Where can I get an IDP?
Presently, the RAC issues the 1949 version of the IDP, alongside the Post Office, however from 1st February 2019, you will only be able to get IDPs from the Post Office.
The RAC will not issue IDPs from this date.
If you currently have a 1949 IDP, this will remain valid until the date it expires.
You will be able to apply for all three types of IDP (1949, 1968 and 1926) at 2,500 Post Offices across the UK. The UK Government will announce which Post Office branches will offer IDPs in early 2019.
The Government anticipates that 90% of the UK population will be no more than 10 minutes away from a Post Office issuing IDPs.
How long will the process take?
Getting an IDP over a Post Office counter takes around five minutes on a turn-up-and-go basis.
How much does an International Driving Permit cost?
A single IDP will cost £5.50
What about if I drive to Spain via France where 2 types of IDP may be required?
You may need to purchase both the 1949 and the 1968 versions of IDPs, costing £11
What if you are hiring a vehicle abroad?
You may also need an IDP to hire a vehicle when you are abroad, alongside your UK driving licence. You will need to check with the rental company but it may be a wise precaution to get an IDP anyway.
Should I get my IDP now, just in case?
If you are travelling in the EU after 29th March 2019, you may wish to purchase a 1949 version from the RAC which will remain valid for 12 months, but this would only be required if you are using a vehicle in Spain, Malta, Ireland or Cyprus after the UK leaves and if no deal is agreed.
Separate arrangements in non-EU/EEA countries will apply.
A 1968 version of the IDP will only be available for purchase from 1st February 2019.
I don’t need an IDP to go to some countries, so why would I need it in the EU?
The UK Government will have existing arrangements with some countries surrounding mutual recognition of driving licences.
Within the EU presently, UK driving licences are governed by the Directive of the European Parliament and of the Council on driving licences.
In the event of a no-deal Brexit, pre-existing agreements on licence recognition may then apply.
What if I plan on moving to an EU country?
The UK Government states “If, after exit day, you become resident in an EU country you would not have the automatic right under EU law to exchange your UK licence for a driving licence from the EU country you’re living in. Depending on the laws of the EU country you move to, you may need to take a new driving test in that country.
You can avoid this by exchanging your UK driving licence for one from the EU country you move to or live in before 29 March 2019.
UK licence holders who do this, will be able to re-exchange for a UK licence if they return to live in the UK.”
Will I require any additional vehicle insurance documents?
In the event of a no-deal Brexit, the Government announced on the 24th September that drivers hiring or taking their vehicle abroad post-Brexit would need to carry a Green Card as proof of third party motor insurance cover when driving in the EU, EEA, Andorra, Serbia and Switzerland.
Motorists should speak to their insurance company if they are driving in these states from the 29th March and the UK has left the EU without a deal.
Source : https://www.rac.co.uk/drive/travel/driving-abroad/international-driving-permits-and-brexit