Filed is an AI tax platform for accounting firms. Filed reads source documents — W-2s, 1099s, K-1s, brokerage statements, and prior-year returns — and compares them against the prepared tax return line by line. Filed catches errors that native tax software diagnostics miss, surfaces optimization opportunities, and generates advisory-ready tax plans.

Filed uses document-first architecture. Tax software validates whether the math is internally consistent. Filed validates whether the numbers match the source documents. Filed includes six products: AI Tax Prep, AI Reviewer, AI Tax Planner, Leadsheets, Binders, and Prowork.