Madelon Warning Senior Tax Advisor

Madelon Warning

Personal quote / vision

Within Forvis Mazars I advise international clients in the field of payroll taxes and global mobility. A versatile field with new developments all the time.

I enjoy explaining complex matters in a clear manner so that clients can actually put them into practice. To know what clients need and to respond to this, personal contact, empathy and good questions are in my opinion the most important.

I think proactively with clients and give broad advice. It's also nice that Forvis Mazars has short lines of communication, making it easy to link up with specialists in areas such as corporate tax, HR, labor or migration law. We also work a lot with our colleagues abroad.

Specialist experience

  • Advising employers and individuals on the consequences of cross-border employment (including temporary employment, working in multiple countries, remote working and international services)
  • International payroll (such as application of salary splits and tax equalization)
  • Advising on global mobility policies / assignment policies
  • Advising on executive compensation in an international context
  • International social security (A1 statements)
  • 30% ruling / reimbursements for extraterritorial costs
  • The withholding obligation (tax liability) of foreign employers (and their payroll in the Netherlands)
  • Income tax returns in the year of migration or with other international elements
  • The qualification of internationally accrued pensions and retirement provisions
  • Giving workshops and presentations on topics related to payroll taxes and global mobility

Specific client experience

  • A wide variety of both Dutch companies and foreign companies operating in the Netherlands
  • Individuals working internationally or emigrating
  • Individuals with internationally accrued pensions or other retirement provisions

Education and work experience

  • 2024 - present |Forvis Mazars | Senior Tax Advisor
  • 2008 - 2024| Mazars | Senior Tax Advisor
  • 2011 - 2014 | Dutch Association of Tax Advisers
  • 2011 Master in Fiscal Economics
  • 2008 Bachelor in Management, Economics and Law

Other positions

  • Chairman Works Council Mazars
  • Member of the Dutch Association of Tax Advisers (NOB)