Sales Tax Automation Estimate
The leading tax service providers of sales tax services for Microsoft Dynamics BC/NAV are Vertex, Avalara and Sure Tax (Wolters Kluwer).
Acumens e-Tax Extension/Addon supports TaxJar and Zamp, which offer the same services.
However, Zamp and TaxJar are between 50% and 70% cheaper to implement and subscribe to.
TaxJar and Zamp provide updated sales tax rates for all US states as well as filing services for sales tax returns.