International Coverage...

Our dedicated team works diligently and collaboratively to bring you individualized attention and effective, timely tax
solutions. We enjoy doing what we do, which translates into positive client experiences. Give us
a call and see how you can benefit from working with us.

Darkoa Naito-Hanke

Enrolled Agent, Principal

Darkoa has been practicing for close to 20 years, most of this time, outside the United States. She initially trained with and worked for PricewaterhouseCoopers-IAS and KPMG IES for close to ten years, in and outside the United States. Then, she established her own practice in Germany, following her move there with her German husband. Her educational background includes Financial and Managerial Accounting, Business Law and International Finance. She also holds a Masters Degree specializing in International Law and International Economics. She has significant experience of working with complex federal and state income tax returns, for all kinds of taxpayers, including employees, business owners, investors and high-net worth individuals. In addition, due to her multi-lingual skills, and her training and experience in one of the World's largest international expatriate tax practices, she is able to work with the tax return
of any foreign country, in preparing a U.S. income tax return.

Carola Olt

Staff Accountant

Carola has many years experience of accounting and bookkeeping. She has a Diplom-Betriebswirtin from the Berufsakademie where she concentrated her studies on

Accounting and Controlling. She assists with the preparation of tax returns

and Treasury forms and is multi-lingual.

Sumiko Ragland

Tax Return Preparer & E-File Principal

Sumiko worked for many years with the Financial Industry Regulatory Authority (FINRA). Before joining FINRA, she also worked for PricewaterhouseCoopers-IAS in Tokyo, processing U.S. tax returns for client delivery. She is currently training to be an Enrolled Agent and spends some time during the busy seasons volunteering for the IRS by assisting taxpayers at IRS tax

centers in Texas with the preparation of their tax returns. She is multi-lingual.

Susanne Lorenzini

Staff Assistant

Susanne has many years experience in the investment banking sector and has a special understanding of currency transactions, investment products and financial statements.

She assists with various administrative tasks, preparation of tax returns

and Treasury forms. She is multilingual.

Elefterios Sidiropoulos 

Admin Support

We have student(s) with international backgrounds and multilingual skills

supporting our office with various administrative tasks.

Ingo Hanke

Business Development

Ingo is involved with strategy and compliance, acquisitions and key accounts.


Tel: 06101-995-3959 or 06101-995-0235

Fax: 06101-995-3958

An der Kirche, 61118 Bad Vilbel, Germany