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Business Day Calculator

Business Days in December 2027 for Spain

December 2027 has 21 días laborables under the Spanish national holiday calendar. December 2027 contains 2 Spanish national holidays on weekdays. The month covers 31 calendar days, of which 8 are sábado and domingo. That count drives invoice cycles, payroll runs, and any contract that defines deadlines as a number of días laborables in Spain.

días laborables

21

Calendar Days

31

Weekend Days

8

días festivos

2

Work Weeks

4.2

December 2027 business day calendar
MonTueWedThuFriSatSun
1
2
3
4
wknd
5
wknd
6
Día de la Constitución
7
8
Inmaculada Concepción
9
10
11
wknd
12
wknd
13
14
15
16
17
18
wknd
19
wknd
20
21
22
23
24
25
Navidad
26
wknd
27
28
29
30
31

días festivos in December 2027

Mon, Dec 6Día de la Constitución
Wed, Dec 8Inmaculada Concepción

Spain December deadlines

Día de la Constitución (December 6), Inmaculada Concepción (December 8), and Navidad (December 25) close banks. Modelo 111 for November is due December 20. Year-end accruals cluster. The IBEX 35 trades a half-day on December 31. SEPA Credit Transfer and TARGET2 close on Christmas Day with reduced staffing.

Day-of-Week Distribution

The count of each weekday in December 2027. Useful for shift scheduling, weekly recurring billing, and any rota that depends on a specific day of the week landing in-month.

DayCount
Monday4
Tuesday4
Wednesday5
Thursday5
Friday5
Saturday4
Sunday4

Spain reporting cycles and business-day rules

Spanish business-day cycles align with AEAT Modelo 111 (employer monthly IRPF withholding) deposit on the 20th of the following month, Modelo 303 (IVA) on the 20th (or 30th for annual filers), and the IRPF Renta personal income tax filing window typically April through June. The Banco de España operates TARGET2 for euro wholesale settlement and SNCE/Iberpay for SEPA Credit Transfer cycles on bank business days. The Estatuto de los Trabajadores governs employment cycles. Modelo 200 (Impuesto sobre Sociedades, corporate tax) is due by July 25 for calendar-year entities. Regional fiestas vary by Comunidad Autónoma.

December 2027 días laborables compared by country

Working-day counts vary across countries because each country observes its own public holidays. The table below puts Spain alongside the other ten supported holiday calendars for December 2027.

CountryBusiness DaysHolidays this month
🇺🇸United States21Christmas Day (observed), New Year's Day 2028 (observed)
🇬🇧United Kingdom21Christmas Day (observed), Boxing Day (observed)
🇨🇦Canada21Christmas Day (observed), Boxing Day (observed)
🇦🇺Australia21Christmas Day (observed), Boxing Day (observed)
🇮🇳India23None
🇵🇭Philippines20Feast of the Immaculate Conception, Rizal Day, New Year's Eve
🇫🇷France23None
🇩🇪Germany23None
🇯🇵Japan23None
🇲🇽Mexico23None
🇸🇬Singapore23None

How December 2027 compares year over year

December 2026 also had 21 días laborables, so the working capacity is unchanged year over year. On the surrounding months, November 2027 has 21 días laborables and January 2028 has 20. Looking forward, December 2028 has 18 días laborables under the same Spanish national holiday calendar.

Using this calculator in Spain

A Madrid corporate treasurer uses the 21-day December 2027 count to align Banco de España TARGET2 settlement with AEAT Modelo 111 (employer IRPF withholding) on the 20th and Modelo 303 (IVA) on the 20th or 30th. A Barcelona law firm uses días laborables to track Ley General Tributaria recurso de reposición windows and SS/Seguridad Social remittance cycles. A Valencia consulting firm uses business-day math to align Modelo 130 (autónomos quarterly IRPF) and Modelo 200 (Impuesto sobre Sociedades) corporate tax deadlines.

For informational purposes only

This calculator provides general estimates based on business day counting rules. It does not constitute legal advice. Deadlines in legal, regulatory, or contractual matters may be subject to jurisdiction-specific rules, court orders, or statutory exceptions. Always verify critical deadlines with a qualified professional.

Frequently Asked Questions

How many business days are in December 2027 for Spanish national?
December 2027 has 21 días laborables under the Spanish national holiday calendar. The month spans 31 calendar days, of which 8 fall on a weekend and 2 are Spanish national holidays that lands on a weekday. The remaining 21 weekdays are countable as días laborables for invoicing, deadline tracking, and contract math.
Which Spain holidays affect December 2027?
December 2027 contains 2 Spanish national holidays: Día de la Constitución on Monday, December 6; Inmaculada Concepción on Wednesday, December 8. Banks and Spain financial markets close on each of these days. Regional or industry-specific closures may add further non-working days for narrower contract definitions; layer them into the calculator's Advanced options if needed.
Why does the Spanish calendar vary year-to-year?
The Spanish national fiestas laborables are set by Real Decreto each year, with up to 14 holidays consisting of 9 nationally-fixed (e.g., Año Nuevo, Día del Trabajo, Asunción, Día de la Constitución, Navidad), 2 Comunidad Autónoma-set (regional), and 2 municipality-set days. This calculator uses only the national-fixed set; regional and municipal holidays vary widely (Catalonia observes Sant Jordi on April 23; Andalusia observes Día de Andalucía on February 28; the Basque Country observes Día del País Vasco). For region-specific contracts, add the regional dates under Advanced options.
How does Sunday observance work for Spanish national holidays?
When a Spanish national fiesta falls on a Sunday, the Comunidades Autónomas may declare the following Monday as the substitute holiday, but this is not automatic under national law and varies by autonomous community and by year. This calculator does not preemptively shift Sunday-falling national holidays; check the Real Decreto for the specific year and region. The Constitución, Día de Todos los Santos, and major Catholic fixed-date holidays are commonly shifted by regional decree when they fall on Sunday.
Why does the business-day count vary year to year?
Two things shift the monthly count for Spain. First, the day of the week the first of the month lands on changes the count of each weekday. Second, Spanish national holidays anchored to a fixed date shift their weekday across years. Some years a fixed-date holiday lands on a weekend; some countries shift the observance to an adjacent weekday and some absorb it into the weekend. December 2026 also had 21 días laborables, so the working capacity is unchanged year over year.

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