Our History

Gilbert Allen & Co has a proud history stretching back to it’s formation in 1932. Our heritage provides clients and prospects alike with a rare assurance of expertise and unrivalled experience. Over the years, we’ve moved with the times and with the ever-changing needs of the business world, maintaining successful, long relationships with key clients and continually developing new ones.

Our dedicated team provides taxation, trust and charity expertise, as well as auditing services and full accounts preparation.

Here are a few key milestones in the GA journey!



Firm founded.


Founder Gilbert Allen takes a stockbroker client to the Savoy for Vodka Martinis.


John Duncan, current proprietor, joins the firm as a qualified accountant.


John becomes a partner.


The firm moves to it’s current office in Tonbridge, Kent.


The firm takes on 3 ex-BDO accountants and increases turnover 46%!


Rebrand and all new, responsive website launches.

For highly complex or unusual tax issues we have a number of specialists at hand who we can consult: