Feather

About Feather

Feather is a retrieval-grounded AI research assistant built specifically for tax professionals, and its entire credibility rests on citation discipline. Every answer is grounded in primary sources — Internal Revenue Code Title 26, Treasury Regulations, Internal Revenue Bulletins, Revenue Rulings, Revenue Procedures, Private Letter Rulings and Written Determinations — with a citation attached to each line rather than a bibliography at the end, which is the difference between something a firm can put in a workpaper binder and something it cannot. Six workflows cover the shape of a tax practice: federal research across Title 26 and the IRBs; state and territory research spanning all 50 states, DC and five US territories; memo drafting in internal, client and executive registers with linked citations; document chat against client files pulled from Google Drive, Dropbox, OneDrive or Box, or uploaded to an encrypted vault called the Safe and routed through a dedicated Feather email inbox; tax planning that combines the knowledge base with client data to surface deductions, credits and elections; and a Monday digest called the Tax Brief covering the week's federal changes. Knowledge bases are updated weekly. The product is explicitly aimed at firms and finance teams rather than individual filers, and the seat price reflects that — this competes with paid research subscriptions, not with consumer tax software.

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