What it sells
AI-driven sales tax compliance across 12,000+ jurisdictions.
Business model breakdown
Buyer: who owns the budget?
UnverifiedFinance leaders (VP Finance, CFO, Chief of Staff or founder) at the customer company; accounting firms also buy for clients.
Trigger: what makes them buy now?
Crossing sales tax nexus thresholds, state notices, or switching away from a prior provider (Zamp says it finds gaps from prior providers in over 80% of companies).
Workflow: what inputs become what output?
Nexus and exposure assessment, state registrations, address-level rate calculation, AI-prepared returns and ACH remittance, daily state-portal monitoring and expert notice resolution.
Economics: what it saves and how it charges
Subscription managed service scoped to footprint, no per-transaction fees; Zamp covers penalties and interest from Zamp-managed errors; claims 200K+ hours saved and $400M+ sales tax remitted.
Distribution: how it reaches customers
Demo-led sales to finance teams plus partner channels (accounting firms, agencies, CFO advisory, software platforms, white-label, referral), integrations with Shopify, Stripe, NetSuite, QuickBooks and others, and a free API sandbox.
Funding history and coverage
| Round date | Stage | Amount | Investors | Source |
|---|---|---|---|---|
| 2026-04-28 | — | $30M | — | news.google.com |
Profiles summarize public reporting and company websites. Business-model notes are MaxBC's reading of that material, not confirmed facts; unknowns are left blank rather than guessed. Updated 2026-10-12.