Australia Business Day Calculator
Last reviewed: October 14, 2026 · Holiday data: August 26, 2026
Calculate business days in Australia with the eight national public holidays of the Fair Work Act 2009 preselected: New Year's Day, Australia Day, Good Friday, Easter Monday, Anzac Day, the King's Birthday, Christmas Day and Boxing Day. Every other public holiday, and every weekend substitute, comes from State or Territory law, so for a deadline in one place use that state's page below.
How Australian Business Days Are Defined
Section 115(1)(a) of the Fair Work Act 2009 lists eight national public holidays, and the calculator counts Monday to Friday without them. The same section leaves every further public holiday to State and Territory law, and when a holiday falls on a weekend any substitute day comes from that law too (s 115(2)). The calculator's national data adds a weekday only where Christmas Day, Boxing Day or New Year's Day falls on a weekend, marked (additional), and moves Australia Day to the Monday when 26 January is a Saturday or Sunday, as Victoria's Public Holidays Act 1993 does (s 6(c)).
Commonwealth law defines a business day by place. Section 9 of the Corporations Act 2001 defines it as a day that is not a Saturday, a Sunday or a public holiday or bank holiday in the place concerned, so a state holiday such as Victoria's Melbourne Cup Day, the first Tuesday in November, can move a deadline that this national calendar does not. The state pages below add each jurisdiction's own days.
Sources for these rules
- Fair Work Act 2009 (compilation of 7 July 2026), s 115(1)(a): the eight national public holidays; s 115(1)(b) and (2): further days and substitutes under State or Territory law (Federal Register of Legislation)
- Public Holidays Act 1993 (Vic), authorised version 027, s 6: (c) Australia Day or the Monday after when it falls on a Saturday or Sunday; (i) the second Monday in June; (j) the first Tuesday in November (Melbourne Cup Day) (Victorian Legislation (Office of the Chief Parliamentary Counsel))
- Corporations Act 2001 (compilation of 19 September 2026), s 9: business day means a day that is not a Saturday, a Sunday or a public holiday or bank holiday in the place concerned (Federal Register of Legislation)
Checked October 8, 2026. All sources
Australian National Public Holidays
The eight national public holidays (Fair Work Act 2009, s 115(1)(a)):
- New Year's Day (1 January)
- Australia Day (26 January)
- Good Friday
- Easter Monday
- Anzac Day (25 April)
- King's Birthday (the calculator uses the second Monday in June)
- Christmas Day (25 December)
- Boxing Day (26 December)
The Act puts the King's Birthday on the day each State or Territory celebrates it, and those days differ. Victoria's is the second Monday in June (Public Holidays Act 1993, s 6(i)), the date the calculator uses. Easter Saturday and Easter Sunday are State and Territory holidays, on the state pages, not national ones. How we determine holidays →
Sources for these dates
- Fair Work Act 2009 (compilation of 7 July 2026), s 115(1)(a): the eight national public holidays; s 115(1)(b) and (2): further days and substitutes under State or Territory law (Federal Register of Legislation)
- Public Holidays Act 1993 (Vic), authorised version 027, s 6: (c) Australia Day or the Monday after when it falls on a Saturday or Sunday; (i) the second Monday in June; (j) the first Tuesday in November (Melbourne Cup Day) (Victorian Legislation (Office of the Chief Parliamentary Counsel))
- The Anzac Day tradition: one of Australia's most important national occasions, marking the anniversary of the first major military action fought by Australian and New Zealand forces during the First World War (Australian War Memorial)
Checked October 8, 2026. All sources
Common Use Cases in Australia
The Corporations Act 2001 counts a number of its deadlines in business days, which section 9 ties to the public and bank holidays of the place concerned. The Australian Consumer Law counts business days for unsolicited consumer agreements, whose termination period runs to the tenth business day after the agreement was made; its consumer-guarantee remedies of repair, replacement or refund run instead to a reasonable time (s 259(2)).
Sources for these rules
- Corporations Act 2001 (compilation of 19 September 2026), s 9: business day means a day that is not a Saturday, a Sunday or a public holiday or bank holiday in the place concerned (Federal Register of Legislation)
- Competition and Consumer Act 2010, Schedule 2 (Australian Consumer Law): the termination period of an unsolicited consumer agreement ends on the tenth business day after it was made; s 259(2): a remedy within a reasonable time (Federal Register of Legislation)
Checked October 8, 2026. All sources
Sources and verification
Official source: Fair Work Ombudsman (fairwork.gov.au) (opens in a new tab)
Cross-checked against this source on August 26, 2026.
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
What are Australian national public holidays?
Does Australia have different holidays by state?
When is ANZAC Day?
How many business days are in an Australian working year?
What if Australia Day falls on a weekend?
Australia business days by month
Working-day counts, calendar grids, and Australian national holidays for each of the next 13 months.