. It depends on the state rules and the nature of your sales.
These assumptions are the most common reasons exposure is discovered late.
TaxMap is designed to identify where these obligations exist and help businesses move toward compliant outcomes with clarity.
TaxMap applies sales tax and use tax nexus rules directly to your transaction data so compliance decisions are based on facts, not assumptions.
TaxMap separates states that require action from those that do not, reducing unnecessary filings.
Understanding nexus is the first step. The next step is mapping sales tax and use tax exposure using your actual data and moving toward compliance. TaxMap maps exposure and supports automated sales tax and use tax compliance. Many mid market and enterprise businesses file through TaxMap. Smaller businesses may file internally, work with a CPA, or use another provider. Filing is never forced. See filing options for a clear breakdown. If you want simple plan details, see pricing.
Identifying exposure before filing preserves voluntary disclosure options and limits penalties.
If you’ve just checked your nexus exposure, take the next step to avoid penalties by registering for sales tax where necessary.
Use tax exposure is often discovered at the same time as sales tax nexus. Review use tax explained. If you are already concerned about historical exposure, review exposure cleanup and remediation guides.