From the 1st January 2021, EU laws and agreements previously implemented in the UK no long stand, unless they have been included in the Withdrawal Agreement. At the present time, no such undertaking has been made for the provision of UK driving licences.
The rules and regulations are different according to your status in France, for the moment.
If you are resident in France at the moment and you arrived in the country before 1st January 2021, then your driving licence is still valid to drive on in France, but only until 31st December 2021. There is a hope that there will be an agreement between the UK and the EU on this matter. There are cases of people who have seen their driving licences run out and there is no way of renewing them in the UK, since the holders of those expired licences are no longer resident in the UK. Under normal circumstances, the UK driving licence should be exchangeable for a French driving licence. This is being negotiated and we will keep you posted on changes. They will have to come to an agreement, otherwise many will be stranded and unable to drive, which is not going to happen.
If you're a tourist in France, then you can simply drive on your UK licence and you don't need to have an international driving licence.
If you arrived in France after 31st December 2020, then your driving licence will be valid until 31st December 2021.
In order to make the changes a form will have to be filled in. The applicant needs to have a valid French telephone number and email address.
All French forms are notoriously difficult to fill in with pages and pages of details that would put even the hardiest of people off. We can do it for you and make life easier.
We will keep you up to date on any changes here on the French Admin Blog, but you can see the link to the UK Government website with details about driving licences for all EU member countries post-Brexit.