Deloitte’s Tax and Tariff App Powered by Celonis

Modern tax functions are under increasing pressure from evolving regulations, cross-border transactions, and growing data volumes. At the same time, many organizations still rely on fragmented systems, manual reconciliations, and reactive analyses – making it difficult to detect compliance risks early, ensure consistent tax treatment, and respond efficiently to audits or regulatory change.

Deloitte’s Tax and Tariff App, powered by Celonis, addresses these challenges by transforming ERP data into actionable transparency, embedded controls, and proactive tax risk management.

End-to-End Tax Transparency

The app reconstructs and analyzes tax-relevant data across financial processes in real time, creating a unified view across VAT, withholding tax, tariffs, and chain transactions. It enables users to identify where risks arise, which entities and transactions are affected, and how issues propagate across processes such as Procure-to-Pay (P2P), Order-to-Cash (O2C), and General Ledger accounting. By integrating master data, transactional data, and tax logic into a single source of truth, the solution provides a contextual foundation for tax professionals and automation, enabling process-aware decision-making and more consistent control.

Comprehensive Control Framework

The app operationalizes a robust tax control framework by embedding a wide range of data-driven checks directly into the data model. These controls cover key areas such as tax code usage, master data quality (customers and supplies), withholding tax classification, tariff classification, and transactional consistency. Advanced analytics – including text mining, anomaly detection, and rule-based validations – identify inconsistencies, missing tax attributes, and unusual transaction patterns. This enables continuous monitoring instead of periodic reviews.

In addition, the app supports operational intervention by allowing organizations to act on identified risks in real time – such as blocking transactions, triggering workflows, or enforcing corrections at the source before incorrect tax treatment occurs.

Proactive and Cross-Domain Optimization

Deloitte’s Tax and Tariff App provides dedicated modules aligned with key tax and trade domains:

1. VAT – Controls & Reimbursement Steering

• Monitors tax code usage across P2P and O2C processes
• Detects incorrect VAT treatment, missing postings, and cross-border errors
• Embeds continuous VAT compliance controls Safeguards input VAT recovery through transparency and optimization insights

2. Withholding Tax – Controls & Compliance

• Identifies missing or incorrect withholding tax indicators
• Validates applicability and rates through embedded controls
• Flags outdated master data and compliance risks

3. Tariffs – Classification & Duty Optimization

• Analyzes tariff classification accuracy across products and transactions
• Detects inconsistencies in customs duties and tariff application
• Monitors master data quality for tariff codes and country-of-origin information
• Identifies opportunities for duty optimization and improved trade compliance

4. Chain Transactions – Transparency & Risk Detection

• Provides end-to-end visibility into complex, multi-step chain transactions
• Identifies incorrect VAT treatment across cross-border supply chains
• Detects inconsistencies between physical goods movements and financial postings
• Supports compliant structuring and documentation

Measurable Business Impact

Through continuous, data-driven monitoring, Deloitte’s Tax and Tariff App helps organizations reduce compliance risks, improve audit readiness, and increase efficiency in tax operations. Benefits include reduced penalties, faster issue resolution, improved data quality, and enhanced transparency across tax and trade domains.

Deloitte’s Differentiator

Combining deep tax and trade expertise with process mining and data analytics, Deloitte delivers a scalable and modular solution that grows with organizational needs. The app not only provides visibility into tax and tariff risks but enables tax, finance, and operations teams – along with automation and tax agents – to act on them proactively, creating a fully integrated control and execution environment.