20 Years of International Tax Experience


​Alicea Castellanos, CPA, TEP, N.P.


​​Alicea has more than 15 years of experience.  She specializes in U.S. tax planning and compliance for non-U.S. families with international wealth and asset protection structures which include foreign trusts, estates and foundations that have a U.S. connection; and executives living and working abroad.

Alicea also specializes in foreign investment in U.S. real property, and other U.S. assets, pre-immigration tax planning, U.S. expatriation matters, U.S. persons in receipt of foreign gifts and inheritances, foreign accounts and assets compliance, offshore voluntary disclosures, FATCA registration, and foreign companies wanting to do business in the U.S.

Alicea has been published and spoken at numerous events on U.S. cross border tax matters.


Alicea is fluent in Spanish and has a working knowledge of Portuguese.

Email: acastellanos@iwtas.com 

Jack Brister, TEP


​Jack has more than 25 years of experience.  He specializes in U.S. tax planning and compliance for non-U.S. families with international wealth and asset protection structures which include foreign trusts, estates and foundations that have a U.S. connection; and foreign companies wanting to do business in the U.S.

Jack also specializes in foreign investment in U.S. real property, and other U.S. assets, pre-immigration tax planning, U.S. expatriation matters, U.S. persons in receipt of foreign gifts and inheritances, foreign accounts and assets compliance, offshore voluntary disclosures, FATCA registration, executives working and living abroad and annual reporting.

Jack is a noted expert in his field and has been widely published, in addition to speaking at numerous international engagements, Jack has also been named a Citywealth Top 100 US Wealth Advisor.


Email: jbrister@iwtas.com   


We represent international families, individuals, and offshore wealth structures with a U.S. connection, foreign investors in U.S. real property, and foreign business entities wanting to do business in the U.S.  Our clients reside in the U.S. and abroad and generally have U.S. and foreign tax reporting obligations. 

The types of clients that seek our services are looking for experts in tax planning and compliance matters such as the declaration of foreign financial accounts and assets under one or more taxing regimes, persons desiring to expatriate or immigrate to the U.S., beneficiaries and settlors of foreign trusts and civil law structures (usufruct and foundations) foreign persons investing in U.S. real property, persons seeking to submit a voluntary disclosure, persons receiving large foreign gifts, entities needing to obtain a GIIN and provide annual FATCA reporting as result of having U.S. clients or investing in the U.S., foreign businesses wanting to do business in the U.S. and foreign business executives working and living abroad.


Our team of experts have extensive international tax experience with some of the largest global accounting firms.

About International Wealth Tax Advisors LLC

U.S. cross-border tax services has been our focus for over 20 years.  We understand how complex and trying the U.S. worldwide tax system can be for persons and multi-national families from common law, civil law and Sharia law jurisdictions, as well as those working abroad and foreign companies wanting to do business in the U.S.  It can be very inciting for those benefiting from a non-U.S. trust or civil law foundation structure, investing in U.S. real property, wanting to reside or immigrate to the U.S.


Foreign wealth and investment structures and their underlying entities can be very provoking, especially as it relates to foreign trusts, investments in U.S. real property, foreign financial asset reporting, foreign financial account disclosures, and U.S. FATCA. 

We will work with you and your family advisors to understand your unique situation and establish a comprehensive tax strategy suited to your specific situation.  We will provide options and thoroughly explain each so you can make decisions that are most appropriate for you, your family or business.