About the Client
A Fortune 500 Power Generation and Electricity Provider Serving 4.3 Million Customers
This Fortune 500 company is a leading energy provider operating across 20 states and the District of Columbia, serving approximately 4.3 million customers with electricity, natural gas, and renewable energy plans. As one of the largest competitive power generators in the US, the company maintains approximately 39,000 megawatts of capacity across natural gas, nuclear, solar, and battery storage.
Challenges & Objectives
18,000 Monthly Invoices — Manual Verification Impossible
- Invoices frequently contained inaccurate or missing data, leading to incorrect General Ledger entries and tax overpayments
- Tax Determination Engines (TDE) like Thomson Reuters ONESOURCE operated without integrating relevant business rules, hindering error detection
- Errors committed to the General Ledger are significantly more expensive to correct — creating urgency for pre-commit verification
- Processing over 18,000 invoices monthly made manual verification completely impractical without intelligent automation
- Miscategorized invoices were routinely causing tax overpayments across the 20-state footprint
- Sarbanes-Oxley compliance required rigorous, auditable tax reporting processes
Solution
AI Tax Assistant — "The Good, The Bad, and The Maybe"
- TDE and ERP Integration — Tax Assistant integrated with the provider's existing Thomson Reuters ONESOURCE and ERP systems to intercept invoices before General Ledger commit
- Real-Time Reverse Audits — Every invoice assessed in real time; discrepancies flagged and routed for correction before finalization
- Three-Bucket Classification — Invoices sorted into "The Good," "The Bad," and "The Maybe" — streamlining reviewer attention to only the invoices that need human judgment
- Pattern Detection — Advanced analytics identifying systematic overpayment patterns and invoice miscategorization trends
- Continuous Learning — The system adapted from tax expert corrections, improving accuracy with every interaction cycle
- Human-in-the-Loop — Questionable invoices routed to a review queue; tax professionals retained full oversight and control
Results
Multi-Million Dollar Annual Savings — Errors Stopped Before They Start
$M+
Multi-million dollar annual cost savings from eliminated overpayments
✓
SOX compliance achieved with full audit trail and pre-commit error correction
↓
Audit costs significantly reduced — errors corrected before finalization
↑
Tax team freed from "grunt work" — focused entirely on strategic knowledge work