Building the modern standard for sales tax compliance.
We offer an AI-powered managed service for modern businesses—making expert compliance accessible to those who need it most.
$300 M+
sales tax remitted
100K+
filings on-time
75K+
notices handled
200K+
hours saved
Our customers love us.
Consistent 5-star reviews make us the top rated global sales tax platform.
We believe you shouldn't have to understand sales tax to get it right.
The world changed in 2018. The Wayfair decision ended the physical presence requirement for sales tax, pushing enterprise-level complexity onto growing businesses, worldwide.
Businesses found themselves with three terrible options:
Ignore it and risk liabilities worth 5-10% of revenue
Hire consultants who charge enterprise prices
Buy software that still requires you to be a tax expert to operate it
We didn’t set out to build another sales tax tool the world doesn’t need another one. We built Zamp to own the work and the outcome, and we stand behind both — so your team doesn’t have to.
Backed by the best
Zamp is backed by world-class investors who share our vision of solving the sales tax problem for good.
We keep ourselves accountable for your sales tax outcomes
We’re accessible.
Tax issues are time-sensitive. We answer the phone and provide fast, accurate responses so you never feel left waiting.
We strive for excellence.
We are constantly building a world-class product that redefines what SMBs can expect.
We uphold integrity.
Trust is at the core of everything. We safeguard your business with accuracy and honesty.
We appreciate the journey.
The story we write with our team and customers matters as much as the outcomes we achieve.
400 years of tax expertise. At your service.
Whether you sell on marketplaces, your own site, or wholesale channels, we ingest the data, validate the tax, and prepare the filing without you lifting a finger.
The latest from Zamp.
Catch up on our latest announcements, press coverage, and insights.
Zamp launches the operating system of sales tax, globally, with investment from Thomson Reuters ventures
As 75% of U.S. accountants approach retirement, Zamp deploys AI agents alongside tax and legal professionals to deliver better compliance outcomes at every step of…
Zamp raises $30M to scale AI-driven sales tax compliance across 12,000+ jurisdictions
The Supreme Court’s 2018 Wayfair decision forced businesses to track sales tax obligations across more than 12,000 taxing authorities in the U.S. alone, a burden…
Zamp announces global launch of Zamp operating system of sales tax
Zamp today announced the global launch of Zamp OS, the Operating System of Sales Tax. The company has raised $30 million in total funding, with…
Zamp named a major player in two IDC marketscape for tax automation software
Zamp has been named a Major Player in two IDC MarketScape Reports. The company was recognized for its focus on the customer and seamless integration.
Zamp introduces Z‑Tax solution for accountants
End-to-end managed sales tax solution provider Zamp released a “white label” product called Z-Tax, enabling accountants to seamlessly integrate a sales tax compliance solution into…
Zamp targets growing demand for sales tax solutions
Zamp announced a $10 million Series A led by Valor Equity Partners with participation from Venus Williams, Day One Ventures and other investors. In addition…
Ready to run toward hard problems?
Join us to simplify sales tax for businesses everywhere.
