Tax returns can be lodged from 1 July, opening a four-month window that runs to the 31 October self-lodgement deadline. 16 July 2028 falls inside the first month of both that window and the financial year that began on 1 July, with most of the tax season still ahead of it.
Any deadline or bill payment due on Sunday 16 July 2028 moves to the following Monday under standard business-day rules, since Sunday sits outside the working week this page counts by default. This convention applies consistently across contracts, invoices and statutory deadlines throughout Australia, regardless of which state or territory is involved.
A public holiday that falls on a Monday or a Friday produces a three-day weekend without using any annual leave, which is why long-weekend planning around 16 July 2028 depends on which day of the week the nearest public holiday falls on. A midweek holiday delivers no such automatic extension, though many workers bridge it with a single day of leave.