Tax Technology

Build or choose the right applications for your tax teams

Vertex O Series

Enterprise indirect tax determination engine used by companies operating across hundreds of jurisdictions. The architecture flows through a connector layer (XML, JSON, Java, BCI) into the calculation engine, backed by TaxGIS for address-to-TAID resolution and TPS for rates, rules, and custom configurations.

ERP / Source
SAP, Oracle, Custom
HTTP POST
Connector
XML | JSON | Java | BCI
SOAP / REST
Calc Engine
CalculateTax90
Lookup
TaxGIS
Address to TAID
TPS
Rates & Rules
Output
Reporting
Returns, GL, Audit
Transaction Input
Vertex Response
Click "Run CalculateTax90" to simulate...
Configure
Vertex Cloud
TEE Extract
Generate Diff
Code Review
Peer Review
Staging
Golden Tests
Shadow
100% Traffic
Production
Canary → Full
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Thomson Reuters ONESOURCE

Unified tax platform covering indirect tax determination, income tax provision (ASC 740 / IAS 12), compliance filing, and workflow management. Runs on Oracle Cloud Infrastructure with an Oracle Autonomous Database processing 10B+ tax transactions annually across 190+ countries.

ERP / Source
SAP, Oracle, D365
Connector / iFlow
Address Engine
CASS-certified
Jurisdiction
Determination
REST /taxes/v1/calculate
Lookup
Tax Content
15,800+ jurisdictions
Exemptions
Cert Manager
Response
Compliance
Returns & E-Filing
Tax Provision Workflow (ASC 740 / IAS 12)
Data Ingestion
DataFlow / GL Feed
Book-to-Tax
Map Differences
Calculation
Current + Deferred
Review
ETR & Approval
Journal Entries
Auto-generate
Reporting
Disclosures
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ONESOURCE Platform Ecosystem
Indirect Tax
Determination engine for sales, VAT, GST, excise across 190+ countries
Tax Provision
ASC 740 / IAS 12 current & deferred tax calculation with ETR analysis
Compliance
750+ US forms, 60+ countries, e-filing via MeF and E-Filing Manager
DataFlow
ETL automation for GL data extraction, enrichment, and distribution
Data Hub
Cloud tax data warehouse with currency conversion and geo enrichment
Workflow Manager
Task tracking, deadlines, approvals with preloaded tax calendar templates