Spain Business Day Calculator

The Spanish rules this page cites do not count days the same way, and the calculator follows the administrative one. Article 30.2 of Ley 39/2015 says that, unless a law or European Union law sets another count, a period set in days counts días hábiles, leaving out Saturdays, Sundays and declared holidays. Article 30.6 adds that a day which is a holiday where the interested party lives but not at the seat of the authority, or the reverse, is inhábil in every case, so a regional or local holiday at either end can move a deadline that a national calendar does not. Labour law draws a different week: article 37.1 of the Estatuto de los Trabajadores guarantees a weekly rest of a day and a half, as a general rule Saturday afternoon or Monday morning plus all of Sunday, so a Saturday can be a working day under an employment contract.

Court periods run on stricter rules. Under articles 182 and 183 of the Ley Orgánica del Poder Judicial, Saturdays, Sundays and national, regional and local labour holidays are inhábiles, and so is every day of August and every day from 24 December to 6 January, except for proceedings the procedural laws declare urgent. The calculator does not apply the August or Christmas closures. For tax deadlines, the AEAT's 2026 taxpayer calendar says that one which falls on a local or regional holiday ends on the next día hábil, except Modelo 369, whose filing period does not move. The stock exchange keeps a calendar of its own: for 2026 BME declared 5 non-trading days (1 January, 3 April, 6 April, 1 May and 25 December), so the market is open on 6 January, 12 October and 8 December 2026, days that are in the calculator's set.

The set the calculator excludes, by name:

• Año Nuevo (1 de enero)
• Epifanía del Señor (6 de enero)
• Viernes Santo (variable)
• Día del Trabajo (1 de mayo)
• Asunción de la Virgen (15 de agosto)
• Fiesta Nacional de España (12 de octubre)
• Día de Todos los Santos (1 de noviembre)
• Día de la Constitución (6 de diciembre)
• Inmaculada Concepción (8 de diciembre)
• Navidad (25 de diciembre)

Nine of these are national holidays that no comunidad autónoma can replace (article 45.1, letters a to c, of Real Decreto 2001/1983). Epifanía is one of the letter d days, national too, that a community may replace with a traditional holiday of its own (article 45.3), and in the BOE lists for 2024, 2025, 2026 and 2027 none did. Jueves Santo is a letter d day as well: in those lists every territory marks it except Cataluña and the Comunitat Valenciana, and both of them mark Lunes de Pascua as a holiday of their own. So neither Jueves Santo nor Lunes de Pascua is in the calculator's set, although the BOE marks Jueves Santo as a national holiday in the other territories. When a national holiday falls on a Sunday its rest day moves to the Monday (article 45.2), but each community may replace that Monday with a holiday of its own (article 45.3), so those Mondays sit in the community calendars and not here. For years after 2027 the calculator carries the same 10 days, which assumes every territory keeps Epifanía again, until the Dirección General de Trabajo publishes each year's list in the BOE. How we determine holidays →

Where the contract fixes no payment date, Ley 3/2004 sets the period at 30 días naturales after the goods are received or the services provided (article 4.1), lets the parties extend it by agreement to no more than 60 días naturales (article 4.3), and puts the statutory interest rate, absent an agreed one, at the rate of the European Central Bank's most recent main refinancing operation before the half-year plus 8 percentage points (article 7.2). The ministry publishes each half-year's rate in the BOE (article 7.3). The Late Payment Interest Calculator has no row for Spain: its EU row applies the ECB main refinancing rate on 1 January or 1 July plus 8 points and shows the interest and the total owed. The Invoice Due Date Calculator counts Net 30 and Net 60 from the invoice date and, with the Spain calendar selected, flags a due date that lands on a weekend or on one of these holidays and shows the next business day.