Prophit.ai Sales Tax Engine

What Prophit.ai Sales Tax Engine is

Prophit.ai Sales Tax Engine determines sales tax before a transaction is finalized and returns the result to the requesting system. It is presented for teams connecting checkout, billing, or ERP systems that need tax determinations during transaction processing. The engine resolves rooftop addresses to filing jurisdictions using boundary checks against Census geography, then classifies products, exemptions, and separately stated shipping before selecting rates and calculating tax per line. Its transaction lifecycle covers quote, apply, commit, adjustment, refund, and void events tied to the transaction document. For review, it retains calculation inputs, the resolved jurisdiction, content source, and line-level money math. Unresolved addresses, ambiguous products, or unknown marketplace responsibility block application rather than prompting a guessed result. Committed determinations go to Sales Tax Compliance for an independent re-check at period close before return preparation. API and file uploads are available, alongside live data connections for QuickBooks Online sales activity, Stripe billing, and Workday customer invoices. The Sales Tax Atlas publishes state guides and local rate pages with official source references. The plan costs $99 a month per location and includes 10,000 calculations per month; setup is sales-assisted.