Amazon FBA sales tax compliance: For US LLC founders, it's crucial to understand your sales tax obligations. First, regularly check your Amazon FBA inventory locations, as storing inventory in a state often creates physical presence nexus, requiring you to register for sales tax permits in those states. Second, monitor your sales and transaction volumes across all channels to determine if you meet economic nexus thresholds in various states. Even if Amazon collects sales tax on your marketplace sales, you may still be required to register and file returns. Finally, leverage automation tools and services like Avalara or TaxJar to track nexus, calculate tax, and streamline your filing process. For a comprehensive guide and detailed checklist, visit our full blog post. You can also download our compliance checklist or schedule a consultation with our experts to ensure your business remains compliant.