Double Taxation Relief Manual: Guidance by country: France: Agreements
The comprehensive agreement (SI 2009/226) entered into force on 18 December 2009 and has effect In the United Kingdom from 1 April 2010 for corporation tax and from 6 April 2010 for income tax and capital gains tax. It is effective in France from 1 January 2010.
A previous agreement (SI 1968/1869) applied until those dates.
If using the HMRC Intranet, the new agreement can be viewed through the “New treaties/protocols in force” link on the sidebar. On the HMRC web-site, searching for “France” will provide a link to the treaty.
The text of the Tax Treaty can be found via https://www.gov.uk/government/publications/france-tax-treaties