For travel to Spain in 2026, your passport must be valid for at least six months beyond your intended date of departure from the Schengen Area (though the legal minimum is 3 months, most airlines and border agents enforce 6 to be safe). Your passport must also have been issued within the last 10 years and contain at least two blank pages for entry and exit stamps. For U.S., British, Canadian, and Australian citizens, no visa is required for stays under 90 days within a 180-day period. However, a major change starting in 2026 is the requirement for ETIAS (European Travel Information and Authorization System). This is a mandatory electronic travel authorization that you must apply for online before your trip. It costs €7 (for those aged 18–70) and is valid for three years. Additionally, Spanish border police may ask for proof of a return ticket, evidence of sufficient funds (approx. €113 per day), and confirmation of accommodation (hotel booking or a formal letter of invitation).