Avalara review

Widest jurisdiction and integration coverage, with managed filing in all 50 states.

Verdict

Avalara ranks first because it covers more than 12,000 US tax jurisdictions, offers managed filing (Avalara Returns) in all 50 states, and ships over 1,200 prebuilt integrations, making it the default for sellers on more than one channel.

What customers praise

The library of 1,200+ prebuilt connectors means most companies can turn on accurate tax in their existing NetSuite, Shopify, or Stripe setup without custom development.

What customers criticise

Per-return and per-transaction fees stack up quickly, and users report onboarding and support quality slipping as the company has scaled past 1,000 employees.

Best for

Multi-channel sellers that need calculation and managed filing across every US state plus international VAT, with prebuilt connectors to nearly any billing or commerce system.

At a glance

• Integrations: NetSuite, Shopify, Stripe, Amazon, SAP, QuickBooks
• Compliance: SOC 1 Type II, SOC 2 Type II, GDPR
• Regions served: Global
• Typical onboarding: 30 days

Red flags

Public risk signals as of July 2026: none. No material public risk signals as of 2026-07-09. See the full red-flag report.

Alternatives

See alternatives to Avalara, or compare against the next-ranked entry: Avalara vs Vertex.

Source: Top 11 11 Best Tax Automation Software 2026 (Ranked by Accuracy & Filing), verified July 9, 2026 — no paid placement.