Additive is now part of Thomson Reuters
Save significant time without sacrificing accuracy when processing complex Schedule K-1 federal tax forms
Precise AI-powered extraction for your most complex returns
Simplify tax preparation workflows
Additive's generative AI (GenAI) platform simplifies tax processes and streamlines repetitive, time-consuming tasks like ingesting and parsing pass-through entity documents — including Schedule K-1 federal tax forms — during tax preparation workflows.
Advanced technical capabilities
Eliminate manual preparation with a platform that accepts mixed documents in a single .zip file and provides built-in 1065 and 8865 validation and scanned document compatibility across all forms. Unlike legacy-trained tools, this adaptive, Gen-AI native technology quickly adjusts to IRS and state changes.
Superior form and compliance coverage
International and complex case capabilities deliver complete K3s for 1065, 1120S, and 8865, and handles Form 8621, Form 926, and 199A and UBTI footnotes.
Quality assurance and risk management
Flag internal validation errors early and check figures before filing with compliant outputs.
Historical continuity
Ensure historical continuity and audit readiness with support for tax years 2021–2024.
Curious how the unparalleled K-1 support in Additive can transform your workflow? Contact your representative now
Contact a representative
Learn more about Additive, now part of Thomson Reuters
See how the GenAI power of Additive can support your K-1 processing and simplify your tax workflow.