Lexium is a professional-grade treaty analysis framework that structures complex cross-border cases into a defensible workflow: facts → rule → treaty articles → judgment — with CPA review controls.
Lexium is designed for complex cross-border profiles where treaty selection, income characterization, and entity structure drive real audit risk.
Standardize treaty reasoning across cases, enforce review, and create a defensible workpaper trail.
Employment, consulting, pensions, and passive income across jurisdictions with reporting exposure.
Entity involvement triggers PE and attribution analysis and often requires CPA review.
Lexium produces deterministic treaty outputs you can defend: controlling articles, exposure testing, and review controls — not generic advice.
Identifies the controlling treaty article and surfaces secondary exposure (PE, business profits, overrides).
High-risk patterns automatically route to CPA review: entities, PE indicators, mixed income, special articles.
Standardized documentation: sanitized facts, rule rationale, draft analysis, and approval attribution.
Handles multiple income types and characterizations in one year without collapsing to a single conclusion.
Cases move through intake → analysis → CPA review → finalized with consistent status discipline.
Lexium is being built toward a standalone professional tool; pilots are available now.
A simple workflow designed to stay consistent under scrutiny.
Capture the facts that materially affect treaty outcomes.
Apply the jurisdiction-specific treaty selector rule.
Primary article + secondary exposure surfaced automatically.
Document the rationale and tested exposure in a standard format.
High-risk cases are reviewed, approved, and finalized with attribution.
Live coverage today. Additional jurisdictions added selectively.
Discuss a cross-border case, a pilot engagement, or the Lexium product roadmap. Book a time that works.