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Prophit.ai Sales Tax Engine

prophit.ai

From $99/mo WebAPI
Visit prophit.ai
Spec score 7.4 #12 of 24 in Sales Tax Software

Spec sheet

Purpose
The engine determines sales tax before a transaction is finalized and returns the result to the system that requested it.Read 8 Oct 2026 · prophit.ai
Integrations
The documented API and file uploads are available, with QuickBooks Online sales activity, Stripe billing, and Workday customer invoices listed as live data connections.Read 8 Oct 2026 · prophit.ai
Address and jurisdiction
It resolves rooftop addresses and maps them to filing jurisdictions using boundary checks against Census geography.Read 8 Oct 2026 · prophit.ai
Company history
Prophit.ai says it was founded in 2019 and has run production tax decisions since 2020.Read 8 Oct 2026 · prophit.ai
Compliance handoff
Committed determinations flow to Sales Tax Compliance at period close for an independent re-check before return preparation.Read 8 Oct 2026 · prophit.ai
Content transparency
The Sales Tax Atlas publishes the engine's content layer, including state guides and local rate pages with official source references.Read 8 Oct 2026 · prophit.ai
Evidence
It retains calculation inputs, resolved jurisdiction, content source, and line-level money math for review.Read 8 Oct 2026 · prophit.ai
Fail-closed controls
Unresolved addresses, ambiguous products, or unknown marketplace responsibility block application instead of prompting a guessed result.Read 8 Oct 2026 · prophit.ai
Integration limits
In-checkout real-time apply for QuickBooks, Workday, and Shopify, and Stripe payments, Connect-marketplace, and settlement profiles are described as in development.Read 8 Oct 2026 · prophit.ai
Tax calculation
It classifies products, exemptions, and separately stated shipping before selecting rates and calculating line-level tax.Read 8 Oct 2026 · prophit.ai
Transaction lifecycle
The engine supports quote, apply, commit, adjustment, refund, and void events tied to the transaction document.Read 8 Oct 2026 · prophit.ai
Who it is for
The page presents the engine for teams connecting checkout, billing, or ERP transaction systems that need real-time sales tax determination.Read 8 Oct 2026 · prophit.ai

Plans and prices

Sales Tax Engine $99 a month Per location; sales-assisted setup; includes 10,000 calculations/month 10,000 calculations/month · no per-state fee Read 8 Oct 2026 · prophit.ai

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