Indirect-tax systems market architecture
How enterprise engines, ERP-native products, filing services, VAT platforms, e-invoicing networks, commerce products, and specialist assurance systems divide the market.
Read the research →Research desk
Transaction Systems Research
Original analysis connects market structure, documented capability, authority sources, operating domains, and change history. Every report states what the maintained record can establish and what still requires direct verification.
Provider capability coverage
What current official company records document across the normalized indirect-tax capability model—and what those records do not establish.
Read the research →Mandate-to-workflow crosswalk
A jurisdiction-aware map from selected authority instruments and technical standards to transaction, invoice, reporting, filing, reconciliation, and evidence workflows.
Read the research →