Numeral vs Zamp
No leader: the top candidate Numeral has only 0.29 confidence (low), below the 0.35 needed to declare a winner. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.
Capabilities
Feature-by-feature on the axes that matter for tax software. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
Numeral
A platform that automates sales tax calculation, registration, filing, and remittance across US and global jurisdictions, plus exemption certificate management and tax notice monitoring.
Zamp
A platform that automates sales tax calculations, registrations, and filings across the US and Canada, backed by dedicated tax experts who manage compliance end-to-end.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
Numeral
Free monitoring. Professional: $75/filing + $150/registration per state. Enterprise and International tiers available; book demo for detailed pricing.
- MonitoringFree
- Connect stores and billing platforms
- Automatic physical and economic nexus monitoring
- Nexus crossing alerts across US jurisdictions
- Historical liability audit
- Professional$75 per filing + $150 per state registration. Month-to-month billing.
- Everything in Monitoring
- State registrations and filings
- Autofile and Autoregister capabilities
- Virtual mailbox for tax mail monitoring
- AI product classification
- +4 more
- EnterpriseContact sales
- Everything in Professional
- Global coverage in 70+ countries
- Tax calculation engine and API access
- Tax lawyer consultation services
- Advanced reporting and analytics
- +4 more
- InternationalFree for first 50 certificates; custom pricing thereafter
- Coverage across US, UK, Canada, EMEA, APAC, and LATAM
- Global registrations and filings
- Automated remittance across jurisdictions
- Global tax expert support
- Rooftop-accurate tax calculations (140ms p95 latency)
- +4 more
Zamp
Free tier with API sandbox and consultation. Paid plans available via custom quote.
- FreeFree
- One-time nexus analysis
- Jurisdiction-by-jurisdiction risk summary
- Product taxability review
- Taxability classification by product/service
- State and country-specific rule application
- +2 more
- U.S.Contact sales
- Rooftop-accurate tax calculations
- Real-time address validation
- Product-specific taxability rules
- Proactive nexus monitoring and registration
- Automated state registrations
- +6 more
- GlobalContact sales
- 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
- +5 more
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
- Shopify
- Stripe
- Amazon
- QuickBooks
- NetSuite
- Rillet
Numeral
- Acumatica
- Microsoft Business Central
- Salesforce
- Tabs
- Orb
- Sequence
Zamp
- WooCommerce
- Chargebee
- Checkout Champ
- eBay
- Etsy
- BigCommerce
- Recurly
- Sage Intacct
- Salesforce Commerce Cloud
- SAP
- Zoho
Numeral or Zamp: which one depends on you
A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.
Free to run, no account needed to start. How the evaluation works
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.