Zamp

Visit site Alternatives

Score8.6

Rank#2 of 108

PriceFree

Free planYes

Runs onAPI

Summary

Zamp is a sales tax service with API access, automated filing, return preparation, submission, and direct ACH remittance. It supports sales tax, GST, HST, PST, and QST, and lists tax registration, calculation, and filing. Its managed service can handle registrations, filings, notices, and support, with customers choosing done-for-you or done-with-you handling. The free tier includes nexus assessment, taxability review, expert consultation, and access to an API sandbox. That sandbox is a production-grade, rate-limited trial lasting 30 days and cleans up automatically; it is preloaded with remote-seller state registrations. Zamp says billing has no per-transaction fees or surprise invoices. Integrations include Adobe Commerce, BigCommerce, NetSuite, Shopify, Stripe, WooCommerce, and Xero. The service also lists multi-entity support, dedicated account management, and a central dashboard. Pricing is on request, and the listed U.S. and U.S. + Canada plans have no prices provided. Zamp is headquartered in Miami, Florida, United States.

Who it is for

Zamp may suit teams seeking managed sales tax registration, calculation, filing, and notice handling. Its free assessment and time-limited API sandbox may help teams review tax exposure and explore API access.

What is good

Free tier includes nexus assessment and expert consultation.
Supports sales tax and listed GST, HST, PST, QST.
Automates filing and direct ACH remittance.
Offers done-for-you or done-with-you service.
Lists integrations with commerce and accounting platforms.

What to know first

Pricing is on request.
API sandbox lasts 30 days and is rate-limited.
SOC 2 compliance is in progress.

Verdict

Zamp covers sales tax calculations, registration, filing, remittance, and notice management, with managed-service options. Teams should note that pricing is on request and the API sandbox is limited to 30 days.

Zamp plans and pricing

All plans

Free Free 30-day sandbox zamp.com · 28 Sept 2026

U.S. Not published Rooftop-accurate tax calculations · Nexus monitoring and registration · Automated filing and remittance · Notice management · Dedicated U.S. tax expertise zamp.com · 28 Sept 2026

U.S. + Canada Not published U.S. plan features · Canadian GST/HST/PST/QST calculations · Canadian registrations · Canadian filing and reporting · Cross-border tax expertise zamp.com · 28 Sept 2026

Assess and diagnose Not published One-time nexus assessment · Product taxability assessment · Historical liability exposure analysis · Expert tax consultation · API sandbox environment zamp.com · 20 Sept 2026

Compared on tax compliance software

Free plan: Nozamp.com
Jurisdictions covered: 13,000 jurisdictionszamp.com
Tax registration: Yeszamp.com

Facts

Free plan: Nodeveloper.zamp.com · 20 Sept 2026
Jurisdictions covered: 13000developer.zamp.com · 20 Sept 2026
Supported tax types: Sales tax; GST; HST; PST; QSTdeveloper.zamp.com · 20 Sept 2026
Return filing: Yesdeveloper.zamp.com · 20 Sept 2026
Filing support level: automateddeveloper.zamp.com · 20 Sept 2026
Sales tax calculation: Yesdeveloper.zamp.com · 20 Sept 2026
Tax registration: Yesdeveloper.zamp.com · 20 Sept 2026
API access: Yesdeveloper.zamp.com · 20 Sept 2026
Pricing model: Pricing is scoped to each company’s footprint and compliance needs.zamp.com · 28 Sept 2026
Free tier: Includes nexus assessment, taxability review, expert consultation, and API sandbox access.zamp.com · 28 Sept 2026
Free API trial: The API sandbox is production-grade, rate-limited, lasts 30 days, and cleans up automatically.zamp.com · 28 Sept 2026
Trial limits: The sandbox is preloaded with remote-seller state registrations and is rate-limited.zamp.com · 28 Sept 2026
Billing fees: Billing is predictable with no per-transaction fees or surprise invoices.zamp.com · 28 Sept 2026
Managed service: Zamp handles registrations, filings, notices, and support for customers.zamp.com · 28 Sept 2026
Service models: Customers can choose done-for-you or done-with-you sales tax handling.zamp.com · 28 Sept 2026
Platforms and apps: Integrations include Adobe Commerce, BigCommerce, NetSuite, Shopify, Stripe, WooCommerce, and Xero.zamp.com · 28 Sept 2026
API access: Production API access is included in the plan comparison, with a free API sandbox available.zamp.com · 28 Sept 2026
Tax accuracy: Calculations use the customer’s precise building address and geospatial coordinates.zamp.com · 28 Sept 2026
Filing and remittance: The service includes automated filing, return preparation, submission, and direct ACH remittance.zamp.com · 28 Sept 2026
Notice management: Zamp monitors state portals, classifies notices, responds, resolves issues, and archives notices.zamp.com · 28 Sept 2026
Certification status: AICPA SOC 2 compliance is in progress.zamp.com · 28 Sept 2026
Teams and administration: Features include multi-entity support, dedicated account management, and a centralized dashboard.zamp.com · 28 Sept 2026
Support expertise: Support includes tax professionals, former auditors, and senior tax specialists.zamp.com · 28 Sept 2026
Customer scale: More than 1,200 finance and accounting teams have saved thousands of hours with Zamp.zamp.com · 28 Sept 2026
Company location: Zamp Inc. lists an address in Miami, Florida.zamp.com · 28 Sept 2026