Zamp vs Avalara AvaTax

Zamp9.0Visit Avalara AvaTax8.8Visit

Higher score Zamp #4 in Sales Tax Software 9.0/10 Pricing on request · 30-day trial Free trial✓ 1 of 5 features Visit Zamp

vs

Avalara AvaTax #5 in Sales Tax Software 8.8/10 Paid ✓ 0 of 5 features Visit Avalara

• Zamp fits best

  High-volume businesses needing broad coverage

• Avalara AvaTax fits best

  Broad, multi-state compliance at a published price

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Side by side

Feature	Zamp 9.0/10 Visit ↗	Avalara AvaTax 8.8/10 Visit ↗
At a glance
Editor score	9.0	8.8
Ranking	#4 in Sales Tax Software	#5 in Sales Tax Software
Best for	High-volume businesses needing broad coverage	Broad, multi-state compliance at a published price
Pricing model	Paid	Paid
Starting price	—	$699/unit/yr
Free plan	—	—
Free trial	30 days	—
Deployment	Cloud	Cloud
Platforms	Web	Web
Support	Email, Phone, Docs	Live chat, Docs
Integrations	37+ integrations	1,400+ integrations
Built for	Small business, Mid-market	Small business, Mid-market, Enterprise
Features Zamp 1/5 · Avalara AvaTax 0/5
Tax return filing	Not checked yet	Not checked yet
Nexus monitoring	Not checked yet	Not checked yet
Exemption certificates	Not checked yet	Not checked yet
Tax registration	✓ (best)	Not checked yet
Marketplace support	Not checked yet	Not checked yet
Specs
Jurisdictions covered	13000 jurisdictions (best)	12000 jurisdictions
Our review
Pros	13,000+ U.S. jurisdictions with rooftop-accurate calculations Automates nexus monitoring, registration, filing, and remittance Supports 15 accounting, commerce, marketplace, and billing integrations	Calculates tax in real time across 12,000+ jurisdictions Tracks nexus across all 50 states and validates exemption certificates Connects with major ERP, ecommerce, accounting, and POS systems
Cons	Pricing requires contacting sales Free-tier API access is rate-limited and limited to 30 days Published geographic plans focus on the U.S. and Canada	No free plan is available Pricing is charged per state and varies by revenue, usage, and eligibility Businesses with narrow needs may find its tax coverage broader than necessary
Our verdict	Zamp is a managed sales tax compliance platform for growing digital businesses, including e-commerce, SaaS, and digital services companies. It combines rooftop-accurate calculation, real-time address validation, product-level taxability… Read the review →	Avalara AvaTax is a cloud-based tax determination engine for businesses that need transaction tax calculation across sales and purchasing workflows. It supports sales tax, consumer use tax, VAT, communications tax, occupancy and lodging… Read the review →

Strengths and trade-offs

• Zamp — where it wins

  • 13,000+ U.S. jurisdictions with rooftop-accurate calculations
  • Automates nexus monitoring, registration, filing, and remittance
  • Supports 15 accounting, commerce, marketplace, and billing integrations

  Where it doesn't

  • Pricing requires contacting sales
  • Free-tier API access is rate-limited and limited to 30 days
  • Published geographic plans focus on the U.S. and Canada

• Avalara AvaTax — where it wins

  • Calculates tax in real time across 12,000+ jurisdictions
  • Tracks nexus across all 50 states and validates exemption certificates
  • Connects with major ERP, ecommerce, accounting, and POS systems

  Where it doesn't

  • No free plan is available
  • Pricing is charged per state and varies by revenue, usage, and eligibility
  • Businesses with narrow needs may find its tax coverage broader than necessary

• Zamp9.0/10 · Pricing on request · 30-day trial

  A broad managed tax platform for businesses that need calculation, filing, and nexus coverage.

  Visit ZampFull verdict →
• Avalara AvaTax8.8/10 · Paid

  A broad tax engine with published per-state plans, filing support, and extensive integrations.

  Visit AvalaraFull verdict →