Askfeather.ai
Professional Class AI Tax Assistant
Details
- External ID
- 46875998
- Source
- HN
- Company
- —
- Product
- Askfeather.ai
- Website domain
- askfeather.ai
- Launched
- Feb. 3, 2026
- Cohort
- —
- Upvotes
- 7
- Upvotes percentile
- 0.38207547169811323
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Description
Hi HN,We’re the team at Feather Labs, and we built Feather (https://askfeather.ai), an AI tax assistant designed to assist how professionals handle modern Tax research.General LLMs are a liability for tax work because they lack a hierarchical understanding of the law. They often conflate IRC Title 26 with non-authoritative blog posts or outdated Treasury Regulations. We built Feather to move past "plausible" prose toward audit-defensible reasoning.The Technical Challenge: Standard RAG often chokes on the tax code for a few specific reasons:1. Hierarchical Fragmentation: Simple character-count chunking breaks the logical nesting of tax law; we implemented a strategy to preserve the relationship between code sections, sub-clauses, and court cases.2. Temporal Decay: A vector search might pull a 2021 Revenue Ruling that was superseded in 2024; our indexing prioritizes versioning and the latest IRS guidance.3. Contextual Overlap: The tax code is highly repetitive. We use multi-jurisdictional analysis to distinguish between federal and state-level nuances that appear semantically similar but are legally distinct.The Build:1. Audit-Ready Citations: Every answer is grounded in primary sources—IRC Title 26, Treasury Regs, and IRS guidance, providing verified references you can actually defend.2. Context-Aware Intelligence: Beyond answering queries, the system flags related risks, exceptions, and filing deadlines that practitioners might overlook.3. Compliance: We are SOC 2 compliant with a strict zero-training policy on sensitive client data.We’re curious to hear from anyone else building RAG for "dense" domains where "close enough" results are not enough. We'll be in the comments to talk about our indexing strategy and how we handle complex document extraction.Sokratis
Enrichment
- Theme
- AI agents for business operations
- Vertical
- Fintech
- Function
- Agent / copilot
- Audience
- B2C
- AI stance
- AI-native
- Project type
- Commercial product
- Normalized one-liner
- ai tax assistant
- Manually corrected
- False
Could you build this?
Partial A tax chat interface with basic RAG can be built quickly, but an audit-grade AI assistant requires an extensive, continually updated legal graph spanning federal and state tax statutes.
What it would actually take: The production architecture requires a hybrid RAG pipeline connecting structured knowledge graphs (representing IRC Title 26 hierarchy, Treasury Regulations, IRS Bulletins, and 50 state tax codes) with high-accuracy retrieval models and strict verification guardrails. The hard part is building legal citation verification algorithms that resolve statutory precedence, track effective dates, and eliminate hallucinations in audit-critical calculations. This demands specialized tax attorneys, legal knowledge engineers, and high-precision RAG pipeline specialists.
Discussion
No comments on this launch.
Competitors
Other products that read as similar to this one — 66 launches clear the similarity bar, closest 8 shown.
Attention rank: #45 of 67 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 97 days after the earliest competitor.
- Luca IQ - An API for U.S. tax calculation and e-filing · yc · 2026-07-31 · 4 upvotes · similarity 0.51
- Tin Validate, a tax ID validator that explains why checks pass or fail · hn · 2026-06-20 · 5 upvotes · similarity 0.43
- Jupid · ph · 2026-03-31 · 664 upvotes · similarity 0.42
- Vergino AI · ph · 2026-09-22 · 1 upvotes · similarity 0.42
- I automated forensic accounting for divorce cases (3 min vs. 4 weeks) · hn · 2025-12-22 · 6 upvotes · similarity 0.41
- AI·rete·RAG · hn · 2026-09-22 · 44 upvotes · similarity 0.41
- Valim Tax · ph · 2026-09-23 · 2 upvotes · similarity 0.40
- Combinely - AI coworker for tax teams · yc · 2025-11-24 · 10 upvotes · similarity 0.40
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a agent / copilot tool for Agriculture yet.