Making tax understandable by translating laws into numbers

Huygens advises quantitatively about tax, transfer pricing and valuations.


Huygens provides advice on Dutch and international taxation, transfer pricing and valuations to private equity firms, real estate investors, multinationals, start-ups and high-net worth individuals, including family offices.


We assist clients with their decision making on matters of international and Dutch corporate tax, withholding taxes and tax treaty application, whether in the structuring phase or in dispute resolution.

Transfer pricing

We help clients comply with the at arm’s length principle, or – in dispute resolution – strengthen their position in negotiations or discussions with tax authorities.


We provide valuations in accordance with the standards of the Dutch Institute for Registered Valuators (NiRV) in a tax and transfer pricing related context.

Latest case studies

An economic approach to transfer pricing for intra-group financing
Determining the at arm's length interest rate and debt volume of subordinated shareholder debt.


Mark van Casteren

+31 20 247 03 04
+31 6 10 89 88 38

Quirijn Knab

+31 20 247 03 03
+31 6 10 89 76 10

Stephan Kraan

+31 20 247 03 01
+31 6 82 32 67 91


Huygens advises quantitatively about tax, transfer pricing and valuations.

Why quantitative tax advice

Tax advice is all about numbers, but is mostly provided in words, through lengthy and technical memos. We want our clients to understand how much tax they will pay and how this may change under alternative positions.

Therefore, we provide our advice through concise and structured overviews; by considering the financials of your business or transaction. We express tax uncertainty in potential financial impact, and talk about risk in probabilities instead of words.

At the crossroads of tax and finance

Huygens combines its tax experience with knowledge on different types of businesses, financial instruments and valuation concepts. Our multi-disciplinary perspective allows for seamless translation of tax into valuations and finance, and vice versa.

Dedication and personal touch

Huygens offers advice with dedication and a personal touch. We strive to build healthy long-term relationships with our clients and a limited group of advisors in our network.

Academically engaged and accredited

Our professionals regularly publish scholarly articles and lecture at renowned academic institutions. Huygens is accredited by the Dutch Association of Tax Advisors (NOB) and one of our partners is a registered valuator.


Huygens Quantitative Tax Consulting B.V.
Herengracht 495
1017 BT Amsterdam
The Netherlands
+31 20 247 03 00

Chamber of Commerce: 84712368
VAT number: NL863327813B01

News & Articles

Advocate General opinion on Irish state aid to Apple
17 November 2023 - Huygens' summary of the Advocate General’s opinion for the Court of Justice of the European Union on Irish state aid to Apple.
Departure Rutger Hafkenscheid
On 1 November 2023, Rutger Hafkenscheid will leave Huygens.
Dutch Tax Court accepts the deduction of interest and disallows the deduction of commitments fees on intra group facilities
12 September 2023 – Dutch Tax Court decided on the deductibility of interest and commitment fees on intra group facilities: it accepted the deduction of interest and disallowed the deduction of commitment fees.


Huygens is always searching for new talent. Are you an advanced bachelor or master student in tax law or tax economics with an affinity with finance, or have you recently successfully obtained a master’s degree in tax and/or finance? We offer internships and part-time assignments for students and have job openings for recent graduates.

Are you interested in an internship or a job? Send your curriculum vitae and a motivation letter to Stephan Kraan at