Changelog

History of rule updates, corrections, and new state coverage. We verify all rules quarterly and update immediately when states issue new guidance.

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December 2025

Initial Launch

Added
Launched with 10 verified states: Texas, California, New York, Washington, Pennsylvania, Illinois, Massachusetts, Florida, Colorado, and Georgia.
Added
Economic nexus threshold tracking for all covered states.
Added
SaaS taxability determinations with B2B exemption details.
Added
Physical presence nexus trigger analysis.
Added
Source citations for every rule determination.

We're working on adding the remaining 40 states. Priority order is based on economic significance and SaaS-specific complexity:

Q1 2026:
NJ, OH, NC, VA, AZ

Q2 2026:
MI, TN, MN, WI, CT

Q3 2026:
MD, IN, SC, MO, UT

Q4 2026:
Remaining states

Found an error or have a correction? Email us — we investigate and update within 48 hours.