E-COMMERCE SALES TAX NEXUS ASSESSMENT CHECKLIST 2026

Created by ChecklistGuro (https://checklistguro.com)


--- NEXUS DETERMINATION & PHYSICAL PRESENCE REVIEW ---
[ ] Physical Presence Triggers Identified (Warehouse/Distribution Center, Office/Administrative Headquarters, Remote Employees/Contractors, Inventory Stored in Third-Party Logistics (3PL), Physical Retail/Pop-up Locations)
[ ] Inventory Location Address
[ ] Total Number of Registered Jurisdictions
[ ] Date of Last Nexus Review
[ ] Lease Agreements or Warehouse Documentation
[ ] Notes on New State Presence or Operational Changes
[ ] Tax Manager Verification

--- ECONOMIC NEXUS & SALES THRESHOLD MONITORING ---
[ ] State/Jurisdiction Name
[ ] Total Gross Sales in Jurisdiction (USD)
[ ] Total Transaction Count
[ ] Nexus Status Identified (Economic Nexus Triggered, No Economic Nexus Detected, Borderline/Monitoring Required)
[ ] Threshold Review Period End Date
[ ] Revenue Report/Sales Ledger Evidence

--- MARKETPLACE FACILITATOR ASSESSMENT ---
[ ] Active Marketplace Platforms (Amazon, eBay, Etsy, Walmart Marketplace, Direct Website (Shopify/BigCommerce), Other)
[ ] Primary Tax Responsibility (Marketplace Facilitator, Merchant (Self-Collection), Split Responsibility)
[ ] Marketplace Transaction ID/Reference
[ ] Last Marketplace Sales Report Review Date
[ ] Marketplace Tax Summary Report
[ ] Discrepancies or Unresolved Marketplace Tax Issues

--- PRODUCT TAXABILITY & CATEGORY MAPPING ---
[ ] Product Categories Identified (Physical Goods, Digital Goods/Software, Services, Subscription-based Products)
[ ] Taxable Product Description
[ ] Taxability Status (Taxable, Exempt, Non-Taxable / Out of Scope)
[ ] Tax Exemption Justification
[ ] Taxability Reference Documentation
[ ] Last Review Date

--- EXEMPTION CERTIFICATE MANAGEMENT ---
[ ] Types of Exemptions Handled (Resale Certificate, Non-Profit/Exempt Organization, Government Agency, Manufacturing/Industrial Exemption)
[ ] Certificate Expiration Date
[ ] Upload Digital Copy of Certificate
[ ] Tax ID / VAT Registration Number
[ ] Verification Status (Pending Review, Verified, Expired/Invalid, Missing Documentation)
[ ] Auditor Verification Signature

--- SOURCING RULES & DESTINATION-BASED TAX VERIFICATION ---
[ ] Primary Sourcing Method Used (Origin-Based Sourcing, Destination-Based Sourcing, Hybrid/Mixed Sourcing)
[ ] Verified Sourcing Factors (Shipping Address Validation, Point of Pickup Verification, In-Store Pickup (BOPIS) Audit, Drop-shipping Origin Verification)
[ ] State/Jurisdiction Under Review
[ ] Tax Rate Applied to Sample Transactions
[ ] Sourcing Logic Documentation
[ ] Compliance Officer Verification

--- SALES TAX SOFTWARE & AUTOMATION AUDIT ---
[ ] Primary E-commerce Platform (Shopify, Magento/Adobe Commerce, WooCommerce, BigCommerce, Amazon Seller Central, Other)
[ ] Tax Automation Tool in Use (Avalara, TaxJar, Vertex, Manual Calculation, Other)
[ ] Automated Features Verified (Real-time Rate Calculation, Automatic Exemption Certificate Validation, Automated Tax Filing, Address Validation/Verification, Automated Transaction Logging)
[ ] Last Software Integration Audit Date
[ ] Integration Log/Error Report
[ ] Identified Discrepancies or Sync Issues
[ ] Compliance Officer Verification

--- RETURNS & REFUNDS TAX RECONCILIATION ---
[ ] Return Period Start Date
[ ] Return Period End Date
[ ] Total Gross Sales Returns Amount
[ ] Total Sales Tax Refunded Amount
[ ] Reconciliation Status (Balanced, Discrepancy Found, Pending Investigation)
[ ] Discrepancy Notes
[ ] Refund Report Evidence
[ ] Reviewer Authorization

--- FILING CALENDAR & REMITTANCE COMPLIANCE ---
[ ] Next Filing Deadline
[ ] Jurisdiction Type (State, County, City, District)
[ ] Total Tax Amount to Remit
[ ] Proof of Remittance
[ ] Filing Status (Not Started, In Progress, Pending Approval, Completed)
[ ] Accountant/Reviewer Approval

--- AUDIT TRAIL & RECORD KEEPING ---
[ ] Audit Period Start Date
[ ] Audit Period End Date
[ ] Types of Documents Retained (Sales Tax Returns, Transaction Logs, Exemption Certificates, Bank Statements, Nexus Study Reports)
[ ] Upload Monthly Tax Summary Report
[ ] Storage Location/Cloud Directory Path
[ ] Compliance Officer Verification

--- END OF TEMPLATE ---
Transform this text into a digital, automated, and trackable mobile app!
Visit: https://checklistguro.com/templates/accounting-management/e-commerce-sales-tax-nexus-assessment-checklist-2026
(Click "Install Template" to launch your digital inspection tool immediately)