# Vatstack vs Zamp

**Leader by Vioscale score:** Vatstack

| Attribute | Vatstack | Zamp |
|---|---|---|
| **Vioscale score** | 71.6 (55% (medium)) | 52.5 (53% (medium)) |
| deployment.options | `{"cloud":true}` | `{"cloud":true}` |
| description.long | Automatically calculates applicable VAT rates for cross-border digital sales, validates customer VAT numbers, stores transaction evidence, and generates compliance reports for VAT and GST filings. | A sales tax compliance system for US and Canadian businesses that automates calculations, filings, registrations, and provides dedicated expert support. |
| features.capabilities | `{"iso_27001":false,"soc2_type_ii":false,"pricing_model":"flat_subscription","erp_netsuite_sap_integration":false,"eu_vat_cross_border_calculation":true,"us_sales_tax_address_validation":false,"digital_goods_software_tax_rules":true,"shopify_stripe_native_integration":true,"real_time_checkout_calculation_api":true,"automated_return_filing_and_payment":true,"economic_nexus_jurisdiction_tracking":false,"exemption_certificate_management_b2b":true}` | `{"pricing_model":"quote","erp_netsuite_sap_integration":true,"eu_vat_cross_border_calculation":false,"us_sales_tax_address_validation":true,"digital_goods_software_tax_rules":true,"shopify_stripe_native_integration":true,"real_time_checkout_calculation_api":true,"automated_return_filing_and_payment":true,"economic_nexus_jurisdiction_tracking":true,"exemption_certificate_management_b2b":true}` |
| integrations.count | 1 | 12 |
| integrations.list | `[{"name":"Stripe"}]` | `[{"name":"NetSuite"},{"name":"Shopify"},{"name":"Stripe"},{"name":"WooCommerce"},{"name":"Amazon"},{"name":"Chargebee"},{"name":"Checkout Champ"},{"name":"eBay"},{"name":"Etsy"},{"name":"BigCommerce"},{"name":"QuickBooks"},{"name":"Rillet"}]` |
| market.availability | `{"primaryMarkets":["GB"],"availabilityScope":"global","availableCountries":["GB"],"notAvailableCountries":[]}` | `{"hqCountry":"US","primaryMarkets":["US","CA"],"availabilityScope":"regional","availableCountries":["US","CA"],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"web":true}` |
| pricing | `{"type":"subscription","plans":[{"free":true,"name":"Developer","summary":"Free forever, no credit card required","features":["Full rates list","EU (27) rates","Digital product rates","Geolocation technology (MaxMind GeoIP2)","Cached quote history (3 days)"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"Free plan for building and testing, includes unlimited dummy validations and supplies","contactSales":false,"includedLimits":{"supplies":"unlimited (dummy)","validations":"unlimited (dummy)"}},{"free":false,"name":"Launch","summary":"$0/mo + usage overages","features":["Unlimited VAT Rates","VAT Validations with overage pricing","VAT Sales tracking","99.95% SLA","EU data center","Event webhooks"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"},{"per":{"qty":1,"unit":"validation"},"kind":"metered","amount":0.09,"currency":"USD"},{"per":{"qty":1,"unit":"sale"},"kind":"metered","amount":0.45,"currency":"USD"}],"description":"Starting point for small businesses","contactSales":false,"includedLimits":{"sales":"20/mo","validations":"100/mo"}},{"free":false,"name":"Small Business","summary":"$15/mo + usage overages","features":["Unlimited VAT Rates","VAT Validations with overage pricing","VAT Sales tracking","99.95% SLA","EU data center","Event webhooks"],"components":[{"kind":"fixed","amount":15,"period":"month","currency":"USD"},{"per":{"qty":1,"unit":"validation"},"kind":"metered","amount":0.03,"currency":"USD"},{"per":{"qty":1,"unit":"sale"},"kind":"metered","amount":0.15,"currency":"USD"}],"description":"For growing digital businesses","contactSales":false,"includedLimits":{"sales":"3,000/mo","validations":"500/mo"}},{"free":false,"name":"Enterprise","summary":"$150/mo + usage overages","features":["Unlimited VAT Rates","VAT Validations with overage pricing","VAT Sales tracking","99.95% SLA","EU data center","Event webhooks"],"components":[{"kind":"fixed","amount":150,"period":"month","currency":"USD"},{"per":{"qty":1,"unit":"validation"},"kind":"metered","amount":0.01,"currency":"USD"},{"per":{"qty":1,"unit":"sale"},"kind":"metered","amount":0.05,"currency":"USD"}],"description":"For large-scale operations","contactSales":false,"includedLimits":{"sales":"3,000/mo","validations":"15,000/mo"}}],"summary":"Free Developer plan; Launch starts at $0/mo; Small Business $15/mo; Enterprise $150/mo, all with usage overages","currency":"USD","freeTier":true,"sourceUrl":"https://vatstack.com/pricing","retrievedAt":"2026-08-24T21:03:32.930Z","startingPrice":{"amount":0,"period":"month","currency":"USD"},"billingPeriods":["month"]}` | `{"type":"hybrid","plans":[{"free":true,"name":"Free","summary":"Free tier with consultation and API sandbox","features":["One-time nexus analysis","Jurisdiction-by-jurisdiction risk summary","Product taxability review","Taxability classification by product/service","State and country-specific rule application","30-minute session with senior sales tax professional","API sandbox access"],"description":"Initial tax exposure assessment and API sandbox access","contactSales":false},{"free":false,"name":"U.S.","summary":"Custom pricing via sales consultation","features":["Rooftop-accurate tax calculations","Real-time address validation","Product-specific taxability rules","Proactive nexus monitoring and registration","Automated state registrations","Ongoing obligation monitoring","AI-powered return preparation and submission","Daily state portal monitoring","Expert response and resolution","Dedicated U.S. tax expertise","Support for complex scenarios"],"contactSales":true},{"free":false,"name":"Global","summary":"Custom pricing via sales consultation","features":["All U.S. plan features","Canada GST/HST/PST/QST calculations","Federal and provincial rate determination","Buyer location validation","Digital vs. physical product tax logic","CAD currency support","Canadian threshold monitoring","Automated GST/HST/PST/QST registrations","Canadian filing and reporting","Cross-border tax expertise"],"contactSales":true}],"summary":"Free tier with API sandbox and consultation. Paid plans available via custom quote.","currency":"USD","freeTier":true,"sourceUrl":"https://zamp.com/pricing","retrievedAt":"2026-08-25T22:12:46.632Z","freeTrialDays":30}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | freemium |
| pricing.price_level | free | low |
| pricing.starting_price | `{"amount":0,"currency":"USD"}` | - |
| pricing.transparent | yes | no |
| reliability.sla_pct | 99.95 | - |
| security.disclosure_policy | - | yes |
| security.gdpr | yes | yes |
| security.soc2 | - | yes |

## Capabilities (Tax Software)

| Capability | Vatstack | Zamp |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Real time checkout calculation API | ✓ | ✓ |
| Economic nexus jurisdiction tracking | ✗ | ✓ |
| Automated return filing and payment | ✓ | ✓ |
| Exemption certificate management B2B | ✓ | ✓ |
| US sales tax address validation | ✗ | ✓ |
| EU vat cross border calculation | ✓ | ✗ |
| Digital goods software tax rules | ✓ | ✓ |
| ERP netsuite sap integration | ✗ | ✓ |
| Shopify stripe native integration | ✓ | ✓ |
| SOC2 type ii | ✗ | - |
| ISO 27001 | ✗ | - |
| Pricing model | Flat subscription | Quote |

*Source: Vioscale. Generated 2026-09-01T16:29:16.738Z. "-" = undocumented, not absent.*