Developers: Introducing Zamp’s Free API Trial

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Platform Partnerships

Sales tax infrastructure your platform can build on.

A fully managed sales tax engine built for accuracy, scale, and deep integration.

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Supporting high-growth digital businesses on leading platforms

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Why platforms build on Zamp.

End-to-end sales tax infrastructure. 

Real-time calculations, nexus tracking, registrations, filings, remittance, and notices—managed through a single integration.

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Production-grade accuracy.

Jurisdiction-level tax calculations using sourcing rules, product tax codes, exemptions, tax holidays, and registration context.

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Continuously maintained tax content.

Rates, boundaries, and rule changes maintained in-house by Zamp’s content team as regulations evolve.

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Embedded compliance experiences. 

Expose registrations, filings, reports, and compliance status directly inside your platform via API.

Developer-ready from day one. 

Registration status, filing history, reports, and compliance data can be surfaced directly inside your platform via Zamp’s API—delivering a seamless, branded experience for your customers.

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What platform partners get.

API sandbox

Sandbox and production API access for testing, validation, and rollout.

User configuration

 Dedicated technical partner support throughout integration and launch.

Revenue

Shared success partner model with no upfront costs and recurring commissions.

Premium

Early access to new endpoints, features, and expanded compliance coverage.

Certificate

Zamp Certified partner designation for production-ready integrations. 

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Help your customers scale with confidence, together.

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“Zamp has been a great support to our clients exploring the U.S. markets. the team has always been attentive and up for collaboration to explore further growth together.”

Head of Commercial Strategy & Partnerships

SimplyVAT

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