About Us

Allen Associates was set up by Jon Allen in 2006 and became a Limited Liability Partnership in 2010.

 Jon is a Chartered Tax Adviser (a member of the Chartered Institute of Taxation) with over 20Jon for website years experience providing UK and US tax advice to individuals and employers in all areas of expatriate taxation. He spent 13 years of this time working in the expat tax departments of “Big 4” accounting firms before leaving to set up Allen Associates. He is also a member if the Association of Independent Expatriate Tax Practitioners (AIETP).



In 2012 Jon was joined by Scott Cosby. Scott has worked as an expatriate tax advisor for more than 20 years, working primarily for “Big 4” and Mid-tier accountancy firms.  He specialises in delivering practical and helpful US and UK tax advice to international assignees and their employers.  Scott has considerable experience in tax compliance matters, and also in providing pre-assignment planning to ensure that all tax and social security exposures are minimised.








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