The last sales tax service you'll ever need.
An intelligent platform and tax professionals that handle sales tax globally, from start to finish.
Trusted by thousands of finance and accounting teams.
Our customers say it best.
$400M+sales tax remitted
150K+filings on-time
75K+notices handled
200K+hours saved
The Zamp difference.
A single platform that combines powerful software with expert service.
Accuracy you can trust.
Rooftop-level calculations—down to the exact address. Global coverage wherever you sell.
Rooftop-level calculations—down to the exact address. Global coverage wherever you sell.
A dedicated team that knows how states think about tax, including former auditors and sales tax specialists.
Simple price, no surprises.
Predictable billing with no per-transaction fees or surprise invoices. Registrations, filings, notices, and white-glove support included.
Always ahead.
Changes handled, exposure managed, and notices addressed long before they become your problem.
An intelligent sales tax platform with a managed service built-in.
When tax becomes simple, everything else accelerates.
See how teams are moving faster with Zamp.
Switch to the new standard in sales tax compliance.
FAQ.
Still have questions? Call us at 1-866-438-9267 or email us at support@zamp.com.
What happens if I get a notice from a state?
You send it to us, and we handle it. Both of our service models include end-to-end notice management, where we communicate with the tax authorities and resolve the issue on your behalf. There’s a good chance we will resolve the notice before you get a notification.
What does "rooftop-accurate" actually mean?
It means we determine sales tax based on the precise building address of your customer using geospatial coordinates, not just a general ZIP code. This is the highest level of accuracy available and protects you from over or under-collecting tax.
How easy is it to switch to Zamp?
Our white-glove onboarding makes switching painless. A dedicated specialist will handle your data migration, account setup, and any existing state registrations to ensure a seamless transition from day one.
How is Zamp different from tools like Avalara or TaxJar?
Most tools are “Do-It-Yourself,” meaning you are still responsible for setup, monitoring, and troubleshooting. Zamp is a “Done-For-You” service. We combine our powerful technology with a dedicated team of experts to manage the entire process for you, providing both a platform and a partner.
Who is Zamp best for?
Zamp is designed for growing small-to-mid-size digital businesses (e-commerce, SaaS, digital services) that need a reliable, expert-led solution for their increasingly complex sales tax obligations.