From first nexus to multi-jurisdiction complexity, invest in a partner that delivers accurate filings, fewer surprises, and real peace of mind as you scale.
Best for teams who want clarity on tax exposure.
Perfect for teams who need audit-ready compliance while scaling.
Specifically for teams who need enterprise-grade global compliance.
Zamp is the operating system of sales tax for growing businesses. Our plans scale with your needs.
Assess and diagnose
One-time nexus assessment
Product taxability assessment
Historical liability exposure analysis
Expert tax consultation
API sandbox environment
Tax calculation and determination
Rooftop-accurate rate calculation
Real-time address validation
Product-level taxability rules
Exemption & resale certificate logic
Reduced rates & tax holidays
VAT / GST rate calculation
Cross-border product classification
Reverse charge handling
Marketplace & platform rules
Refunds & credit note tax logic
Local currency tax support
Nexus and registrations
Ongoing nexus monitoring
80% early-warning alerts
Automated U.S. state registrations
State account setup & portal linking
International VAT / GST threshold monitoring
Country-specific registration requirements
VAT / GST registration & tax ID management
VAT ID validation & reverse-charge eligibility
Filing and remittance
Return preparation
AI-powered filing submission
Direct ACH remittance
Early-filing discount capture
Filing frequency management
Multi-country VAT / GST filings
Centralized global filing calendar
Audit, notices and risk management
Automated state notice monitoring
AI-assisted notice classification
Expert-led notice resolution
Audit support & representation
Centralized notice & audit archive
International audit support
Reporting, reconciliation and close
Liability reporting by jurisdiction
GL-ready reconciliation reports
Audit-ready transaction history
Multi-entity support
Multi-country reporting
Integrations and platform
ERP and accounting integrations
E-commerce and billing integrations
Real-time data sync
API access (production)
Multi-currency settlement support
Support and ownership
Access to tax professionals
Dedicated account manager
Former auditors
End-to-end compliance ownership
White-glove onboarding
Global tax specialist coverage
Still have questions? Call us at 1-866-438-9267
or email us at support@zamp.com.
Sales tax complexity varies widely by product mix, number of states, entities, and historical exposure. Flat per-state or per-filing pricing often hides risk and leads to add-ons later. Zamp scopes pricing based on your actual footprint and compliance needs so coverage is complete, predictable, and audit-ready from day one.
Sales tax setups differ by business model, jurisdictions, entities, and prior history. A short assessment ensures the right coverage and configuration. In over 80% of companies, we uncover gaps or issues from prior providers that need to be addressed upfront.
You can explore calculations and taxability in the API sandbox. Full platform access is configured around your products, entities, and integrations to ensure accuracy and audit-ready compliance.
Plans are designed by stage of growth, then scoped to your specific nexus, jurisdictions, entities, and systems so compliance scales cleanly and defensibly.
Zamp owns the outcome. Under the Zamp Commitment, if a Zamp-managed calculation or filing results in penalties or interest, Zamp covers the cost. Accuracy, deadlines, and compliance risk are fully backed.
“Zamp’s pricing model allowed me to be confident in the cost I budgeted for sales tax across our portfolio of companies. There have been no surprises.”
Matthew Rehurek
CFO of The Hedgehog Company