Free
Free
Nexus monitoring across all states · Detailed reporting and analytics · CSV transaction imports · Historical liabilities analysis · Comprehensive risk assessment · Address validation
Checked 22 Sep 2026
Plans and prices
Sidr Tax pricing
Plus
$60 a month
Automated filing and remittance · Registration and deregistration · Virtual mailbox for state notices · Rooftop-accurate tax calculations · Automatic tax code classification · Enhanced filing autopilot
Checked 22 Sep 2026
Premium
Not listed
Advanced API access · Dedicated account management · Priority access to sales tax experts · Volume-based discount · Voluntary Disclosure Agreements · Error insurance coverage
Checked 22 Sep 2026