Avalara vs Quaderno

Side-by-side from the Top 11 ranking of Avalara vs Vertex vs Thomson Reuters ONESOURCE: 11 Best Tax Automation Software 2026. Last verified July 9, 2026.

The short answer

Avalara ranks higher on Top 11 (#1 vs #10) for Finance and RevOps teams automating sales tax and VAT compliance. Widest jurisdiction and integration coverage, with managed filing in all 50 states.

At a glance

AvalaraQuaderno
Top 11 rank#1 / Avalara vs Vertex vs Thomson Reuters ONESOURCE: 11 Best Tax Automation Software 2026#10 / Avalara vs Vertex vs Thomson Reuters ONESOURCE: 11 Best Tax Automation Software 2026
Score (out of 9.4)9.17.4
Best forBroad multi-channel complianceLightweight tax for digital sellers
Pricing$$$ ($50 to $2,500+/mo plus per-return fees)$ ($49 to $149/mo)
HQSeattle, USALas Palmas, Spain
Founded20042013

Avalara

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

www.avalara.com

See full entry in Avalara vs Vertex vs Thomson Reuters ONESOURCE: 11 Best Tax Automation Software 2026

Quaderno

Affordable tax calculation and VAT receipts for small digital sellers.

www.quaderno.io

See full entry in Avalara vs Vertex vs Thomson Reuters ONESOURCE: 11 Best Tax Automation Software 2026

Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.