Confidence that comes with knowing your US tax return and ongoing accounting needs are expertly handled. That’s what Westmusa has provided to Nordic corporate and individual clients since its founding in 1993 by leading international tax advisor Ann-Christine Westerlund and her husband, M.E. Mousa.
With our unique understanding of both US and Nordic tax regulations, Westmusa provides customized accounting and tax preparation, including fully compliant US tax returns that save you money.
President Ann-Christine Westerlund is fluent in English, Swedish and Finnish – for easy, accurate and fast communication. Accounting Manager Victor Westerlund, based in Raseborg, Finland, adds Nordic presence.
It started with Stevie Wonder. The global superstar performed in Finland in 1984, and Ann-Christine Westerlund of Ernst & Young Helsinki was assigned to determine whether Mr. Wonder was obliged to pay taxes in Finland. Ann-Christine studied the US-Finland tax treaty and found it interesting – so much so that she decided to specialize in US-Nordic taxes during a stellar 14-year career at Ernst & Young that saw her rise to Partner in 1986. In 1990 Ann-Christine moved to the US and founded the Ernst & Young Scandinavian Tax Desk at the firm’s International Tax Department in New York. Ann-Christine led the Desk for three years and emerged as a leading international tax advisor.
In 1993 Ann-Christine co-founded and launched Westerlund & Mousa (later Westmusa) inpartnership with her husband, acclaimed media executive M.E. Mousa. The new firm brought to life Mousa’s concept of “an international tax advisory that provides expert tax returns and accounting services to Nordic companies and individuals in the USA.” Over the ensuing 25 years under Ann-Christine’s leadership Westmusa rose to become a premier tax return preparation and advisory firm serving a “who’s who” of Nordic companies and individuals. Ann-Christine’s deep understanding of both Nordic and US tax regulations and her fluency in English, Swedish and Finnish make her and the Westmusa staff uniquely qualified to prepare your US tax returns and advise you on US-Nordic tax-related questions.
A leading light in the Nordic community in New York, Ann-Christine is an active member of leading Nordic-American professional organizations and the International Taxation Committee, New York State Society of CPAs. A lover of sport and the outdoors, Ann-Christine has completed numerous marathons and half-marathons, including the New York, Helsinki, Stockholm and Rotterdam marathons.
Tax & Accounting Manager
Skill, energy, and a winning attitude. These are the qualities Victor Westerlund contributes as a member of elite SM-liiga handball team BK-46… and they’re the same qualities he brings to the Westmusa team. Victor is fluent in English, Swedish and Finnish. He based in Raseborg, Finland, providing helpful Nordic presence, complemented by frequent visits to Westmusa’s New York City headquarters. Now in his nineth year with Westmusa, Victor works closely with Ann-Christine Westerlund to provide the expert, customized tax and accounting service that sets Westmusa apart. Victor holds a B.S. degree in Finance and Financial Management Services from Arcada University of Applied Sciences.
M.E. Mousa, Co-Founder, Westmusa, Inc.
“An international tax advisory that provides expert tax returns and accounting services to Nordic companies and individuals in the USA.”
That was the business concept M.E. Mousa conceived in the early 1990’s after an exemplary 28-year media career, including service as International Advertising & Media Director at Al-Ahram newspaper in Cairo and New York. In 1993 Mousa convinced his wife, Ann-Christine Westerlund, a partner at Ernst & Young in Finland and the USA, to join forces and together launch Westerlund & Mousa, later incorporated as Westmusa, Inc.
Mousa handled marketing for the new organization, enabling Ann-Christine to focus almost exclusively on client service. Mousa also inspired Ann-Christine as she met and overcamethe challenges associated with starting a client service business in hyper-competitive New York City. Over the years Ann-Christine has emerged as a leading international tax advisor and Westmusa’s client list has grown to include a “who’s who” of Nordic clients. Yet Mousa’s original business concept, vision and support remain at the center of it all.
Mousa was particularly skilled in connecting people and business. In 1991 he was honored by the US Department of State for his success promoting US-Middle Eastern businesses. After retirement, Mousa became an accomplished nature photographer. His work has been exhibited at prestigious shows in New York, Finland, Aruba, and at Miami Art Week. Mousa’s work also serves as the leitmotif for this website.
View selected works from the M.E. Mousa gallery at Art upCLOSE.