The Team
About us
A little more about the team at Allen Associates
Jon Allen (Lead Partner)
Jon founded Allen Associates in 2006. He is a Chartered Tax Adviser (a member of the Chartered Institute of Taxation) with over 30 years experience providing UK and US tax advice to individuals and employers in all areas of expatriate taxation. He worked at “Big 4” accounting firms before setting up Allen Associates. He is also a founder member of the Association of Independent Expatriate Tax Practitioners (AIETP).
Scott Cosby (Partner)
Scott joined the business in 2012, and has worked as an expatriate tax advisor for more than 30 years, previously 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 tax and social security exposures are minimised.
Bill Rawlings (Partner)
Bill has over 25 years experience advising on UK and US employer and individual tax and social security issues, having worked in the expatriate tax departments of “Big 4” and mid-tier accountancy firms. He also spent several years working at the in-house tax department of a large multi-national company, dealing with cross-border tax and social security issues relating to international assignees. He specialises in UK and US personal tax compliance, as well as providing relevant planning and advice on all aspects of expatriate personal taxation. He joined Allen Associates in 2015.
Rachel Major (Partner)
Rachel joined Allen Associates in 2019, having trained at a “Big 4” firm, and having spent 15 years working for a boutique expatriate tax advisory firm based in the City of London. She has nearly 25 years of experience advising private client and high net worth individuals on their US and UK personal tax affairs. Rachel is a Chartered Tax Advisor in the UK, and is a US Enrolled Agent.
Gracie Davis (Partner)
Gracie joined Allen Associates in 2022, having spent the previous decade at a mid-tier accountancy firm. She specialises in advising individuals and their employers on international tax and social security issues involving the US and the UK, with a focus on compliance. Gracie is a Chartered Tax Advisor in the UK and is a US Enrolled Agent.
Sarah Taylor (Partner)
Sarah joined Allen Associates in 2025 and has over 20 years of experience advising private clients on their US and UK personal tax affairs. She initially trained at a ‘Big 4’ firm but has spent most of career working for a boutique London expatriate tax team. Sarah is dual US/UK qualified.