We build focused software around nexus monitoring, state registrations, connected source data, filing calendars, and recurring filing workflows for ecommerce, SaaS, and accountant teams.
Nexus, registrations, data sources, filing workflows, and calculator infrastructure.
File from CSV, Excel, PDF, or connected commerce and billing data.
Built to reduce portal hopping, spreadsheet drift, and disconnected handoffs.
Teams usually do not struggle because they cannot find a rate table. They struggle because source data, registration status, due dates, approvals, and filings live in too many places.
AtomicTax fits ecommerce sellers, SaaS businesses, finance teams, bookkeepers, and accountant firms that need a cleaner way to manage multi-state tax work.
Use reporting and threshold views to understand which states are active, emerging, or still unresolved.
Registration matters most when it leads directly into due dates, report owners, and recurring return operations.
AtomicTax supports file uploads and connected commerce or billing data so reporting can become repeatable.
Some teams need better registrations. Some need cleaner source data. Some need recurring filing control. AtomicTax is designed to make that workflow visible and manageable.