Sales Tax Compliance USA is a U.S.-registered firm specializing in state and multi-state sales tax support for ecommerce businesses. Led by Paul le Roux, a dual-qualified Chartered Accountant (CA(SA), ICAEW), the firm works with U.S.-based and international sellers on platforms including Amazon, Shopify, and Walmart. Its services help businesses understand their tax obligations and manage compliance across U.S. states.

The firm assesses sales data and business activities to identify economic or physical nexus, then supports state registrations and sales tax permit applications. It also assists with sales tax collection setup, prepares and files returns on monthly, quarterly, or annual schedules, and helps manage remittances. Ongoing monitoring covers filing deadlines, sales thresholds, marketplace facilitator laws, and changes in state rules. Sales Tax Compliance USA serves marketplace, remote, FBA, and digital-goods sellers, with attention to state-specific requirements and accurate reporting. Its process begins with a free consultation, followed by a compliance assessment, registration and filing support, and continuing guidance.