The AI Tax Assistant. Because close enough AI can cost millions.
Feather is the AI Tax Assistant built for Tax Professionals. Ask any tax question and get answers grounded in the IRC, Treasury Regulations, IRS guidance, and state codes - with audit-ready citations you can actually use.
Grounded in authoritative sources
IRS GuidanceRulings - Procs - PLRs
U.S. CodeTitle 26 - IRC
eCFRTreasury Regs
U.S. Tax CourtOpinionsSOC 2 Type IWeekly tax-code updatesFederal - State - U.S. Territories
What are the requirements for the QSBS exclusion under IRC §1202?
To qualify for the §1202 gain exclusion, the stock must be issued by a domestic C-corporation with aggregate gross assets of $50M or less at issuanceIRC §1202(d), acquired by the taxpayer at original issue§1202(c)(1)(B), and held for more than five years§1202(a).
The issuer must also meet the active business requirement - at least 80% of assets used in a qualified trade or business§1202(e).
Why a dedicated AI Tax Assistant
Why Tax Pros need a dedicated AI Tax Assistant.
ChatGPT, Claude and Gemini hallucinate citations, train on outdated snapshots, and offer no compliance guarantees for client data. Feather grounds every answer in current IRC, Treasury Regulations, IRS guidance, and state codes - retrieving from authoritative knowledge bases and enriching each response with verified citations you can actually defend.
Better sources translate to millions of dollars saved each year through defended deductions, prevented audit exposure, and eliminated manual research. Feather is purpose-built for IRC §7216 compliance and SOC 2 Type I - client data is strictly tenant-isolated and never used to train AI models.
- Hallucinated or invented citations
- Trained on outdated snapshots of the code
- No §7216 guarantees for client data
- Verified citations linked inline to primary law
- Knowledge bases refreshed weekly
- Built for IRC §7216 compliance, SOC 2 Type I
Under the hood
How the AI tax assistant works
Feather runs your question through authoritative, up-to-date knowledge bases and returns answers backed by verified citations.
Query
You ask a tax question in plain language - IRC sections, state nexus, or audit defense.
Retrieve
The agent queries up-to-date knowledge bases - IRC, Treasury Regs, IRS guidance, state codes.
Synthesize
It answers with technical tax reasoning grounded in the retrieved authority.
Enrich
Every answer is enriched with authoritative citations - audit-ready and defensible.
Flag
It proactively flags audit & practitioner considerations - risks, exceptions, and deadlines.
Try it on real work
What can you ask the AI tax assistant?
From IRC code lookups to multi-state nexus analysis, Feather handles the full range of questions professionals face daily. Upload W-2s, 1099s, and statements to work directly with client data.
Projects
One project per client
Each Project maps to a client or matter. Chats, sources, and tax context - entity, year, filing status - stay in one place instead of mixing across engagements.
- Separate chat threads per engagement
- Shared Sources for that client's workpapers
- Instructions you set once, applied to every chat
Integrations
Connect cloud storage
Attach client workpapers from Google Drive, Dropbox, OneDrive, or Box in Chats and Projects. Copy to Safe when you need a permanent record.
IRC §7216 aware · SOC 2 Type I
- Google Drive
- OneDrive
- Dropbox
- Box
Start your first tax question
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