Practice Overview


Grassi & Co. recognizes that in today's global market, international opportunities can be the key to growth for many clients. Our internal expertise, coupled with our membership in Moore Stephens, allows us to assist clients doing business virtually anywhere in the world.

Our International Accounting Practice consists of professionals who have significant experience in providing attestation, tax and consulting services for foreign corporations as well as U.S. entities doing business abroad.

We understand that operating in a global environment while trying to understand the intricacies of doing business in multiple jurisdictions can impact your operations. Our professionals will leverage their experience and expertise to become your trusted international business consultants and assist you in achieving your international business objectives.

Grassi & Co.'s International Practice Team has extensive knowledge and experience with:

  • Financial audits
  • SOX consulting
  • S-1 registrations
  • U.S. subpart F tax regimes
  • Foreign tax credit planning
  • Section 367 regulations
  • U.S. trade income concepts and income tax treaties
  • Foreign withholding tax efficiencies
  • Termination of U.S. trade or business status
  • Tax planning and preparation for expatriates, non-resident aliens with US sourced income and dual status residents.
  • M&A Due Diligence
  • Transfer Pricing
  • Valuations

Files & links

Doing Business in the U.S. Guide

Moore Stephens International member firms provide this overview


Timothy R. Larson Partner, International Tax Services Leader
Paolo Siniscalco Founder and Managing Partner of Siniscalco & Partners
Rocco Totino Partner

Press release

Grassi & Co. Welcomes Tim Larson as International Tax Partner

Grassi & Co. is proud to announce that Tim Larson has joined the Firm as an International Tax Partner based out of the New York City office.


Articles & Alerts

EAlert: The Time is Coming to Bid Farewell to OVDP

The IRS announced on March 13th its intention to end the 2014 Offshore Voluntary Disclosure Program (“OVDP”) on September 28, 2018. Many tax practitioners knew this was inevitable but didn’t know when it would happen.



Una commissione unificata di Camera e Senato USA ha trovato un accordo su un testo unico di riforma fiscale federale. La legge deve ancora essere approvata sia dalla Camera che dal Senato per poi passare alla firma del Presidente Trump. Gli ultimi sviluppi suggeriscono ampie possibilita’ che questo avvenga durante questa settimana (tra Martedi’ e Mercoledi’).


Proposta Riforma Fiscale USA

Il 2 Novembre 2017, il Ways and Means Committee della Camera dei Deputati Americana ha presentato la propria proposta di riforma di legge  in ambito fiscale.

You may share a link to this page on any of the sites listed below: