National identity cards are issued to their citizens by the governments of most European Economic Area (EEA) member states, the exceptions are Denmark and Ireland. Ireland however issues a passport card which is a valid document in the EEA and Switzerland. Denmark issues simpler identity cards that are not valid as travel documents. From 2 August 2021, new identity cards are harmonized as a common identity card model replaced the various formats already in use. There are approximately 200 million national identity cards in use in the EU/EEA, including 53 million of the new EU-standard cards. They are compulsory in 14 EU countries, voluntary in 9 countries and in 8 countries they are semi-compulsory (some form of identification required). Where the card is compulsory, in some member countries it is required to be carried at all times, while in other countries the mere possesion of the card is sufficient.

Citizens holding a national identity card, which states citizenship of an EEA member state or Switzerland, can use it as an identity document within their home country, and as a travel document to exercise the right of free movement in the EEA and Switzerland. However, identity cards that do not state citizenship of an EEA member state or Switzerland, including national identity cards issued to residents who are not citizens, are not valid as travel documents within the EEA and Switzerland.

National identity cards in the European Economic Area

Use

Travel document

As an alternative to presenting a passport, EEA and Swiss citizens are entitled to use a valid national identity card as a stand-alone travel document to exercise their right of free movement in the European Economic Area and Switzerland. National identity card ownership in most EU countries and Switzerland is much more widespread than passport ownership.

National identity cards in the European Economic Area

When travelling within the Nordic Passport Union, no identity documentation is legally required by Nordic citizens. When travelling within the Common Travel Area, other valid identity documentation (such as a driving licence) is often sufficient for Irish and British citizens.

National identity cards in the European Economic Area

At present, Denmark and Iceland do not issue identity cards that are valid as travel documents in the EEA member states and Switzerland. Strictly speaking, it is not necessary for an EEA or Swiss citizen to possess a valid national identity card or passport to enter the EEA and Switzerland. In theory, if an EEA or Swiss citizen can prove their nationality by any other means (e.g. by presenting an expired national identity card or passport, or a citizenship certificate), they must be permitted to enter the EEA and Switzerland. An EEA or Swiss citizen who is unable to demonstrate their nationality satisfactorily must, nonetheless, be given 'every reasonable opportunity' to obtain the necessary documents or to have them delivered within a reasonable period of time.

Additionally, EEA and Swiss citizens can enter the following countries and territories outside the EEA and Switzerland on the strength of their national identity cards alone, without the need to present a passport to the border authorities:

Turkey allows citizens of Belgium, Bulgaria, France, Germany, Greece, Hungary, Italy, Liechtenstein, Luxembourg, Malta, Netherlands, Poland, Portugal, Spain and Switzerland. Egypt allows citizens of Belgium, France, Germany, Italy, and Portugal to enter using a national identity card for short-term visits. Tunisia allows nationals of Austria, Belgium, France, Germany, Italy, Luxembourg, Netherlands, Portugal, Spain, Sweden, and Switzerland to enter using a national identity card if travelling on an organized tour. Anguilla, Dominica, Saint Lucia and Jersey allow nationals of France to enter using a national ID card, while Dominica de facto also allows nationals of (at least) Germany and Sweden to enter with a national ID card (as of March 2016). Gambia allows nationals of Belgium to enter using a national ID card. The United Kingdom and the Crown Dependencies only allows EEA (except Irish) and Swiss citizens fulfilling specific requirements to use national identity cards (though to enter at the land border Ireland-Northern Ireland, no specific document requirements apply). Greenland allows Nordic citizens to use any identification document containing a photo, while citizens from the rest of EU/EFTA must carry a passport.

Swedish national law did not recognise the card as a valid travel document outside the Schengen Area, in direct violation of European law, until July 2015, when travel to non-Schengen countries in the EU (but not outside, even if the destination country accepts the ID card) was permitted. Similarly, Finnish citizens cannot leave Finland directly for a non-EU/EFTA country with only their ID cards.