Knowledge base

Resource center.

Public reference material and lightweight utilities stay here. The working workspace stays behind login.

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Data SetCSV / Excel

US Sales Tax Tables (Q1 2026)

Comprehensive rate tables for all US states and local jurisdictions, cleaned for easy import.

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GuidePDF / Notion

The AvaTax Admin Runbook

A step-by-step checklist for office managers who just inherited a complex tax system.

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ToolInteractive

Nexus Threshold Tracker

Keep track of economic nexus limits across different states to avoid surprise liabilities.

Need something custom

If it belongs in the workspace, it should move behind login.

Basic references can stay public. Custom exports, calculators, and operations tools should live in the private product.