Sales tax built for the pace of technology.
Fully managed sales tax for technology companies—covering subscriptions, usage-based billing, digital products, and remote teams.
Trusted by finance and accounting teams at
Built for how software companies operate.
Subscriptions, global customers, evolving products, and remote teams create constant change. Sales tax needs to keep up—quietly and reliably.
Accurate taxability for SaaS, AI, and digital products.
Your products stay taxed correctly across jurisdictions—even as pricing models, delivery, and services evolve.
Tax calculations built for modern SaaS billing.
Usage-based pricing, mid-cycle plan changes, prorations, credits, and refunds are handled correctly—so tax consistently matches your billing and revenue.
AI-assisted product mapping and transparency.
Product tax rules are continuously validated, with clear explanations for how and why tax is applied.
Automated filings and registrations, globally.
Compliance is managed for you as you expand across states and countries—with visibility and control at every step.
Expert support for high-stakes edge cases.
Direct access to experienced tax professionals, including former state auditors, when scrutiny or complexity arises.
Integrations built for where you sell.
Connect to leading ERP, billing, and e-commerce platforms — and support custom tech stacks via our API.
“People all over the world are buying our product, so it’s good to have somebody who knows what they’re doing.”
FAQs.
Still have questions? Call us at 1-866-438-9267 or email us at support@zamp.com.
No, and that is where the complexity lies. SaaS is taxable in states like Tennessee and Vermont, but exempt in others like Michigan, while states like Colorado have specific home-rule jurisdiction variances. Zamp’s engine manages these rules automatically so you don’t have to track legislative changes.
Yes. In many states, having a single remote developer or sales rep creates “physical nexus,” obligating you to collect tax on sales in that state even if you haven’t hit the economic revenue threshold. Zamp monitors both physical and economic triggers to keep you compliant.
Many SaaS companies sell to non-profits or educational institutions that are tax-exempt. Zamp manages the collection and validation of exemption certificates directly, ensuring you don’t charge tax to exempt customers while maintaining the audit trail you need.
Absolutely. Our integrations with platforms like Stripe and Chargebee are designed to handle the dynamic nature of SaaS billing, including upgrades, downgrades, and metered usage, ensuring tax is calculated correctly on every invoice.
Yes. We regularly help SaaS companies identify historical exposure, clean up compliance gaps, and file back returns to get you current. Where VDAs are needed, we connect you with the right resources. Addressing this proactively is always cheaper than waiting for an audit.