Our team

Edwin Jeanty van der Spek

Founder | Tax Advisor

Edwin has studied Dutch law at Erasmus University Rotterdam and Tax law at the University of Leiden. In addition, he has followed the banking fundamentals course NIBE, the vocational education of the Dutch Association of Tax Advisers and various consultancy and coaching courses. Edwin worked as a partner at Deloitte Belastingadviseurs BV from 2004 to 2015. Before that he worked at smaller specialized offices and since 2015 he has been independent again.

Edwin is a inspiring team manager and preferably works as an active cooperating foreman. His clients are medium-sized companies with highly skilled professionals, high net worth individuals and also smaller niche players in various sectors. Edwin has gained a lot of experience in leading multidisciplinary teams. His aim is to optimize the results of the team through collaboration. He is result oriented and always looking for opportunities for improvement. He does this with excellent analytical skills and good communication skills.

Claudia Roetman-Elshout

Office Manager

After the Office Management training, Claudia started at Deloitte in 2006 as a Senior Executive Assistant . In 2016 she made the switch to EJS Tax & Consulting BV. In addition to her work as office manager, Claudia provides various other substantive activities. An example of this is the drawing up of energy tax refund requests for various clients. Claudia works accurately, smoothly and quickly. Customer service is a top priority for her . Are you curious about what EJS Tax & Consulting can do for you? Please contact Claudia, she will ensure that your question is directed to the right colleague.

Oi-Yan Tse

Tax Advisor

Oi-Yan graduated in 2007 in Fiscal economy at Erasmus University Rotterdam and is a member of the Dutch Association of Tax Advisers.

She started her career with Deloitte Belastingadviseurs BV during her Master’s degree in Fiscal Economics and worked there until 2017 as a Senior Consultant. During her career at Deloitte Belastingadviseurs BV, Oi-Yan has gained extensive work experience in the field of (complex) corporate tax returns, income tax, general tax advice and international payroll . After a small trip to a small tax consultancy in The Hague, Oi-Yan has been working as a tax advisor at EJS Tax & Consulting BV since October 2018.

Oi-Yan is responsible for preparing the complex income tax and corporate tax returns as well as providing general tax advice . Oi-Yan is also involved in fiscal restructuring such as (legal) mergers and demergers and is also regularly involved in due diligences.

John Linders

Tax advisor

John gained experience working for more than 30 years with some international law firms and in particular with one of the Big Four accounting/tax firms as well as in Industry. During his time with Deloitte he has been a member of the Dutch Tax Board and member of the European Leadership team responsible for the strategic tax relations of Deloitte in Europe.
John has worked with a significant number of the top-quoted companies in the Netherlands, the U.S. and globally dealing with fulfilling their global taxation, M&A transactions and reorganizations, tax accounting documentation requirements and developing a (tax) control framework. Besides this, John worked on a number of high value individuals with cross border issues and assisted families with their domestic tax planning and compliance.
While working in Industry, John was the spokesperson of the company vis a vis stakeholders (banks and shareholders). He was responsible for the full financial position including compliance, projections, structuring and M&A, liaison with business to monitor and do a budget to actual overview and ascertain that financially the company was making its budgets. He has been working on an IPO on the London Stock Exchange and had lots of interactions with lawyers and banks.

Maarten Baak

Tax Advisor / Accountant

Maarten is an AA accountant (accounting consultant). During the start of his career, Maarten also graduated as tax advisor.

He gained experience working for a Big Four firm, as well as smaller firms. 

Maarten is responsible for preparing income tax and corporate tax returns, as well as the preparation of annual accounts. Maarten started working with EJS Tax & Consulting in March of 2023.

Joop Wolfsen

Tax advisor / Accountant

Joop has a degree in AA accountancy. He also completed a course in tax law and income / corporate tax returns. 

He has gained experience working for a Big Four firm, but also with a real estate organisation. Joop is also a trusted advisor for freelancers.

Joop is responsible for preparing income tax and corporate tax returns, as well as preparing annual accounts.