Tax returns can be lodged from 1 July, opening a four-month window that runs to the 31 October self-lodgement deadline. 9 July 2030 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.
Tuesday 9 July 2030 carries no recurring public holiday of its own outside the first Tuesday of November, when the Melbourne Cup applies in metropolitan Melbourne. On every other date, this day of the week runs as a standard working day across the country, counted fully in the working-day total above.
The working-day count on this page excludes both weekend days and any public holiday declared for the state selected, so the same date in 2030 can show a different total depending on which state's calendar applies to 9 July. Interstate businesses need to check more than one state's list before setting a national deadline.