Mary Beth Lougen, EA, USTCP

Mary Beth Lougen has over 30 years of US Income Tax experience, working both in the United States and in Canada.  Being a dual Canadian/ US citizen who has lived on both sides of the border and personally dealt wit the rigors of tax filing as a US Expat, Beth is in tune with the challenges and concerns faced by all her clients. After seeing too many people with significant tax issues caused by preparers with a lack of knowledge in the field of cross border taxation, Beth opened American Expat Tax Services to make quality expat tax preparation available to everyone.

Mary Beth carries the title Enrolled Agent which is the highest credential given out by the IRS. She is a U.S. Tax Court Practitioner, and also a respected writer and teacher in cross-border taxation.

In her previous position with a major tax firm, Mary Beth was a customer-focused innovator, who provided key support, training, and quality assurance to both company and franchise tax professionals working within the Expat Tax program.  While supporting the development of the Expat Tax program; she created training for US tax theory, software and company policies and procedures.  She also provided year-round support by researching and interpreting tax laws, tax treaties, and regulations. In addition, she supported field associates in their understanding of the complexities of tax laws and treaties, as well as, international situations through evaluation, education and providing quality control.

As an exceptional researcher, Mary Beth constantly monitors the ever changing US tax law and regulations to keep her team abreast of the latest developments enabling a broader understanding of international taxation, domestic taxation, and tax treaty interpretation.

Beth’s progressive experience in US international taxation and reporting, coupled with her hands on leadership is a proven combination to provide clients with a confidence that their tax needs are being met with professionalism and integrity.

Feel free to drop Beth a note or a question at


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