Multi-client calendar
See monthly, quarterly, annual, and custom obligations across the entire firm.
Sales tax software for accountants
Run every client's sales tax workflow from one firm workspace.
AtomicTax helps accountants, bookkeepers, and tax professionals coordinate deadlines, client requests, preparers, reviewers, filing status, and proof across a multi-client book of business.
A shared operating layer
Replace the master spreadsheet with a workflow the whole firm can use.
Each client-state obligation has a filing frequency, owner, due date, request status, review status, and confirmation record.
Client requests
Track missing reports and answers against the correct client, state, and period.
Clear ownership
Assign preparers and reviewers so every filing has an accountable next step.
Review workflow
Move work from waiting to ready, under review, filed, and confirmed.
Deadline resources
Use state due-date guides to support calendar setup and recurring review.
Filing proof
Keep confirmations and operational notes connected to the completed period.
Designed for firms
Built around the questions a manager asks every week.
- Which client filings are due next?
- What is overdue or blocked?
- Which reports are still missing?
- Who owns preparation and review?
- Where is the filing confirmation?
Plan the calendar
Turn state due dates into a repeatable client workflow.
Use the AtomicTax due-date hub to organize monthly and quarterly obligations before they become urgent.