TaxJar

TaxJar automates sales tax compliance for e-commerce sellers, handling tax calculations, multi-state filing, and remittance. The platform connects to Amazon, Shopify, and other sales channels to pull transaction data and determine the correct tax rates based on product categories and customer locations.

Nexus tracking identifies which states a seller has tax obligations based on their sales activity, warehouse locations, and FBA inventory placement. This is particularly important for Amazon FBA sellers whose inventory is distributed across Amazon fulfillment centers in multiple states, potentially creating nexus in states they've never directly sold to.

AutoFile submits tax returns and remits payments to state tax authorities on behalf of sellers, eliminating the need to manually file in every state where nexus exists. For sellers managing sales tax across 20+ states, this automation prevents missed filings and late payment penalties. TaxJar has become the standard solution for Amazon sellers who need to manage the growing complexity of multi-state sales tax compliance.