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Business Day Calculator

Business Days in January 2027

January 2027 has 19 business days under the US federal holiday calendar. January 2027 contains 2 US federal holidays. The month covers 31 calendar days, of which 10 fall on a weekend. That count drives invoice due dates, payroll cycles, project sprint planning, and any contract that defines deadlines as a number of working days.

Business Days

19

Calendar Days

31

Weekend Days

10

Holidays

2

Work Weeks

3.8

January 2027 business day calendar
SunMonTueWedThuFriSat
1
New Year's Day
2
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3
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4
5
6
7
8
9
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10
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11
12
13
14
15
16
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17
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18
Martin Luther King Jr. Day
19
20
21
22
23
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24
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25
26
27
28
29
30
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31
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Holidays in January 2027

Fri, Jan 1New Year's Day

Federal offices, the Federal Reserve, the bond market, and the NYSE all close on January 1. Payroll departments commonly shift the December 31 paycheck so direct deposits clear before the holiday, and ACH originations dated for January 1 settle on the next business day.

Mon, Jan 18Martin Luther King Jr. Day

Observed on the third Monday of January under the Uniform Monday Holiday Act. Federal employees, the Federal Reserve, and US equity and bond markets close. State courts and DMV offices generally close. Many private-sector employers offer this as a floating or paid day off rather than a fixed closure.

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 day of the week landing in-month.

DayCount
Monday4
Tuesday4
Wednesday4
Thursday4
Friday5
Saturday5
Sunday5

Business Days in January 2027 by Country

Working-day counts vary by country because each country observes its own public holidays. The table below covers all eleven holiday calendars supported on this site.

CountryBusiness DaysHolidays this month
๐Ÿ‡บ๐Ÿ‡ธUnited States19New Year's Day, Martin Luther King Jr. Day
๐Ÿ‡ฌ๐Ÿ‡งUnited Kingdom20New Year's Day
๐Ÿ‡จ๐Ÿ‡ฆCanada20New Year's Day
๐Ÿ‡ฆ๐Ÿ‡บAustralia19New Year's Day, Australia Day
๐Ÿ‡ฎ๐Ÿ‡ณIndia20Republic Day
๐Ÿ‡ต๐Ÿ‡ญPhilippines20New Year's Day
๐Ÿ‡ซ๐Ÿ‡ทFrance20Jour de l'An
๐Ÿ‡ฉ๐Ÿ‡ชGermany20Neujahrstag
๐Ÿ‡ฏ๐Ÿ‡ตJapan19New Year's Day, Coming of Age Day
๐Ÿ‡ฒ๐Ÿ‡ฝMexico20Aรฑo Nuevo
๐Ÿ‡ธ๐Ÿ‡ฌSingapore20New Year's Day

Notable January Deadlines

January is the busiest month of the tax year for finance and HR teams. W-2s must be furnished to employees by January 31 and 1099-NEC forms to contractors by the same date, with the IRS copy following on the same deadline. Q4 earnings season opens in the middle of the month for the major banks, and state unemployment insurance returns are due at the end of the month in most states.

How January 2027 Compares

January 2026 had 20 business days, so January 2027 has 1 fewer working day year over year. On the surrounding months, December 2026 has 22 business days and February 2027 has 19. Looking forward, January 2028 will have 20 business days under the same federal holiday calendar.

Using This Calculator

A receivables analyst running a Net 30 portfolio uses the 19-business-day count in January 2027 to project cash collections by Friday of each week and to flag invoices whose due dates land on the holidays listed above. A project manager scoping a sprint that starts on the first business day of January uses the calendar grid to slot stand-ups, design reviews, and customer demos onto live working days rather than weekends. A specialty contractor billing time and materials uses the day-of-week distribution to see how many Mondays and Fridays fall in January 2027, which matters for crews who set installation appointments at the start and end of each week and skip Tuesday-to-Thursday for travel-heavy jobs.

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?
January 2027 has 19 business days under the US federal holiday calendar. The month spans 31 calendar days, of which 10 fall on Saturday or Sunday and 2 are federal holidays that lands on a weekday. The remaining 19 weekdays are countable as business days for invoicing, SLA windows, and contract math.
Are there any holidays in January 2027?
January 2027 contains 2 US federal holidays: New Year's Day on Friday, January 1; Martin Luther King Jr. Day on Monday, January 18. Federal offices, the Federal Reserve, and US capital markets close on each of these days. State holidays and bank-specific closures may add additional non-working days for narrower contract definitions.
How does January 2027 compare to January 2026?
January 2026 had 20 business days, so January 2027 has 1 fewer working day year over year. The shift is driven by where weekends and federal holidays fall on the calendar in each year, not by any change in the number of holidays themselves. January 2027 starts on a Friday and January 2026 started on a Thursday, which determines how many of each weekday land in-month.
Why does the business-day count vary year to year?
Two things shift the monthly count. First, the day of the week the first of the month lands on changes the count of each weekday: a 31-day month starting on a Friday produces five Fridays, five Saturdays, and five Sundays, while one starting on a Monday produces five Mondays, five Tuesdays, and five Wednesdays. Second, federal holidays anchored to a fixed date (Independence Day, Veterans Day, Christmas Day) shift their weekday across years; some years the holiday lands on a weekend and the observance moves to the adjacent Friday or Monday, which keeps the business-day count steady but changes which weekday is excluded.
What if I need business days for a different country?
Use the country selector in the calculator above, or visit the dedicated country pages for the United Kingdom, Canada, Australia, India, the Philippines, France, Germany, Japan, Mexico, or Singapore. Each calculator excludes that country's national public holidays. The country comparison table further down this page shows the January 2027 business-day count under each of the eleven supported holiday calendars side by side.

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