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You work with me on your tax situation, with continuity as your circumstances change.
About Costa
A personal CPA relationship for the practical and technical questions that come with an international life.
I am a U.S. Certified Public Accountant with more than 20 years of tax and accounting experience, including work at a Big Four accounting firm and in corporate finance.
Since 2014, I have operated a fully remote CPA practice providing U.S. tax preparation, cross-border planning, and ongoing advisory to clients in the United States and around the world.
Much of my work is with expats living in the U.S. who retain businesses, bank accounts, investments, and real estate overseas. I also advise Americans living abroad and internationally mobile business owners and investors.
Having grown up in a family that relocated internationally every few years, I bring a personal perspective to the choices and challenges that accompany life across borders.

The working relationship
You work with me on your tax situation, with continuity as your circumstances change.
We agree the work, responsibilities, and fees before the engagement begins.
Advice considers your residence, business, investments, and objectives alongside annual reporting.
Working across jurisdictions
I identify the U.S. tax implications and the foreign-country questions that call for local advice. Your country of residence can affect the analysis of a business, investment, or proposed transaction.
If you already work with an advisor in the relevant country, we can discuss coordination as part of the engagement. The responsibilities, permissions, and scope are established before information is shared or joint work begins.
A discovery call gives us a starting point for your tax preparation, planning, or advisory engagement.
Schedule a discovery callComplimentary 15-minute introduction | Continue to Proton Calendar