Zamp Nets $30m to Scale Its Sales Tax OS Platform

Why It Matters

The infusion of $30 million accelerates Zamp’s push to become the de‑facto infrastructure layer for global sales‑tax compliance, giving enterprises and accounting firms a single, AI‑enhanced solution that reduces error risk and scales across borders.

Key Takeaways

• Zamp raised $30 million led by Acrew Capital.
• Funding will expand accounting‑firm channel and international footprint.
• Platform now supports 100,000 returns with 99.97% accuracy.
• Over 120 accounting firms use Zamp; partner retention exceeds 98%.
• New certificate‑management product slated for release this year.

Pulse Analysis

Sales‑tax compliance remains one of the most fragmented regulatory challenges for businesses, with over 10,000 jurisdictional rules in the United States alone and a growing web of obligations abroad. Companies increasingly seek a unified, technology‑driven approach that can automate registrations, filings, and notice handling while staying current with rule changes. In this environment, platforms that act as an operating system—centralizing data, workflows, and integrations—are gaining traction as a strategic alternative to piecemeal point solutions.

Zamp’s platform differentiates itself by combining AI agents with a network of vetted tax and legal professionals, offering end‑to‑end coverage from data normalization to filing guarantees. The system is accessible via a dashboard, robust API, or white‑label integration, allowing accounting firms to embed compliance data directly into their own tools through a private beta MCP. With more than $400 million in sales‑tax filed, 100,000 timely returns at 99.97% accuracy, and a partner retention rate above 98%, Zamp demonstrates both operational reliability and strong market adoption among firms such as Withum and Frank Rimerman.

The $30 million round provides the runway to scale Zamp’s accounting‑firm channel, launch a certificate‑management module, and enter key international markets including the EU, Australia, New Zealand, and the UK. By targeting the world’s top 25 accounting firms, Zamp aims to embed its OS deeper into the professional services ecosystem, creating network effects that could lock in a sizable share of the global sales‑tax compliance market. Competitors will need comparable AI capabilities and risk‑backed guarantees to keep pace, making Zamp’s funding a bellwether for the next wave of RegTech consolidation.