Unsure where you owe sales or use tax
Run Your Nexus Risk CheckEverything you need to calculate, monitor, and manage economic nexus across all states.
Threshold testing. Rolling calculations. Registration readiness. Liability estimates.
Nexus tools help businesses determine when economic or physical nexus has been triggered and what actions are required next.
These tools allow you to:
If you are unfamiliar with nexus fundamentals, review Economic Nexus before using the tools below.
If you need to identify exactly when nexus was triggered:
Calculate the precise month your revenue or transactions exceeded a state threshold.
Apply trailing 12 month calculations for states that use rolling measurement rules.
Review revenue thresholds, transaction rules, and marketplace inclusion by jurisdiction.
For state comparisons, see Economic Nexus by State.
If you sell into multiple states, ongoing tracking is essential.
Automated threshold testing and real time alerts across all states.
Track revenue and transaction thresholds by state in one interface.
Separate marketplace and direct revenue and apply state inclusion rules.
For legal background on facilitator laws, see Marketplace Nexus.
If nexus may have been triggered historically:
Measure overall compliance exposure across jurisdictions.
Estimate back taxes owed from trigger date forward.
Calculate historical exposure including penalties and interest.
For physical presence considerations, see Physical vs Economic Nexus.
If you are unsure whether registration is required:
Determine whether registration is required or overdue.
Generate a structured state by state exposure summary.
View thresholds, trigger dates, and liability exposure in one centralized dashboard.
For timing rules, review When Do I Have to Register for Sales Tax.
Recommended sequence:
Test thresholds using the Nexus Threshold Calculator.
Apply rolling calculations using the Rolling 12 Month Nexus Tracker.
Evaluate risk using the Nexus Risk Score Tool.
Estimate financial exposure using the Sales Tax Liability Estimator.
Confirm registration timing using the Nexus Registration Readiness Tool.
Monitor continuously using Economic Nexus Monitoring Software.
This structured approach prevents late registration and back tax exposure.
Calculate triggers. Evaluate risk. Register with confidence.