TAX AUTOMATION & AI PARTNER

End-to-End Tax Automation Solutions

We specialize in the design, build, testing, training, and ongoing support of enterprise-level tax automation solutions. Our approach ensures accuracy, compliance, scalability, and seamless system integration.

Sales & Use Tax

End-to-end implementation and configuration of sales and use tax solutions, ensuring accurate calculation and compliance across all jurisdictions.

GST, HST, PST & VAT

Global indirect tax solutions covering GST, HST, PST, and VAT — configured for multi-jurisdictional compliance and reporting requirements.

Withholding Tax

Overpaid or underpaid withholding taxes due to gaps in tax technology — such as, inconsistent master data, or disconnected ERP processes

Tax AI Models

Design and Build Tax Agents tailored to client specific business processes — built for accuracy, scalability, and seamless integration with your existing solutions.

Certified. Proven. Trusted.

Our team holds industry-recognized certifications on the leading tax engine platforms.

Certified Implementer
VERTEX ®
Certified Implementer
valara

Platforms We Support

Deep expertise across the world's leading ERP platforms — delivering native tax configurations and integrations that work.

W

Workday

  • Tax configurations and implementations
  • Sales and Use Tax
  • Consumer Use Tax
  • Tax Reporting

Microsoft Dynamics 365

  • VAT
  • Sales and Use Tax
  • Consumer Use Tax
  • Tax Reporting
N

NetSuite

  • Sales and Use Tax
  • Consumer Use Tax
  • Tax Reporting

Connect with S1STEX Specialist

Fill out this short form to get started. Once you submit, you can expect the following:

  • We'll review your business and tax technology needs
  • One of our specialists will contact you to discuss tailored solutions
  • You'll receive insights on how S1STEX can streamline and optimize your tax technology landscape

Connect with us now — we're excited to speak with you!