There’s no substitute for personal attention, and that’s our commitment to you.

Ann-Christine Westerlund, President

Photos by Westmusa co-founder M.E. Mousa


WESTMUSA is an expert tax and accounting firm serving companies and individuals from the Nordic countries and beyond. With deep understanding of both Nordic and US tax law, Westmusa prepares fully compliant US tax returns that minimize your tax bill and provides expert advice on US-Nordic tax related questions. Westmusa is based in New York City.

Why Westmusa

We listen to your needs and objectives, and carefully review your current and recent accounting statements and tax returns.

We apply our expertise to your specific accounting and tax situation and recommend the customized service package just right for you.

We submit a fully compliant US tax return that reflects our deep understanding of both US and Nordic tax regulations and saves you money.

We serve as your expert tax and accounting services partner, to ensure your accounting and tax reporting are cost-efficient and compliant.

Westmusa is a reliable and experienced partner in the U.S. market. We value the firm’s willingness to tailor a service package that fits us and will grow with us.

Kristiina Helenius, Director, North America, Nordic West Office

I am very grateful for the service and help from Westmusa, Inc, which made my years in New York much easier both in terms of tax issues and good advice in other areas. The service was always fast, friendly and correct, and I highly recommend Westmusa, Inc.

Peter Fellman, Editor In Chief, Dagens Industri

As an individual tax advisory customer for already 10 years, I can highly recommend the services of Westmusa in international tax matters.

Maarit Bystedt, Director, Corporate Communications, Nasdaq Helsinki

Professional, proactive, friendly service. Always pleased with the results.

Olli Herrala, Journalist, Finnish Business Daily

A diminutive and modest powerhouse of a networker and professional. It seemed that she knew everyone and still does, of the Nordic community in the USA.

Katarina Holm-DiDio, Principal & Coach, KHD Consulting

Thanks again for the excellent service! This was a fast and smooth process.

Jussi Lemilainen, Operator Business Segment Lead,
Wireless Devices & Operators, Keysight Technologies, Inc

Westmusa has prepared my taxes for the last couple of years and the partnership has been amazing – their expertise, attentiveness, and service are exceptional and I’m looking forward to many more years of partnership

Lina Hagström, Head of Brand Marketing, Smartley