Business Days in December 2028 for Australia
December 2028 has 19 business days under the Australian national holiday calendar. December 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
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
1 | 2 wknd | 3 wknd | ||||
4 | 5 | 6 | 7 | 8 | 9 wknd | 10 wknd |
11 | 12 | 13 | 14 | 15 | 16 wknd | 17 wknd |
18 | 19 | 20 | 21 | 22 | 23 wknd | 24 wknd |
25 Christmas Day | 26 Boxing Day | 27 | 28 | 29 | 30 wknd | 31 wknd |
public holidays in December 2028
Australia December deadlines
December 25 (Christmas Day) and December 26 (Boxing Day) close banks and the ASX. December 21 BAS for monthly remitters covers November activity. Quarterly PAYG and BAS for the September quarter were due late October; finance teams use December for accrual review ahead of the January return cycle.
Day-of-week distribution
The count of each weekday in December 2028. Useful for shift scheduling, weekly recurring billing, and any rota that depends on a specific weekday landing in-month.
| Day | Count |
|---|---|
| Monday | 4 |
| Tuesday | 4 |
| Wednesday | 4 |
| Thursday | 4 |
| Friday | 5 |
| Saturday | 5 |
| Sunday | 5 |
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.
December 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 December 2028.
| Country | Business Days | Holidays this month |
|---|---|---|
| 🇺🇸United States | 20 | Christmas Day |
| 🇬🇧United Kingdom | 19 | Christmas Day, Boxing Day |
| 🇨🇦Canada | 19 | Christmas Day, Boxing Day |
| 🇦🇺Australia (this page) | 19 | Christmas Day, Boxing Day |
| 🇮🇳India | 20 | Christmas Day |
| 🇵🇭Philippines | 19 | Feast of the Immaculate Conception, Christmas Day |
| 🇫🇷France | 20 | Noël |
| 🇩🇪Germany | 19 | Erster Weihnachtstag, Zweiter Weihnachtstag |
| 🇯🇵Japan | 21 | None |
| 🇲🇽Mexico | 20 | Navidad |
| 🇸🇬Singapore | 20 | Christmas Day |
How December 2028 compares year over year
December 2027 had 21 business days, so December 2028 has 2 fewer working days year over year. On the surrounding months, November 2028 has 22 business days and January 2029 has 21. Looking forward, December 2029 has 19 business days under the same Australian national holiday calendar.
Using this calculator in Australia
A Sydney merchant bank uses the 19-day December 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.