Skip to main content
Skip to main content
NexusMonitor

Terms of Service

Last updated: February 17, 2026

1. Agreement to Terms

By accessing or using NexusMonitor ("Service"), operated by NexusMonitor ("we," "us," or "our"), you agree to be bound by these Terms of Service ("Terms"). If you do not agree to these Terms, you may not access or use the Service.

These Terms apply to all visitors, users, and others who access or use the Service. By creating an account, you represent that you are at least 18 years old and have the legal capacity to enter into a binding agreement.

2. Description of Service

NexusMonitor is a sales tax nexus threshold monitoring platform for e-commerce sellers. The Service connects to your sales platforms (including Shopify, WooCommerce, and Square), aggregates sales data by U.S. state, compares your activity against each state's economic nexus thresholds, and sends alerts when you are approaching or have exceeded a threshold.

The Service includes: nexus status dashboards, threshold alert notifications, platform integrations, blog content about sales tax nexus, and AI-powered features.

AI-Powered Features: The Service uses artificial intelligence (powered by Anthropic's Claude) for the following purposes:

  • Support chatbot: An AI assistant in your dashboard answers common questions about sales tax nexus and the Service.
  • Contact form responses: Incoming inquiries may receive an AI-generated initial response before human review.
  • Compliance monitoring: AI is used to classify potential nexus rule changes detected from public government sources.
  • Blog content: Educational articles may be generated with AI assistance and reviewed for accuracy before publication.

AI-generated responses are provided for informational purposes only and are not a substitute for professional tax or legal advice. See our Privacy Policy for details on how your data is processed by AI systems.

3. Important Disclaimer — Not Tax Advice

NexusMonitor is an informational monitoring tool only. The Service does not constitute tax advice, legal advice, or professional advice of any kind.

The information provided by NexusMonitor, including nexus status calculations, threshold alerts, blog articles, and AI chatbot responses, is provided for informational purposes only. You should always consult with a qualified tax professional or CPA regarding your specific tax obligations, registration requirements, and compliance decisions.

We make reasonable efforts to keep nexus threshold data accurate and up to date, but state tax laws change frequently. We do not guarantee the accuracy, completeness, or timeliness of any information provided through the Service. Specific limitations include:

  • Nexus thresholds may change without notice. Our compliance monitoring checks state websites daily, but delays of 24-48 hours are possible.
  • Your calculation is only as accurate as your connected sales data. If you sell on multiple platforms, connect all of them for a complete picture.
  • AI-generated content (chatbot responses, compliance alerts, blog articles) may contain errors. Never rely solely on AI output for tax or compliance decisions.
  • You are solely responsible for registering for sales tax in any state where you have nexus.

4. Account Registration

To use the Service, you must create an account by providing a valid email address and password. You are responsible for:

  • Maintaining the confidentiality of your account credentials
  • All activity that occurs under your account
  • Notifying us immediately of any unauthorized use of your account
  • Providing accurate and complete information during registration

We reserve the right to suspend or terminate accounts that violate these Terms or that we reasonably believe are being used fraudulently.

5. Subscription Plans and Billing

NexusMonitor offers subscription plans with different feature tiers. Pricing and features for each plan are displayed on our pricing page and may be updated from time to time.

  • Free trial: New accounts receive a 14-day free trial of Growth plan features. No credit card is required. At the end of the trial, your account is automatically downgraded to the free tier. You will not be charged unless you voluntarily subscribe to a paid plan.
  • Billing cycle: Subscriptions are billed monthly or annually (at a discounted rate). Your billing cycle begins on the date you subscribe to a paid plan.
  • Payment: Payments are processed securely through Stripe. By subscribing, you authorize us to charge your payment method on a recurring basis.
  • Cancellation: You may cancel your subscription at any time through the billing management page. Upon cancellation, your subscription remains active until the end of the current billing period.
  • Refunds: We do not offer automatic refunds for partial billing periods. If you cancel, you retain access through the end of your paid period. Refund requests are reviewed on a case-by-case basis. Prorated refunds may be issued at our discretion for service issues or mid-cycle plan changes. Abuse of the refund process, including repeated refund requests or filing chargebacks without first contacting support, may result in account termination.
  • Price changes: We may change subscription prices with at least 30 days' notice. Existing subscribers will be notified via email before any price increase takes effect.

6. Platform Integrations

The Service connects to third-party e-commerce platforms (including Shopify, WooCommerce, and Square) through their official APIs. By connecting a platform:

  • You authorize NexusMonitor to access your sales order data for the purpose of calculating nexus thresholds
  • You represent that you have the authority to grant this access
  • You understand that we aggregate sales data by state and month — we do not store individual order details or customer information
  • You may disconnect a platform at any time through your account settings

We are not responsible for changes to third-party platform APIs, downtime, or data accuracy issues originating from connected platforms.

7. Acceptable Use

You agree not to:

  • Use the Service for any unlawful purpose or in violation of any applicable law
  • Attempt to gain unauthorized access to any part of the Service or its systems
  • Use automated scripts, bots, or scrapers to access the Service (except through our official APIs)
  • Interfere with or disrupt the integrity or performance of the Service
  • Share your account credentials with others or allow multiple people to use a single account
  • Reverse engineer, decompile, or disassemble any part of the Service
  • Use the Service to transmit malware, spam, or other harmful content

8. Intellectual Property

The Service and its original content (excluding content provided by users), features, and functionality are and will remain the exclusive property of NexusMonitor. The Service is protected by copyright, trademark, and other laws. Our trademarks and trade dress may not be used in connection with any product or service without our prior written consent.

You retain ownership of any data you provide to the Service. By using the Service, you grant us a limited license to use your data solely for the purpose of providing and improving the Service.

9. Limitation of Liability

To the maximum extent permitted by applicable law, NexusMonitor and its operators, employees, and affiliates shall not be liable for any indirect, incidental, special, consequential, or punitive damages, including but not limited to:

  • Loss of profits, data, or business opportunities
  • Tax penalties, interest, or assessments resulting from reliance on the Service
  • Failure to register for sales tax in a state where registration was required
  • Inaccurate or outdated threshold information
  • Errors or omissions in AI-generated chatbot responses, contact form responses, compliance alerts, or blog content
  • Missed or delayed compliance alerts, including AI-detected rule changes that were not manually verified
  • Service interruptions, downtime, or data loss

Our total aggregate liability to you for any claims arising from or related to the Service shall not exceed the amount you paid to us in the twelve (12) months preceding the claim.

10. Disclaimer of Warranties

The Service is provided on an "AS IS" and "AS AVAILABLE" basis without warranties of any kind, either express or implied, including but not limited to implied warranties of merchantability, fitness for a particular purpose, non-infringement, or course of performance.

We do not warrant that (a) the Service will function uninterrupted, secure, or available at any particular time or location; (b) any errors or defects will be corrected; (c) the results obtained from using the Service will be accurate or reliable; or (d) the quality of the Service will meet your expectations.

11. Termination

We may terminate or suspend your account immediately, without prior notice or liability, for any reason, including if you breach these Terms. Upon termination:

  • Your right to use the Service will immediately cease
  • We may delete your account data after a reasonable retention period (30 days)
  • You may export your data at any time via Settings in your dashboard, or by contacting support

You may terminate your account at any time by using the "Delete Account" option in your account settings, or by contacting us. Account deletion permanently removes all your data from our systems within 30 days.

12. Changes to Terms

We reserve the right to modify or replace these Terms at any time. If a revision is material, we will provide at least 30 days' notice prior to any new terms taking effect, via email to your registered account. What constitutes a material change will be determined at our sole discretion.

By continuing to access or use the Service after those revisions become effective, you agree to be bound by the revised terms.

13. Governing Law

These Terms shall be governed by and construed in accordance with the laws of the State of Delaware, without regard to conflict of law provisions. Any disputes arising from these Terms or the Service shall be resolved through binding arbitration in accordance with the American Arbitration Association Consumer Arbitration Rules.

  • Venue: Arbitration shall be conducted virtually or in Wilmington, Delaware.
  • Fees: For claims under $10,000, NexusMonitor will pay all arbitration filing and administration fees. For larger claims, costs shall be allocated per the AAA rules.
  • Small claims: Either party may bring an action in small claims court as an alternative to arbitration.
  • Injunctive relief: Either party may seek injunctive or other equitable relief in a court of competent jurisdiction to prevent the actual or threatened infringement of intellectual property rights.

14. Contact Us

If you have any questions about these Terms, please contact us: