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USS TAX provides U.S. and Swiss tax consulting and compliance services.  We place special emphasis on reliable and individualized consulting advice and our U.S. and Swiss tax experts work in conjunction to support your particular needs.  

We provide a wide range of U.S. and Swiss tax services, however the core aspect of our business is providing simultaneous U.S. and Swiss tax services to any U.S. and Swiss cross-border transfers.  Please refer to our services section to review a complete list of our service offerings.  Whether you are an American living and working in Switzerland, a Swiss living and working in the U.S., or just a domestic U.S. or Swiss taxpayer, we can help you with your tax needs!  

Our tax experts have many years of consulting and compliance experience and will support you in all aspects of your tax matters.






"Michael completed our US taxes this year and did a tremendous job all at a much lower cost than that of the previous service.  Michael is located in Atlanta GA, USA We were able to communicate very well online as well as conveniently transfer tax information via a secure sharefolder.  He also visits Switzerland a couple of times a year for individuals that wish to meet person to person. Michael also has a partner in Switzerland that assists with Swiss taxes.  They make a good pair and we don't have to duplicate information.  We are very pleased with our returns this year and I highly recommend them."


"Thanks for the expert and personable service on tax filings!"
Rigile A.

"I am have been very pleased with the service of USS Tax. Michael and Markus have been great in providing superior service. They are very personable and it is refreshing to work with them. They both have been extremely helpful and appreciate their service with my U.S. and Swiss tax returns. Their prices are fair and would definitely recommend them to anyone who needs tax service when dealing with multiple country combinations."

Amy C.

"Strong expertise and great communication. Look forward to doing business again."
Adam B.

It has taken me fourteen years to find a CPA whose work actually instills confidence and gives me peace of mind. 
After an extensive search and speaking with several CPAs, my decision to work with Michael was very easy.  Michael was extremely easy to talk to and his ability to convey his knowledge in a way that was easy for me to understand immediately put my mind at ease.
Michael quickly pointed out several recent changes to tax laws that would benefit my situation and lowered my overall tax obligation.
I am happy to recommend Michael Gottschalk to you without any reservation and to give him the highest praise.

Alison B.
Walnut Creek, CA

"Let me repeat that I highly appreciate your insistence and reminders. Some people might mind it, but I actually appreciate it a lot. I have a very busy schedule, and having the confidence that you and Markus keep an eye out and are on top of things makes me feel comfortable that things are being taken care of."

George C.

"I found the service very professional, and timely."

Brian A.

about us



Markus is a co-founder and Swiss Tax Partner for USS TAX. Prior to co-founding USS TAX, Markus worked as a Tax Manager for PwC in their International Assignment Services (or Human Resource Services later) practice, and has over 17 years experience providing expatriate tax services to individuals and companies.  He was responsible for the delivery of a complete range of services including tax compliance and consulting, cost reduction strategies, international employee benefits and payroll consulting.
Markus made his commercial apprenticeship at the communal authorities of Muttenz. After 7 years he worked within the bookkeeping for two different companies, he worked 3 years for the tax department at the community of Muttenz, Basel-Landschaft before he started his career at PwC as a Senior Tax Consultant.



USS TAX is managed by a U.S. Partner and a Swiss Partner who have 40 combined years of experience providing U.S. and Swiss tax compliance and consulting services. We offer carefully researched, relevant advice to meet your financial and tax needs. Our clients come to us from a wide range of disciplines.



Transparency - Without it, we would never be able to earn your trust.

Respect - Every client, employee, and partner will be treated with respect.

Understanding - We value relationships and promise an attentive ear.

Service - It starts with a professional, positive and warm, can-do attitude.

Thoroughness - Our commitment to ongoing learning and leveraging



Quality, experience, commitment and the clients' trust form the foundation of our success.



Michael is a co-founder and U.S. Tax Partner for USS TAX. He has over 23 years of experience providing tax and accounting services to various individuals and companies. Prior to co-founding USS TAX, Michael served in Management and Director positions at Ernst & Young and PwC.


He has been responsible for the delivery of a complete range of services including tax compliance and consulting, cost reduction strategies, employee benefits planning, payroll consulting, and retirement planning. Michael also has extensive experience providing tax, payroll and compensation services for U.S. expatriates and U.S. foreign nationals. Michael also brings a personal perspective to the expatriate tax process, having served on international work assignments in the UK and Switzerland.


Michael holds two of the most highly respected professional certifications in the accounting and finance industry. He is a CERTIFIED FINANCIAL PLANNER™ and Certified Public Accountant.


Michael is also an active member of the American Institute of Certified Public Accountants and Georgia Society of Certified Public Accountants. Michael received his B.A. in Business Economics from the University of California at Santa Barbara. Michael lives in Atlanta, Georgia with his wife and 2 boys and enjoys playing and coaching sports, reading, and traveling. Michael is also the Owner of MH Gottschalk, LLC a U.S. based full service Tax and Consulting firm.






technology ensures quality work.


Preparation of Swiss Federal, Cantonal and Communal Income and Wealth Tax Returns
Estimated Tax Calculations
Tax Return Extensions
Tax Equalization and Hypothetical Tax Calculations
Tax Consultations and Tax Planning
Income Tax Treaty Planning
Assistance with Tax Authority Correspondence and Notices
Withholding Tax Assistance
Payment Advice

If you are a Swiss Resident or you perform any duties in Switzerland, you generally have a Swiss tax filing obligation. You still might have an obligation to file a Swiss income tax return when you are abroad if you own a property in Switzerland.

We can meet with you to provide a thorough analysis of your situation and provide the necessary advice to ensure you comply with the tax laws.  In addition, we will take into account all current tax and business factors to provide effective consulting advice to minimize your global tax liabilities.




Individual Tax Returns

Gift & Estate Tax Returns

Trust Tax Returns

State & Multi-State Tax Returns

Tax Return Extensions

Estimated Tax Calculations




Tax Planning, Equity Planning, and Optimization

Tax Consultations

Pension and Profit Sharing Plan Optimization

Payroll Consulting and Withholding Tax Assistance

Estate and Gift Tax Planning


U.S. Expatriate and U.S. Foreign National Tax Returns

Tax Equalization Calculations

Foreign Bank Account Reports

Report of Foreign Corporations (Form 5471)

Expatriate Payroll and Withholding Tax Assistance

Analysis of Income Tax Treaties

International Assignment Cost Projections

Cross-border Tax Planning

Social Security Planning and use of Totalization Agreements



Assistance with Tax Authority Correspondence and Notices Representation during Tax Authority Audits


us services
swiss services




8150 High Hampton Chase

Alpharetta, GA 30022

Tel: +1 (0) 770 331 1311

Fax: +1 (0) 678 623 5206


Click Here to Find Us


Obrechtstrasse 2
CH-4132 Muttenz
Phone or Fax: +41 (0) 61 461 97 31



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For any general inquiries, please fill in the following contact form:

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