Currently, there is no requirement for Britons travelling to the bloc to have a minimum or maximum amount of time left on their passports before they expire.
March 29, 2019 could be the deadline for drivers to use a United Kingdom driving license in countries like Spain.
This comes after the UK Government published a technical notice in relation to passports, informing British passport holders what they need to do should they wish to continue travelling to European Union countries with a UK passport in the unlikely event of the UK leaving the European Union without a deal.
Although the United Kingdom is not a member, British citizens are now able to enter the Schengen area if they have a valid passport, and there is no requirement to have a certain amount of time left before expiry, the Home Office guidance says.
Most EU countries are signed up to the Schengen Agreement, which allows passport-free travel.
Papers on driving licences, passports and phone bills are among the 30 or so technical notices that the government will release on Thursday, after the cabinet holds a special three-hour meeting to consider no-deal preparations in a discussion to be led by Brexit secretary, Dominic Raab.
Adult British passport holders planning to travel to the Schengen area after 29 March 2019 must make sure their passport is no older than nine years and six months and has at least six months validity remaining on the date of arrival.
'If your passport does not meet these criteria, you may be denied entry to any of the Schengen area countries, and you should renew your passport before you travel'.
In such a scenario, the passport holder would not be able to use the expiry date to check if it would be valid under the new rules.