Get Tax Right at the Source, Before Errors Create Downstream Risk
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Explore Our Tax Engine, Vertex O Series
See how organizations are improving tax accuracy through data validation, centralized tax determination, and automated tax processes with our tax engine, O Series.
Why Leading Organizations Choose Vertex O Series for Tax Determination
Tax errors are often discovered downstream but originate much earlier. Our tax engine, Vertex O Series, helps organizations reduce risk by validating inputs, automating tax determination, and centralizing tax logic across systems—so tax can be determined accurately before errors create costly downstream challenges.
One Engine Across All Tax Types
Supports sales tax, consumer use tax, and VAT from a single, centralized solution.
Unmatched Tax Content Depth
Coverage across 20,000+ jurisdictions, 195+ countries, and complex industry-specific tax requirements.
Better Data. Better Outcomes.
Improve tax accuracy with address cleansing and precise jurisdiction identification.
Integrated Certificate Management
Validate and apply exemption data in real time as part of the tax determination process.
AI-Enabled Classification and Automation
Reduce manual effort and improve product tax categorization with AI-powered capabilities.
High-Volume, Real-Time Transaction Processing
Deliver fast, reliable tax determination across systems, channels, and deployment environments.
Customer Stories: Tax Accuracy at Scale
Organizations across industries rely on Vertex O Series to improve tax accuracy, automate determination, and reduce the risk and complexity of managing indirect tax. See how customers are modernizing tax processes and gaining greater confidence in their tax outcomes.
How Vertex O Series Helps Every Team Get Tax Right
Tax Teams
Improve confidence in tax accuracy, reduce audit exposure, and apply consistent tax treatment across transactions.
IT Teams
Reduce manual maintenance, eliminate fragmented tax logic, and support tax determination from a centralized platform.
Finance Leaders
Increase confidence in financial outcomes through more accurate tax determination, stronger controls, and reduced compliance risk.
