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AskTax
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Why EY?
From source verification to EY professional review
EY is rolling out Ask EY Tax across its global tax organization, with US firm-wide deployment in June 2026.
Global Tax Analyzer applies the same operating principles to Korean tax,
checking answer support against official sources and connecting the review to EY professionals when needed.
One platform · five components
Front DoorTax research chat
Enter an issue and the platform directly searches statutes, administrative interpretations, Tax Tribunal decisions and cases to prepare a review. A person asks; the whole platform moves.
Digital WorkforceAI agents
R&D documentation automation · legislative history · DART company analysis · tax diagnostics/audit defense — agents handle repeatable work end-to-end alongside chat.
Knowledge CoreVerifiable knowledge sources
Directly queries MOLEG statutes and histories, NTS rulings, Tax Tribunal decisions, court cases and National Assembly bill data in real time.
Adversarial ReviewCitation-source verification
Citations that can be checked against official sources are compared with the originals; unsupported references are removed or marked unverified.
Expert in the LoopEY professional review
When needed, the platform drafts an inquiry to an EY professional from the review. Final conclusions are confirmed through professional review.
How it differs from general AI
Public AI model alone
- Amended statutes and new cases after training require separate research
- Cited sources still need a separate original-text check
- Access and retention policies for work materials require separate configuration
- Outputs are not automatically connected to a professional review process
Global Tax Analyzer
- Queries current statutes and tribunal decisions from official data
- Checks verifiable citations against originals and shows verification status
- Handles materials within approved users and work scope
- Connects to EY tax professional review and inquiry when needed
Architecture that builds trust
Data boundaryUploaded materials are used only for the review and deleted after the retention period. They are not used for model training.
Role-based accessAuthentication and permissions are checked per request; upload and administration are limited to approved roles.
Fail-closed verificationSupport that cannot be verified is removed or marked for direct original-text review.
Model-neutral routingThe gateway is not tied to a single model and can adopt better models as they become available.
EY global program: Ask EY Tax — Frontier-powered, EY-governed.
Korean implementation: Global Tax Analyzer — official data from MOLEG, NTS, the Tax Tribunal and National Assembly, with citation-source verification.
AI-generated output is for reference; EY expert review is recommended before final decision-making.