Business Days Calculator
Add business days to a date or count working days between dates using your Australian state or territory’s public holidays.
Count
The start date counts only when it is a business day.
Holiday calendar
Every Australian Capital Territory public holiday in this calendar applies across the territory or state. Enter a regional holiday, such as a show day, as an extra non-working day.
These holidays apply only in part of New South Wales, or only to some workers. Tick the ones that apply where you count.
Every Northern Territory public holiday in this calendar applies across the territory or state. Enter a regional holiday, such as a show day, as an extra non-working day.
These holidays apply only in part of Queensland, or only to some workers. Tick the ones that apply where you count.
Every South Australia public holiday in this calendar applies across the territory or state. Enter a regional holiday, such as a show day, as an extra non-working day.
These holidays apply only in part of Tasmania, or only to some workers. Tick the ones that apply where you count.
These holidays apply only in part of Victoria, or only to some workers. Tick the ones that apply where you count.
These holidays apply only in part of Western Australia, or only to some workers. Tick the ones that apply where you count.
Optional. One date per line as DD/MM/YYYY or YYYY-MM-DD, such as a regional show day or an office closure.
Document validity period
The issue date is day 0. Business days use the holiday calendar above.
Results
Correct the marked input to update the count.
Calculated date
5 Jan 2027
5 business days after the start dateCalendar days
12
From the start date to the calculated dateWeekend days skipped
4
Saturdays and SundaysHolidays skipped
3
Public, local and entered days5 business days after 24 Dec 2026 in New South Wales is 5 Jan 2027. The start date is not counted. It skips 4 weekend days and 3 public holidays.
Excluded dates
Each date is skipped once. A holiday on a weekend shows as a weekend day with its holiday name.
| Date | Reason | Holiday |
|---|---|---|
| 25 Dec 2026 | Public holiday | Christmas Day |
| 26 Dec 2026 | Weekend | Boxing Day |
| 27 Dec 2026 | Weekend | |
| 28 Dec 2026 | Public holiday | Additional public holiday for Boxing Day |
| 1 Jan 2027 | Public holiday | New Year's Day |
| 2 Jan 2027 | Weekend | |
| 3 Jan 2027 | Weekend |
Document validity period
Date arithmetic from the issue date. A lender's own policy decides whether a document is still acceptable.
Correct the marked document input to calculate the period.
90 calendar days after the issue date, 15 Oct 2026, is 13 Jan 2027. The period ends 8 calendar days after the calculated date.
Business days are Monday to Friday. The calculator skips the full-day public holidays of the state or territory you choose in 2026 and 2027, as listed by the Fair Work Ombudsman, plus the local holidays you tick and the dates you enter.
Part-day holidays, such as Christmas Eve from the evening, count as business days. Regional holidays apply only when you enter them. Counts must stay within 2026 and 2027.
Your entries stay in this browser. PDF opens your print dialog. CSV lists every date in the count with its status.
Choosing the Counting Rule
The counting rule sets whether the start and end dates count. By default the calculator leaves out the start date, so 5 business days after 24 Dec 2026 in New South Wales is 5 Jan 2027. Tick "Count the start date" and the start becomes day 1, which moves the result to 4 Jan 2027.
Business days are Monday to Friday. The calculator skips weekend days and the chosen state's public holidays, plus any local holidays you tick and extra dates you enter. In this example it skips Christmas Day, the Monday holiday for Boxing Day, New Year's Day and 4 weekend days. The excluded dates table lists each skipped date once with its reason.
To count the business days between two dates, choose "Count between dates". The count leaves out the start date and includes the end date unless you change the boxes. From 24 Dec 2026 to 29 Jan 2027 in New South Wales, there are 22 business days after 10 weekend days and 4 public holidays.
When the start and end are the same date, that date counts only when both boxes are ticked. If the end date comes first, the calculator shows an error rather than counting backwards. To count back from a deadline, use the add calculation with the direction set to "Before the start date". Counting 5 business days before 5 Jan 2027 reaches 24 Dec 2026.
State Holidays and Observed Days
Each state and territory sets its own public holidays, so a business days calculator for Victoria, NSW, Queensland or WA is this calculator with that state selected. The calendars cover 2026 and 2027. They follow the Fair Work Ombudsman's 2026 public holidays list and 2027 public holidays list, which link each state's official calendar.
Observed days are where states differ most. When a holiday falls on a weekend, some states add a weekday holiday and others do not. Anzac Day falls on a Sunday in 2027. One business day after Friday 23 April 2027 is 27 Apr 2027 in New South Wales, Queensland and Western Australia, because each has a Monday holiday. In Victoria it is 26 Apr 2027.
Victoria's calendar includes the Friday before the AFL Grand Final in 2026. The 2027 date follows the AFL fixture, so the calculator flags any Victorian count that reaches late September or early October 2027. Melbourne Cup Day is a tick box, because some regional Victorian areas hold that holiday on another date. Untick it there and enter the local date as an extra non-working day.
Other holidays that apply only in part of a state are tick boxes too. Brisbane's Royal Queensland Show day and Hobart's Regatta and Show days are ticked by default. Some regional WA areas, including Karratha and Port Hedland, hold King's Birthday on a different date. The NSW Bank Holiday starts unticked because it closes banks and certain financial institutions but is not a public holiday.
Christmas Eve is a part-day holiday from 6 pm in Queensland and 7 pm in South Australia and the Northern Territory, which also have a New Year's Eve evening holiday. The calculator counts these days as business days and says so in the result.
Finance Clauses and Follow-Up Dates
The calculator applies the counting rule you select. It does not decide what a finance clause, contract notice or settlement obligation means. A contract can define its own business day and say when a notice period starts and ends, and that wording decides the deadline.
Set the calculator to match the clause: the state whose holidays apply, whether the starting day counts and any other days the contract excludes. Enter those days as extra non-working days. The excluded dates table then shows exactly which dates the count skipped, so you can compare it with the clause.
Local holidays change follow-up dates too. Ten business days after Tuesday 11 August 2026 in Queensland is 26 Aug 2026 with the Royal Queensland Show ticked. Without it the date is 25 Aug 2026, which suits a client outside the Brisbane area.
A clause can also set a time of day for notice, which a date count does not show. When a date decides whether a client can still rely on a finance condition, the solicitor or conveyancer acting on the contract confirms the deadline.
Checking Document Expiry
The document validity period section works out when a period ends from an issue date and a length. Choose calendar days, business days or months to match how the period is written. 90 calendar days after 15 Oct 2026 is 13 Jan 2027. The issue date is day 0, so for a period that counts the issue date as day 1, enter one day less.
Business days use the same holiday calendar as the main count. Five business days after 24 Dec 2026 in New South Wales is 5 Jan 2027, while five calendar days is 29 Dec 2026. Months move to the same date in a later month, or to that month's last day: one month after Sunday 31 January 2027 is 28 Feb 2027.
The result also compares the end of the period with the calculated date above. In the example, the period ends 8 calendar days after 5 Jan 2027, so the stated period still runs on that date.
That end date is arithmetic only. It does not show that an identity document or another supporting document still meets a lender's requirement. The lender's policy sets how recent each document must be and how it measures the period, and the document can carry its own expiry date.