
About TaxAssist Accountants
Born in 1995, TaxAssist Accountants has grown from a single office to a global network of over 400 locations in the UK in Ireland, serving over 100,000 clients. We take pride in being the largest network of accountants dedicated to empowering independent businesses and individuals navigating their tax returns.
Franck Sidon FFA FIPA established the Chiswick office in 2010, and we have been dedicated to serving private clients and small businesses from this location since. We also have branches in Richmond and Ealing. While Franck still works in the business, the company is now run by his son Michael Sidon MA(Cantab), CTA who joined the practice in 2019.
Our Expertise
With years of experience in the field, our team comprises seasoned professionals who bring a wealth of knowledge and a proactive approach to every client interaction. Our expertise spans a wide range of services including:
- Tax Compliance and Planning: We offer comprehensive tax services to ensure you are compliant with all regulations while optimizing your tax position.
- Accounting and Bookkeeping: Our meticulous bookkeeping and accounting services are designed to keep your financials in order, allowing you to focus on growing your business.
- Private Client Services: When it comes to personal tax our wealth of cross border expertise comes in handy. Whether you are an expatriate, a non-resident, or have cross-border interests, our team is adept at navigating the complexities of international tax laws. We can ensure that you remain compliant while maximizing your tax efficiency, providing peace of mind no matter how complex your personal situation might be.
Why Choose Us?
- Personalized Service: We treat each client with the attention and dedication they deserve, offering customized solutions that fit their unique circumstances.
- Expert Team: Our team of certified professionals brings extensive experience and a deep understanding of tax laws and accounting principles.
- Innovative Solutions: We leverage the latest technologies and best practices to provide efficient, effective, and forward-thinking financial solutions.
- Commitment to Excellence: We are dedicated to maintaining the highest standards of service, ensuring that our clients receive the best possible advice and support.
- Bilingual Support: We have a signification number of French speaking clients, and we pride ourselves on our bilingual accountants fluent in both English and French. This ensures clear and effective communication with our diverse clientele, allowing us to serve a broader range of clients with varying linguistic needs.

Our Locations
We are based in Chiswick with satellite offices in Richmond and Ealing.
MAIN OFFICE
563 Chiswick High Road
London W4 3AY
phone: +44 20 3397 1520
web: www.taxassist.co.uk/chiswick
email: chiswick@taxassist.co.uk
RICHMOND OFFICE
Parkshot House, 5 Kew Road
Richmond TW9 2PR
phone: +44 20 3397 1520
web: www.taxassist.co.uk/richmond-central
email: richmond@taxassist.co.uk
EALING OFFICE
Aurora House, 71-75 Uxbridge Rd, Ealing
London W5 5SL
phone: +44 20 3397 1520
web: www.taxassist.co.uk/ealing
email: ealing@taxassist.co.uk
You can find more details about our products and services on our corporate web site at www.taxassist.co.uk/chiswick or by downloading our brochure below. You can also book a free initial consultation directly from our online calendar.
And if you're not the reading type be sure to check our podcast where we discuss various topical tax topics on a regular basis: