AI sales and use tax compliance software

Prophit.ai helps tax and finance teams manage sales tax, use tax, exemption certificates, filing-ready workflows, analytics, and AI-assisted tax review in one modular platform.

Flat pricing per organization: $199/month Starter and $599/month Professional, with no per-state, per-filing, or per-transaction fees — plus a published à-la-carte module menu.
Sales-side and purchasing-side exemption certificate management are included in every plan, or standalone from $49/month per side.
AI-native since 2019: AI reads your documents, classifies every transaction for taxability, validates exemption certificates, and answers questions in-app — checked against published state rules, with a person approving every material decision.
Human review is a designed control: filing-ready outputs are approved by a reviewer, and unresolved facts fail closed instead of being guessed.
Standalone Sales Tax and Use Tax Engines (early access, $99/month per location with 10,000 calls/month included) return determinations to source systems through an API.
The tax content is published and auditable: the Sales Tax Atlas carries 51 state and DC guides and 3,800+ county and city rate pages, each pinned to its official source.
Deliberately US-focused: United States sales and use tax done deeply, rather than global VAT done thinly.