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Business Day Calculator

Business Days in January 2028 for Australia

January 2028 has 19 business days under the Australian national holiday calendar. January 2028 contains 2 Australian national holidays on weekdays. The month covers 31 calendar days, of which 10 are Saturday and Sunday. That count drives invoice cycles, payroll runs, and any contract that defines deadlines as a number of business days in Australia.

business days

19

Calendar Days

31

Weekend Days

10

public holidays

2

Work Weeks

3.8

January 2028 business day calendar
MonTueWedThuFriSatSun
1
wknd
2
wknd
3
New Year's Day (observed)
4
5
6
7
8
wknd
9
wknd
10
11
12
13
14
15
wknd
16
wknd
17
18
19
20
21
22
wknd
23
wknd
24
25
26
Australia Day
27
28
29
wknd
30
wknd
31

public holidays in January 2028

Mon, Jan 3New Year's Day (observed)
Wed, Jan 26Australia Day

Australia January deadlines

January is the Australian summer holiday month and many businesses run a skeleton roster through to mid-month. Australia Day on January 26 closes banks and the ASX. Activity Statements for the December quarter are due February 28 for taxpayers without a tax agent, and quarterly PAYG instalments are due late February.

Day-of-week distribution

The count of each weekday in January 2028. Useful for shift scheduling, weekly recurring billing, and any rota that depends on a specific weekday landing in-month.

DayCount
Monday5
Tuesday4
Wednesday4
Thursday4
Friday4
Saturday5
Sunday5

Australia reporting cycles and business-day rules

Australian business-day cycles run against ATO BAS reporting (monthly remitters by the 21st of the following month, quarterly by the 28th of the next month), ASIC corporate filings, and RBA RITS clearing. The Reserve Bank of Australia operates a two-tier real-time gross settlement window. AUSTRAC threshold transaction reporting follows a 10-business-day window under AML/CTF Act 2006. Single Touch Payroll Phase 2 reporting runs on each pay-event basis but year-end finalisation has a July 14 hard deadline. Public-holiday treatment under Fair Work Act 2009 follows the federal set this calculator uses.

January 2028 business days compared by country

Working-day counts vary across countries because each country observes its own public holidays. The table below puts Australia alongside the other ten supported holiday calendars for January 2028.

CountryBusiness DaysHolidays this month
๐Ÿ‡บ๐Ÿ‡ธUnited States20Martin Luther King Jr. Day
๐Ÿ‡ฌ๐Ÿ‡งUnited Kingdom20New Year's Day (observed)
๐Ÿ‡จ๐Ÿ‡ฆCanada20New Year's Day (observed)
๐Ÿ‡ฆ๐Ÿ‡บAustralia (this page)19New Year's Day (observed), Australia Day
๐Ÿ‡ฎ๐Ÿ‡ณIndia20Republic Day
๐Ÿ‡ต๐Ÿ‡ญPhilippines20Chinese New Year (approximate)
๐Ÿ‡ซ๐Ÿ‡ทFrance21None
๐Ÿ‡ฉ๐Ÿ‡ชGermany21None
๐Ÿ‡ฏ๐Ÿ‡ตJapan20Coming of Age Day
๐Ÿ‡ฒ๐Ÿ‡ฝMexico21None
๐Ÿ‡ธ๐Ÿ‡ฌSingapore19Chinese New Year Day 1 (approximate), Chinese New Year Day 2 (approximate)

How January 2028 compares year over year

January 2027 also had 19 business days, so working capacity is unchanged year over year. On the surrounding months, December 2027 has 21 business days and February 2028 has 21. Looking forward, January 2029 has 21 business days under the same Australian national holiday calendar.

Using this calculator in Australia

A Sydney merchant bank uses the 19-day January 2028 count to align RBA RITS settlement with PEXA property-settlement windows and AusPay-linked PayTo cycles. A Perth mining services controller uses the count to track ATO BAS and PAYG instalment cycles that fall in the same month. A Brisbane construction subcontractor uses business-day math to track Security of Payment Act response windows under each state's regime.

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 2028 for Australia?
January 2028 has 19 business days under the Australian national holiday calendar. The month spans 31 calendar days, of which 10 fall on a weekend and 2 are Australian national holidays that lands on a weekday. The remaining 19 weekdays are countable as business days for invoicing, deadline tracking, and contract math.
Which Australia holidays affect January 2028?
January 2028 contains 2 Australian national holidays: New Year's Day (observed) on Monday, January 3; Australia Day on Wednesday, January 26. Banks and Australia 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 state-specific holidays not in this calendar?
Australian states each set their own holiday calendar under the Public Holidays Act of each jurisdiction. Labour Day falls on different dates in different states (March in WA, May in QLD, October in NSW/SA/ACT). Melbourne Cup Day closes Victorian banks on the first Tuesday in November. The Queen's Birthday (or King's Birthday) shifts by state. This calculator uses only the seven national public holidays observed in every state and territory, which is the conservative baseline for cross-state contracts.
How does Easter Saturday and Easter Sunday affect business days here?
Easter Saturday is a public holiday in NSW, ACT, NT, SA, VIC, and QLD but not WA or TAS. Easter Sunday is a public holiday in NSW, ACT, QLD, SA, VIC, and WA but not NT or TAS. This calculator does not include Easter Saturday or Easter Sunday in the national set because they are not observed in every state. Good Friday and Easter Monday are universal and are included. For NSW-, VIC-, or QLD-specific contracts, add Easter Saturday under Advanced options.
Why does the business-day count vary year to year?
Two things shift the monthly count for Australia. First, the day of the week the first of the month lands on changes the count of each weekday. Second, Australian 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. January 2027 also had 19 business days, so working capacity is unchanged year over year.

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