Entry, Exit and Visa RequirementsSpain is a party to the Schengen Agreement. This means that U.S. citizens may enter Spain for up to 90 days for tourism or business without a visa. Your passport should be valid for at least three months beyond the period of stay.
When will ETIAS be necessary to travel from the UK to Spain? ETIAS will become obligatory for UK travellers in 2025. The system is scheduled to go live and become mandatory from that time onwards.
If you are a non-EEA national (including British) and wish to stay in Spain for longer than 90 days, you will need a visa. You should apply for the visa that suits your purpose from a Spanish Consulate in your home country.
For the avoidance of any confusion, most EU nations are members of the Schengen area, which comprises 26 countries, but not all of the countries in Europe are members of the EU. That is why only European citizens from the 26 Schengen nations can enter Spain without a visa and stay for 90 days.
Spain currently does not have any plans of changing the 90-day rule. Technically, this rule is not under Spanish jurisdiction, as it is a rule that applies to the whole Schengen Area. So even if Spain wanted to change this rule, the change can only be initiated by authorities of the European Union.