Congress
Tax Tech: AI in Tax Practice

Working smarter starts here.

Thursday, November 27, 2025

9:30 a.m.-5 p.m.

jaarbeurs utrecht

PE points: 6

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About our congress

Working smarter starts here.

AI is changing tax practice at lightning speed. Tools and applications are popping up like mushrooms - but what use is it really to you in your work? How do you keep up without getting lost? Which applications are relevant to your daily practice? And how do you use them safely, effectively and strategically? Understanding AI tools is no longer a nice-to-have, but a must-have for every tax professional who wants to stay relevant.

Ready for today, prepared for tomorrow

The Tax Tech: AI in Tax Practice conference focuses on the practical applications of AI. No abstract "what if" scenarios, but concrete insights, inspiring keynotes and interactive workshops that will get you started right away. From legal prompting to custom GPTs, from privacy to strategy: you compose your day yourself with three hands-on sessions that fit your needs.

At the same time you will get tools to navigate to the future. Find out what AI developments are coming, how to future-proof your career, and what steps you can take today to get ahead tomorrow.

Get inspired by experts, learn from peers, and discover how to use AI effectively - today and in the future.

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Program

9:30 a.m.

Opening conference by chairman of the day

9:35 a.m.

Albert Bomer & Roderick Lucas

This session bridges the gap between technology and taxation. Practical, recognizable examples are used to explain how AI works, in a way that is understandable even for non-technicians. This will quickly show what is already possible today, what we can expect in the near future and where the limits of AI lie.

This knowledge is then translated into concrete tax cases and daily practice examples. This will give you a clear picture of how AI can support tax practice, where the opportunities are and what pitfalls to avoid.

10:45 a.m.

Change of venue & coffee & product demonstration

11:15 a.m.

Workshop Round 1

Choose the workshop that suits you or engage with vendors of the latest tax tech solutions.

12:15 p.m.

Lunch break

1:45 p.m.

Workshop Round 2
Choose the workshop that suits you or engage with vendors of the latest tax tech solutions.

2:45 p.m.

Change of venue & coffee & product demonstration

3:15 p.m.

Workshop Round 3
Choose the workshop that suits you or engage with vendors of the latest tax tech solutions.

4:20 p.m.

Pole Position with AI in Tax Technology
A Max Verstappen-inspired journey!

Johan Theunissen
Chief Information Officer (CIO) - Keeyns

5 p.m.

Closing conference & start of drinks

Workshops

Create your own day by choosing 3 workshops from the offerings below.

  • Practical AI tools for everyday use in taxation

    AI is no longer future music: more and more tax professionals are discovering how smart tools make their work faster, clearer and more efficient. In this workshop we will show you how to use AI in your daily practice - without technical prior knowledge and with a focus on immediate results.

    Participants learn which possibilities are already available, what to look out for in responsible use and how to integrate AI step by step into your work processes. The goal is practical and concrete: you will go home with insights and skills that you can immediately apply in your own practice the next day.

    This workshop will be conducted by:

    Thierry Boonstra - Forvis Mazars

  • The most important skill for working with AI tools is prompting. During this workshop you will learn the art of legal prompting, namely specifically drafting prompts, so that as a criminal justice professional you can use language models so effectively in your daily work.

    This workshop will cover, among other things, how to build a prompt, how elaborate you make a prompt and what you want to avoid at all costs.

    You will get tips on how to use AI for writing emails, texts and blogs.

    Participants will go home with a prompt book, a list of killer prompts that can be used by lawyers in everyday practice.

    This workshop will be conducted by:

    Joyce Boonstra - The Innovative Lawyer

  • This interactive workshop will introduce you to the capabilities of Custom GPTs and how you can use them practically in your own work. We start with a brief introduction to terminology: what is the difference between ChatGPT, Custom GPTs and Assistants via APIs, and what prompting techniques can you use to achieve better results?

    Then the trainer shows how to build a Custom GPT step by step with OpenAI and gives inspiring examples of his own applications, including in workflows that save time and increase quality.

    Then you get to work on your own. In small groups, you come up with your own idea for a Custom GPT and work together to create a suitable prompt. One of the group ideas will be turned into a working GPT right on the spot, so everyone can see how the process works in practice.

    Because not every participant has a paid account, the trainer ensures that all remaining group prompts are converted and shared afterwards. So you walk away with concrete examples and tools to continue experimenting yourself.

    This workshop will be conducted by:

    Jan Bart Schober, Tax consultant & tech enthusiast

  • AI-based legal research tools for tax professionals

    Doing legal-tax research is often time-consuming: from sifting through laws and regulations to analyzing case law. AI can make this process faster and more manageable. Meanwhile, there are several AI-based legal research tools available - but which one do you choose?

    In this workshop we put several of these tools side by side. Using concrete examples, we will show where they can already be used today within taxation. We show how the systems work and discuss both their advantages and limitations, so that participants get a fair and complete picture of the possibilities of AI in legal-tax research.

    This workshop will be conducted by:

    Thierry Boonstra - Forvis Mazars

  • Artificial intelligence is rapidly changing how we work, decide and add value. For tax professionals, this presents both opportunities and challenges: routine work is being automated, while strategic insight, creativity and customer focus are becoming more important than ever.

    In this workshop, we will explore how AI is impacting tax practice, what skills you need to stay relevant, and how you can use technology as a powerful tool in your career. Expect practical examples, inspiring discussions and a fresh perspective on your role as a tax practitioner in an era of rapid technological change.

    This workshop will be conducted by Philip Rulo

  • In this hands-on workshop, participants will discover the power of AI to automatically extract structured information and data from tax documents. This allows the AI model not only to quickly smartly classify large volumes of contracts, correspondence and financial data, but also to use the extracted information to complete standard forms, and generate draft texts for tax advice. Suitable for tax and finance professionals who want to digitize their work processes and do so securely locally without uploading sensitive documents to a cloud service. No AI prior knowledge required.

    This workshop will be conducted by Arnoud Wils - Research Software Engineer at Maastricht University

  • AI tools for tax consulting are popping up like mushrooms. But the right start is not choosing a tool - it starts with getting your challenges in focus.

    In this interactive workshop, you will assume the role of your organization's AI committee. Together you will identify the biggest bottlenecks in tax practice, determine where AI can make a truly measurable impact and formulate success criteria.

    Through a structured exercise, you will design the "problem" part of an AI strategy, present your findings, and learn from other participants' approaches. Each participant will go home with a concrete Tax AI Canvas: a practical framework to shape, test and drive AI initiatives in their own organization. This will enable you to set up pilots that are not only innovative, but also add sustainable value to your advisory practice.

    This workshop will be conducted by Koen Aarns - SDU

  • AI is rapidly transforming taxation. But how do you ensure that your organization effectively uses AI technology? Does your organization want to "do something" with AI, but is not clear how and where to start? What steps can be taken and what decisions need to be made? This workshop, led by The Innovative Lawyer, will focus on the answers to these questions.

    During the workshop, the speakers cover:

    • Challenges and opportunities of AI

    • What an AI strategy entails

    • Why a thoughtful AI strategy is crucial in the current era

    • The core components of an effective AI strategy

    • Analyzing opportunities and risks of AI tools

    • The first steps to your own AI strategy

    • Best practices for responsible AI implementation

    This workshop is provided by Precious Chocolaad - The Innovative Lawyer

  • This workshop will discuss the legal aspects of using AI within tax services. As AI is increasingly used to support day-to-day operations, it is crucial that tax professionals are aware of the rules surrounding privacy, data protection and security. What is allowed and what is not? Where are the risks? And how do you ensure that your organization is compliant?

    During this interactive session, you will get answers to frequently asked questions, such as:

    • How do I stay within the frameworks of the AVG and AI-Act when using AI?

    • What documentation and agreements are needed to be compliant? 

    • Do I need to get permission from my clients when I want to use AI?

    • How do I fulfill my transparency obligation?

    • What does ISO certification mean in the context of security and AI?

    • Can I use American providers?

    The workshop is specially designed for tax professionals, with plenty of room for questions, practical examples and concrete tools that you can immediately apply within your own organization.

    This workshop will be conducted by:

    Lisa Molenaars - Considerati

  • Vibe coding is a revolutionary approach where you build software by simply describing what you want in plain language, and AI generates the code for you. In this workshop, you'll learn how, as a tax professional, you can use AI tools to create practical day-to-day applications without writing a line of code.

    This workshop will be conducted by:

    Johan Gorter - AFAS

    Menno van Dongen - Forvis Mazars

  • This session focuses on the latest generation of AI applications: agents. We will show live how agents independently perform complex tasks, from collecting and combining information to making decisions. To fully understand this, we will compare agents with traditional LLM prompts and custom GPTs. This makes it clear where the real added value of agents lies, and in which situations a simple LLM response or a custom GPT is just enough.

    This workshop will be conducted by:

    Roderick Lucas

  • During this interactive workshop, we will discuss how various classical and contemporary philosophers would look at Artificial Intelligence and society and what this means for our own position and taxation. The workshop provides an essential exploration for tax practitioners who want to understand what the use of AI really means for their field. What would Plato or Kant say if they had been in the space? No prior knowledge of philosophy or AI is required. 

    This workshop will be conducted by:

    Charles Smeets

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About the speakers

Albert Bomer
Professor of Tax & Technology - Vrije Universiteit Amsterdam

Albert Bomer is Professor of Tax & Technology at VU University Amsterdam, where he also serves as Portfolio Holder for Valorization and Program Director of the Master of Tax Law. His expertise lies at the intersection of tax law and digital technology, with a particular focus on the impact of automation, data analytics and AI in taxation. In addition to his academic work, he is a lecturer at Tilburg University and the Dutch Association of Tax Advisers (NOB), among others. He is also editor of NLFiscaal and the platform TaxTech, and regularly appears as a speaker and publicist on tax and technological developments.

Roderick Lucas
Founder & CEO Moonlit.ai
Assistant professor - Vrije Universiteit Amsterdam and Tilburg University

Roderick Lucas is founder and CEO of Moonlit.ai and has a background in data analytics and artificial intelligence. After starting at Deloitte Tax & Legal, he focused on applying AI in legal contexts. Based on his passion for data and language processing, he developed the legal tech platform Moonlit.ai with a multidisciplinary team. This platform makes it possible to analyze legal judgments for content and patterns. In addition to his entrepreneurship, Roderick is an assistant professor at VU University Amsterdam and Tilburg University, where he focuses on technology in law.

Jan Bart Schober
Tax advisor & tech enthusiast

Jan Bart Schober is a tax consultant with a broad international background and a specialization in payroll taxes and international labor. With more than 25 years of experience as a tax lawyer at Loyens & Loeff, he combines in-depth technical knowledge with a keen eye for practical applicability. His style is analytical, honest and down-to-earth.

Jan Bart has a great affinity for the application of technology in taxation. By founding KAIROS tax solutions, he combines his experience as a consultant with AI tools and workflow automation to make tax advice and tax processes more efficient, accessible and future-proof.

Joyce Boonstra
Founder - The Innovative Lawyer

Joyce Boonstra is founder of The Innovative Lawyer, which guides lawyers and tax specialists through the rapidly changing AI landscape. After a fifteen-year career in the legal profession - including at De Brauw Blackstone Westbroek - she founded The Innovative Lawyer out of her deep affinity for technology and innovation. Joyce helps legal professionals and their organizations understand, apply and responsibly deploy artificial intelligence, and provides training, lectures and strategic advice at the intersection of law and technology.

Johan Gorter
Lead Software Architect - AFAS Software

Johan Gorter is Lead Software Architect at AFAS Software, where he is responsible for technology direction and innovation within the development team. With over twelve years of experience in software development, he combines in-depth knowledge of architecture with a keen eye on the application of AI. Through his newsletter and website johangorter.com, Johan regularly shares accessible insights on the latest AI developments in software engineering.

Precious Chocolate
Legal Tech Consultant - The Innovative Lawyer

Precious is a lawyer working at the intersection between technology and the law: cybersecurity, privacy and data protection. She has extensive knowledge of the legal, ethical and societal issues associated with artificial intelligence. In addition to technical knowledge, Prescious' expertise includes the principles of AI systems, its regulation, and privacy protection. At The Innovative Lawyer, Precious supports legal professionals and organizations in (better) understanding, responsibly applying and implementing this technology in practice. Precious regularly acts as a lecturer and is characterized by her infectious energy, pragmatism and innovative approach.

Philip Rulo
Partner at August & Co-Founder - ZEGER

Philip Rulo is partner at August and co-founder of ZEGER. From August he guides legal and tax professionals and consulting firms on issues at the intersection of content, culture and practice development. He is also one of the driving forces behind ZEGER - Inhouse Tax Consultancy, an innovative platform that connects independent tax professionals with leading clients. ZEGER offers high-quality, flexible tax support and a strong network in which professionalism, autonomy and job satisfaction are key.

Charles Smeets is characterized by his innovative, empathetic and strategic way of doing business. He focuses on the relevance that companies, individuals and institutions have for society, and tests this against political and moral standards.

He is involved in several projects in line with his philosophy of life, such as in the (sustainable) energy and health sector and in supporting Ukraine. As founder of Urbancooker, he answers strategic and moral questions of companies. "What is right - all things considered..."

With his corporate background in data, strategy and innovation, Smeets brings valuable experience. For example, Charles worked in various roles, including Chief Data Officer at Shell and Lead Innovator at ONVZ. This unique combination of corporate experience, entrepreneurship and philosophy allows him to follow his own path and approach complex issues from both a strategic and social perspective.

Charles Smeets
Innovator, Philosopher, Strategist 

Lisa Molenaars
Team Manager Legal & Responsible AI / Senior Legal Manager - Considerati

As Senior Legal Manager, Lisa advises both private and public sector organizations on a variety of legal issues related to privacy, data protection and AI. Her experience includes conducting AVG maturity measurements and rolling out associated improvement measures. In addition, Lisa is part of the DPO and privacy team of various government organizations and companies, where she serves as a pragmatic and strategic sparring partner for her clients.

Arnoud Wils
Research Software Engineer - Maastricht University

Arnoud Wils is a software engineer at The Plant, the digital lab of the Faculty of Arts and Social Sciences at Maastricht University. Natural Language Processing (NLP) and LLM technology form his daily work area. He supports researchers and students in using AI and digital technologies to collect, analyze and visualize research data.

Arnoud is also involved as a lecturer in several courses and workshops at the Faculty, initiating students in technologies for automatic digital text analysis.

Thierry Boonstra
Director - Forvis Mazars

Thierry Boonstra is a tax lawyer at Forvis Mazars, specializing in International Tax, M&A Tax and Tax & Data Analytics. Since 2012 he advises (inter)national companies on cross-border tax structures, mergers and acquisitions, and the smart use of data within the tax domain. In addition to his advisory practice, Thierry is active as an ambassador for the Mazars Foundation.

Menno van Dongen
Director - Forvis Mazars

Menno van Dongen is Senior Tax Advisor Employment Tax & Global Mobility Services at Forvis Mazars, with a focus on Compensation & Rewards. He advises companies on issues including cross-border employment, working from anywhere policies and employee participation schemes.

Menno helps organizations navigate the complex tax challenges of modern forms of employment and develops strategic reward structures that attract and retain talent in today's war on talent. With his affinity for AI and Tax Technology, he is constantly looking for innovative ways to optimize (tax) processes and manageability.

Johan Theunissen
Chief Information Officer (CIO) - Keeyns

Johan Theunissen has more than 30 years of experience in complex IT environments. He has worked as a principal consultant and architect for several large organizations, including BDO, Fortis Bank, Boskalis, Fontys Hogescholen, Philips Electronics, Wolters Kluwer and the municipality of Rotterdam.

He is currently Chief Information Officer (CIO) at Keeyns, where he drives the design and development strategy for the Keeyns Tax Collaboration Platform. These include clear compliance dashboards, validated workflows and seamless Microsoft integrations so that teams can collaborate on tax issues without friction.

Koen Aarns
AI Product owner at Lefebvre Sdu

Koen Aarns is co-founder of legal-tech startup Bluetick, which was acquired by Sdu in January 2023. Since then, he has worked as AI Product Owner at Lefebvre Sdu, leading the development and strategy of AI-driven solutions for legal professionals

For whom.

Tax Tech: AI in Tax Practice is designed for tax professionals such as tax advisors, tax professionals in corporate or government practice, compliance officers, tax directors and tech-savvy professionals within tax advisory or accounting firms.

Whether you want to think strategically about AI within your organization, work more efficiently with smart tools, or get started yourself with legal prompting or a custom GPT: this conference offers practical depth at your level.

Practical information

Date & Time
The conference will take place on Thursday, Nov. 27, from 9:30 a.m.-5 p.m.

Dressed drinks will be held starting at 5 p.m.

Location
Jaarbeurs Utrecht

PO/PE credits
6 (3 fiscal and 3 non-fiscal)

By participating in this congress you can obtain continuing education points for the NOB, RB, KNB and NOvA. You can obtain a maximum of 6 points for full participation in the congress. You will only receive a certificate with the requested points if you sign the attendance list at the start and end of the congress. When you register, you can indicate which PE points you wish to receive. Sending the certificates may take several weeks.

Cost

  • Regular rate: EUR 699,- excl. VAT

  • Government rate: EUR 425 excluding VAT


Multiple participants

If you come with multiple participants from one organization, each participant will receive EUR 75 discount. If so, please register as a group by sending an e-mail .

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Our partners

Get visible on Tax Tech: AI in Tax Practice

Introduce tax professionals to your AI tool or solution

During the conference Tax Tech: AI in Tax Practice, we bring together tax advisors, tax professionals, compliance officers and other professionals from the tax field around one theme: the practical application of AI in their work.

Are you working on an AI solution relevant to this target audience? Then this conference is the place to present your solution, give demos and engage in conversation with an engaged and curious audience.

What we offer you as a vendor:

  • A booth in the central network space

  • Attendance at the entire conference for 2 people

  • Ability to provide a demo or tool introduction

  • Networking opportunity with participants and speakers

  • Inclusion in the conference program booklet

Limited number of seats available:

Interested in attending as a vendor or sparring on a suitable interpretation? Contact us at info@theinnovativelawyer.ai.

Impression

Question or comment?

Do you have a question about this conference? Let us know!

Please fill out the contact form. You will receive a response within 2 business days.

Of course, you can always call or email us:

E-mail: info@theinnovativelawyer.ai

Phone number: 070-450 09 74

Do you have a complaint? That is very annoying, but we still like to hear it. Please pass it on to us via the complaint form.

Why choose us?

Legal content &
Technological knowledge

We combine legal expertise with technological knowledge. As a result, we know what kind of problems lawyers face and what solutions may or may not fit. Precisely this combination enables us to help you further.

Practical &
Accessible

Our approach is hands-on and our knowledge directly applicable, with the goal of making AI accessible, understandable and usable for any legal professional, regardless of your knowledge level or experience, so you can work with AI with confidence.

Committed &
Flexible

We are fully committed to your success and tailor our services to your unique needs, with personal attention, customized solutions and a flexible approach always focused on getting the best results.

Continuous Learning &
Development

We believe in continuous growth and improvement by learning, innovating and adapting to a changing world. We think and move with you and your daily practice. For new challenges, we find new solutions.