Luca IQ
Last updated: 9/4/2026
Luca IQ
Luca IQ is a modern tax engine and software platform for accounting firms, tax professionals, and developers. At its core is an API-first tax engine that supports tax calculation, preparation, validation, and e-filing, with an integrated workflow layer for everything that happens around the return.
The platform includes client intake, document collection and smart questionnaires, workpapers, review, e-signatures, and delivery. Every field is traceable to its source document, workflows are designed for human review, and U.S.-based CPA support helps firms operate reliably through busy season.