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Business Day Calculator

Business Days in January 2027 for Mexico

January 2027 has 20 días hábiles under the Mexican federal holiday calendar. January 2027 contains one Mexican federal holiday on a weekday. The month covers 31 calendar days, of which 10 are sábado and domingo. That count drives invoice cycles, payroll runs, and any contract that defines deadlines as a number of días hábiles in Mexico.

días hábiles

20

Calendar Days

31

Weekend Days

10

días de descanso obligatorio

1

Work Weeks

4.0

January 2027 business day calendar
MonTueWedThuFriSatSun
1
Año Nuevo
2
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3
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4
5
6
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9
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10
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11
12
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16
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días de descanso obligatorio in January 2027

Fri, Jan 1Año Nuevo

Mexico January deadlines

January 17 is the SAT (Servicio de Administración Tributaria) declaración mensual deadline for December activity. CFDI (Comprobante Fiscal Digital por Internet) issuance continues without holiday interruption. IMSS (Instituto Mexicano del Seguro Social) cuotas for December are due January 17. The Banco de México (Banxico) holds a monetary policy meeting in early February.

Day-of-week distribution

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

DayCount
Monday4
Tuesday4
Wednesday4
Thursday4
Friday5
Saturday5
Sunday5

Mexico reporting cycles and business-day rules

Mexican business-day cycles align with SAT declaración mensual deadlines on the 17th of the following month, IMSS cuotas obreras and INFONAVIT bimonthly contributions, and CFDI 4.0 invoice issuance against the buyer's pago timeline. Banxico operates SPEI as a near-real-time interbank clearing system; bank cutoffs typically run to 18:00 local time. The 2006 reform under the Ley Federal del Trabajo moved Día de la Constitución, Natalicio de Benito Juárez, and Día de la Revolución to Mondays, producing predictable three-day weekends. Article 74 governs the seven mandatory federal labor holidays.

January 2027 días hábiles compared by country

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

CountryBusiness DaysHolidays this month
🇺🇸United States19New Year's Day, Martin Luther King Jr. Day
🇬🇧United Kingdom20New Year's Day
🇨🇦Canada20New Year's Day
🇦🇺Australia19New Year's Day, Australia Day
🇮🇳India20Republic Day
🇵🇭Philippines20New Year's Day
🇫🇷France20Jour de l'An
🇩🇪Germany20Neujahrstag
🇯🇵Japan19New Year's Day, Coming of Age Day
🇲🇽Mexico (this page)20Año Nuevo
🇸🇬Singapore20New Year's Day

How January 2027 compares year over year

January 2026 had 21 días hábiles, so January 2027 has 1 fewer working day year over year. On the surrounding months, December 2026 has 22 días hábiles and February 2027 has 19. Looking forward, January 2028 has 21 días hábiles under the same Mexican federal holiday calendar.

Using this calculator in Mexico

A Mexico City-based controller uses the 20-day January 2027 count to align SAT declaración mensual deadlines on the 17th with IMSS cuota cutoffs and INFONAVIT bimonthly remittances. A Monterrey maquiladora uses the count to schedule CFDI 4.0 issuance against monthly closing. A Guadalajara fintech treasury uses días hábiles math to track Banxico SPEI clearing windows and Comisión Nacional Bancaria reporting 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 January 2027 for Mexico?
January 2027 has 20 días hábiles under the Mexican federal holiday calendar. The month spans 31 calendar days, of which 10 fall on a weekend and 1 is a Mexican federal holiday that lands on a weekday. The remaining 20 weekdays are countable as días hábiles for invoicing, deadline tracking, and contract math.
Which Mexico holidays affect January 2027?
January 2027 contains one Mexican federal holiday: Año Nuevo on Friday, January 1. Banks and Mexico 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 are some Mexican holidays observed on Mondays and others on fixed dates?
The 2006 reform to Article 74 of the Ley Federal del Trabajo moved three holidays from fixed dates to Monday observance. Día de la Constitución (originally February 5) is now the first Monday of February. Natalicio de Benito Juárez (originally March 21) is now the third Monday of March. Día de la Revolución (originally November 20) is now the third Monday of November. Día de la Independencia (September 16), Día del Trabajo (May 1), and Navidad (December 25) remain on fixed dates regardless of weekday.
How is presidential transmission day handled here?
December 1 every six years is Día de la transmisión del Poder Ejecutivo Federal, when the new federal executive takes office. This is a labor holiday under Article 74, fraction VII of the LFT for that specific year only. The most recent transmission was December 1, 2024 (the start of Claudia Sheinbaum's term); the next is December 1, 2030. This calculator's Mexico data includes December 1 for transmission years and excludes it for non-transmission years, consistent with banking-sector practice.
Why does the business-day count vary year to year?
Two things shift the monthly count for Mexico. First, the day of the week the first of the month lands on changes the count of each weekday. Second, Mexican federal 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. January 2026 had 21 días hábiles, so January 2027 has 1 fewer working day year over year.

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