About us

OnestopTaxPrep means one point of contact for both your Dutch  and your US Income Tax Returns. With professional and personal service and short turn-around preparation time. This is our added value to your tax returns!

OnestopTaxPrep is specialized in providing Dutch tax preparation services to foreign nationals living and / or working in The Netherlands.

In addition, by also specializing in US income tax, onestopTaxPrep can achieve full integration of both your Dutch and your US tax returns. Maximizing your tax efficiency and without you having to spend extra time dealing with multiple tax preparers in multiple locations. 

Company Profile

OnestopTaxPrep is headed by Ashwin Dwarkasing. With over 10 years of specialization in international Dutch and US Income Tax for individuals, Ashwin started his career in 1998 with the international tax division of PricewaterhouseCoopers NV in Amsterdam. At PricewaterhouseCoopers he specialized in providing integrated Dutch and US consultancy to expats and their employers, mainly large multinationals. In 2005 Ashwin joined TaXpat BV in Amsterdam focussing more on personal Dutch and US taxation matters of the expats. A first step towards better addressing the needs of the most important factor; the person behind the tax return.

Click here for full profile of Ashwin Dwarkasing

OnestopTaxPrep was formed in 2009 with the intention to make the tax preparation process fully personal. This personal approach makes the preparation process a lot more enjoyable for you. And for us. 

Company Strategy

OnestopTaxPrep is dedicated to providing you with professional assistance tailored to your unique tax position. In addition, onestopTaxPrep offers a personal level of service, one point of contact, quick turnaround preparation time. And while maintaining very competitive fees.

This is achieved by focussing on tax preparation services only. In addition, onestopTaxPrep's business model is based on sustainability rather than growth and expansion. By carefully balancing the volume of clients against the level required to sustain the business, you, as our client, can count on more attention and better service. And at competitive fees making the entire process a lot more enjoyable.

• over 10 years of experience in Expat Taxation;

• expert knowledge of Dutch Income Tax; 

• expert knowledge of US Income Tax; 

• added value through personal approach to service; 

• one contact person; 

• personal attention; 

• high service level; 

• competitive fees.