In development
A deterministic tax engine for beverage alcohol: citation-grade, audit-grade, fast.
The Ratify tax engine is being built to compute every applicable tax on every transaction (federal, state, local) for wine, beer, and spirits shipments. It's designed as a rules engine, not an LLM, and every rate it emits will be grounded in the primary source it came from.
Tax surfaces the engine covers
Once the engine ships, every shipment will resolve into a full jurisdiction chain (federal → state → county → city). Each tax component will be computed independently and returned as an itemized breakdown ready for an auditor.
Federal excise
TTB rates by product type, alcohol content, and production volume, including small-producer credits.
State excise
Per-state excise rates that vary by product type and shipped volume.
Sales / use tax
Destination- or origin-based sales tax depending on the state's collection rule; use tax where sales tax doesn't apply.
Local / county surcharges
Additional municipal taxes layered onto the state rate where the destination address falls under a special district.
Design pillars
Deterministic rules engine
No LLM in the hot path. Once shipped, the engine will resolve every request against versioned rate-and-rule tables: the same address producing the same rate every call.
Statute-grade citations on every rate
Every rate the engine emits, when it ships, will carry a citation pinned to the underlying statute, agency guidance, or attested filing, ranked by primary-source authority on the same five-tier scale the assistant uses.
<100ms target latency
Designed for use at order time. The per-state reference pages already render against the same underlying rate data, so once the engine ships, the public pages and order-time checks will draw from one source of truth.
Where this stands
The tax engine is in development. The per-state reference data it will read is live today, and every rate it emits will ship with a citation to its primary source.
The base state sales-tax rate ships corroborated to high confidence wherever ≥2 independent governmental or industry sources agree on the rate. That reference data is live now; the engine that will read it is still in development. Today 29 states clear that bar. See per-state corroboration.
See the data the engine will read.
The 51 per-state pages render against the same registration and rate data. Every claim cites the statute, agency guidance, or filing it came from.
Browse states