1
Connect source data
Bring in ecommerce, marketplace, billing, and API-based inputs from the systems your team already uses. File uploads remain available when needed.
How It Works
Connect. Monitor. File.
AtomicTax is built for businesses that need a software-backed sales tax workflow across data inputs, nexus movement, registrations, and recurring multi-state filings.
2
Review nexus and state scope
See where exposure is changing and which states need monitoring, registration, or filing action.
3
Set up registration workflow
Activate the states that need live accounts, filing cadence, and operational ownership.
4
Build the filing calendar
Track periods, due dates, approval steps, and which filings are queued or in progress.
5
Normalize the reporting inputs
Map exports, connected-source data, and state-specific requirements into a cleaner filing workflow.
6
Review return workflows
Keep visibility into gross sales, taxable sales, marketplace treatment, remittance steps, and approval status.
7
Manage recurring filings
Run the monthly or quarterly state filing process with less manual handoff between finance and operations.
8
Keep the system current
As new states, products, or channels are added, AtomicTax keeps the tax workflow connected rather than fragmented.
What happens after setup
- State obligations stay visible in one place
- Connected data sources reduce monthly cleanup
- Registrations and filings stay tied to the same operating system
What AtomicTax is not
- Not just a one-off rate calculator
- Not built around one-off file uploads
- Not a generic enterprise tax suite
- It is a focused sales tax workflow for ecommerce and SaaS teams