Ecommerce Solution

Sales tax software built for ecommerce teams selling across channels.

AtomicTax helps ecommerce operators connect storefront and marketplace data, monitor nexus, manage registrations, and keep recurring state filings under control.

Marketplace Complexity

Separate facilitator activity from direct filing obligations.

Amazon, Walmart, TikTok Shop, and other channels shift collection responsibility, but they do not remove the need for clear registration and filing workflows.

Nexus Movement

Monitor thresholds as promotions, wholesale, and new states change the map.

Economic nexus is rarely static for fast-growing ecommerce brands. We keep the state footprint visible before it becomes a notice problem.

Recurring Operations

Turn multi-state filing into a controlled operating process.

Instead of rebuilding the filing workflow every month, your team gets a repeatable system for data intake, reconciliation, and return prep.

What AtomicTax Covers

Core workflows for online sellers.

  • Nexus monitoring and state exposure review
  • Registration workflow support
  • Marketplace and DTC data normalization
  • Connected-source reporting inputs with export fallback when needed
  • State-by-state filing and return workflow support
Why Teams Buy

Less manual tax work between operations and finance.

Ecommerce teams do not need another general ledger project or another tax portal maze. They need a system that turns channel data into clean filing workflows and keeps state obligations from getting lost.