PwC Belgium rolls out Belgian version of the PwC Tax AI Assistant: “The tax profession is evolving at full speed”
Diegem - 4 September 2025 – PwC Belgium launches, alongside alliance partner Harvey, its Belgian tax trained model in September 2025. Now available to all PwC Belgium’s tax professionals, it will act as an AI assistant generating tax content customised to the Belgian regulations as part of the delivery of tax services to clients. “As one of our most significant investments in recent years, we are pleased that our professionals will benefit from advanced technology designed to streamline routine tasks and, most importantly, provide them with additional time to focus on delivering effective solutions for our clients. Investments like these are increasingly transforming the role of our tax experts,” says Christoph Zenner, Tax Leader at PwC Belgium.
PwC’s alliance with Harvey is exclusive among the Big Four and combines PwC’s deep domain expertise in M&A, tax and legal with Harvey’s advanced AI capabilities to deliver a platform that streamlines document review and analysis, and optimises workflows by collecting, processing and interpreting large and complex datasets to produce recommendations, predictions and data-backed insights.
The newly added Belgian tax layer trained by PwC Belgium’s tax experts enables its tax experts to deliver enhanced insights, transparency, and quality to clients. The enrolment of PwC’s Tax AI Assistant is part of PwC’s wider strategy to lead the professional services market in the adoption of AI and technology, ensuring clients and our people benefit from the changing environment in which they operate. In line with its responsible AI framework, PwC is also deploying models that allow clients’ tax functions to harness the power of the tool directly to unlock the full impact of AI.
“The introduction of AI tools like these, transform the function of tax experts increasingly. The introduction of the tool is fully supported by a learning curriculum to make sure people can quickly get to grips with it while going through their technical journey as tax professional at an increased pace. It’ll also be integrated into workflows for improved productivity and quality.” says Christoph Zenner, Tax Leader at PwC Belgium. “Our tax profession is evolving at such a rapid pace and we want to stay at the forefront with our people and our services. PwC’s AI Tax Assistant will give juniors the opportunity to learn and specialise quicker, our clients will benefit from this enhanced way of working and expertise.”
The Tax AI Assistant tool cross references and has been trained on case law, legislation, and other underlying sources, with the data being continuously refreshed to reflect changes and updates to tax rules. As a result, the model generates significantly higher quality and accuracy in the tax domain when compared to publicly available large language models (LLMs) and provides references to underlying data, allowing for transparent and accurate validation by tax professionals.
Find out more about the Tax AI Assistant here.
About PwC
At PwC, we help clients build trust and reinvent so they can turn complexity into competitive advantage. We’re a tech-forward, people-empowered network with more than 370,000 people in 149 countries. Across audit and assurance, tax and legal, deals and consulting we help build, accelerate and sustain momentum. Find out more at www.pwc.com.
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About Harvey
Harvey is domain-specific AI for legal and professional services. Our products streamline workflows in areas including contract analysis, due diligence, compliance, and litigation to drive efficiency and value. Global law firms and large enterprises around the world use Harvey to enable faster, smarter decision-making. Backed by world-class investors including Sequoia, Kleiner Perkins, GV, OpenAI Startup Fund, and Coatue, Harvey is used by 515+ customers in 54+ countries.
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