ttmtax is a full service tax firm that combines a high level of tax service with competitive rates. We are the trusted advisor for all your Dutch tax affairs, social security issues and financial questions. Our tax services can be chosen separately or in a package deal. Our rates are fixed and transparent, so no hidden costs or unexpected surprises. All tax services are provided via video conferencing, telephone and/or e-mail.

Book your appointment


  1. Dutch tax advice

    ttmtax can assist you with all your questions related Dutch taxes, especially related to Dutch income tax. We can also liaison between you and other (tax) specialist in our network as your trusted advisor in the Netherlands.  

  2. 30%- ruling

    Advise and assess if you (or an employee) qualify for the 30%-ruling. Preparation and filing of the 30%-ruling with Dutch tax authorities.  Advise regarding implementing the 30%-ruling in the Dutch payroll of the employer.

  3. Blue 1st aid Dutch tax authorities

    You can send all the letters you receive from the Dutch tax authorities during the year to our office and we will translate, explain and inform you what action has to be taken, including contact with the Dutch tax authorities. Please note that this service does not include appeal against tax assessments.

  4. Preliminary tax refund (VT)

    Did you buy a house (monthly mortgage interest) or do you have other tax deductions, and you want a preliminary refund (“voorlopige teruggave”) during the year? Via our professional software we can file your preliminary tax refund directly with the Dutch tax authorities without your DigiD.

  5. Tax (estate) planning

    Estate planning can be complicated due to cross border and international taxation. We can assist you with all your questions regarding (inter) national inheritance tax and gift tax.

  6. Entry / Exit meetings

    During this meeting we discuss all the Dutch tax and social security implications of your migration, including insight in Dutch culture, day to day tips and tricks.

  7. Business set up

    Planning to set up a company in the Netherlands? We can assist you to meet all the legal/ tax requirements and help you cut through the red tape. Via ttmtax and our network of specialists you can set up your company within a couple of weeks.

  1. Consultancy

    Via our subsidiary ttmconcepts, we also help clients to improve their performance and tackle their challenges in strategy, operations and organization. We are specialized in project management related to innovation, business model design and strategy development.

  2. Dutch payroll services

    We offer hands on tools to deal with international wage tax and social security issues when hiring an expatriate in your organization. ttmtax can also to set up a Dutch payroll or implement the 30% ruling in the payroll.

  3. Dutch tax allowances

    Childcare allowances, Child allowance, Healthcare allowance and housing allowance. We can assess if you are eligible and can file the application via our professional software directly with the Dutch tax authorities without the use of your DigiD.

  4. US tax return

    US-citizens and US green card holders living in the Netherlands are normally also required to file a US individual income tax return. We work in cooperation with several US tax specialists to tackle the Dutch and US filing obligation.  

  5. Second opinion

    Cross border and international taxation can be complicated. Not confident regarding the level of your current tax service and in need a second opinion regarding your tax position, we can assist.

  6. Social security

    Application of A1-forms and/or Certificate of Coverage.

  7. Appeal

    We can file an appeal against your final Dutch tax assessment.