# PwC VAT Fraud Prevention Prototype

> The PwC VAT Fraud Prevention Prototype is a blockchain-based system designed to combat value-added tax fraud, developed by PwC in collaboration with Microsoft. The system leverages the immutable and transparent properties of blockchain technology to make VAT transactions between companies traceable and reduce fraud. The EU faces annual losses of approximately 150 billion euros from VAT gaps, with 50 billion euros directly attributable to fraudulent activities.

**Sector:** Tertiary sector · **Industry:** Auditing and tax consulting · **Organisation:** PricewaterhouseCoopers (PwC) in Zusammenarbeit mit Microsoft · **Maturity level:** Concept

Canonical URL: https://www.sapientblock.com/en/use-cases/pricewaterhousecoopers-umsatzsteuerbetrug-digital-verhindern

## Documentation status

- **Project status:** Concept
- **Evidence:** Evidence medium
- **Editorial review:** Ufuk Avci, 15 April 2026

## Description

PwC Netherlands has developed and published two practical blockchain tax compliance use cases, including the prevention of VAT fraud through blockchain technology. The whitepaper and the online article on pwc.nl document the cases in detail.

VAT fraud costs the EU approximately 50 billion EUR annually: Missing trader fraud (a company in the chain disappears without remitting the collected VAT to the tax office) and carousel fraud (the same goods are traded multiple times between different EU countries, with VAT reclaimed each time without ever having been paid). Blockchain solution: every B2B transaction is documented on a tax blockchain; the tax office has authorised read access; missing links in the chain (missing trader) or circular structures (carousel) are immediately recognisable. EU initiative ViDA (VAT in the Digital Age): The European Commission has adopted ViDA as a reform package introducing real-time VAT reporting for B2B transactions from 2028. Blockchain is a natural infrastructure for this. PwC documented two concrete cases in the whitepaper Two Practical Cases of Blockchain for Tax Compliance.

## Benefits

- Companies can significantly reduce their compliance costs through automated VAT documentation and processing.
- The system can reduce VAT fraud by about 30 percent through increased transparency, thereby preventing substantial financial losses.
- The immutable blockchain documentation creates trust among all involved parties and eliminates disputes over the authenticity of tax documents.
- Automated processes significantly reduce administrative effort and associated costs for both companies and tax authorities.
- Employees are freed from time-consuming manual tax compliance tasks and can focus on more value-adding strategic activities.

## Challenges

- Companies need to adapt their existing ERP and accounting systems to the blockchain platform and provide appropriate training for their employees.
- Implementation requires comprehensive integration of all involved systems from companies and tax authorities, which brings complex technical and organisational challenges.
- Legal recognition of blockchain-based tax documentation by all relevant jurisdictions still needs to be established.
- Employees must acquire new technical skills in handling blockchain systems and adapt to changed workflows.

## Technology foundation

The system is based on Microsoft Azure Blockchain Workbench and uses an Ethereum-based blockchain network with three nodes. Blockchain technology is suitable for this use case because it stores all VAT transactions immutably and transparently, making subsequent manipulation impossible and allowing all involved parties to trust the data integrity.

## Sources

- [PwC Two Practical Cases of Blockchain for Tax Compliance](https://www.pwc.nl/nl/tax/assets/documents/pwc-two-practical-cases-of-blockchain-for-tax-compliance.pdf)
- [Blockchain helps prevent VAT fraud](https://www.pwc.nl/en/topics/digital/clientcases/blockchain-helps-prevent-vat-fraud.html)