Depending on your balance date and GST frequency
March
1 or 2 monthly
28 August
15 January
7 May
6 monthly
28 October
7 May
April
1 or 2 monthly
28 September
28 January
28 May
6 monthly
28 November
28 May
May
1 or 2 monthly
28 October
28 February
28 June
6 monthly
15 January
28 June
June
1 or 2 monthly
28 November
28 March
28 July
6 monthly
28 January
28 July
July
1 or 2 monthly
15 January
7 May
28 August
6 monthly
28 February
28 August
August
1 or 2 monthly
28 January
28 May
28 September
6 monthly
28 March
28 September
September
1 or 2 monthly
28 February
28 June
28 October
6 monthly
7 May
28 October
October
1 or 2 monthly
28 March
28 July
28 November
6 monthly
28 May
28 November
November
1 or 2 monthly
7 May
28 August
15 January
6 monthly
28 June
15 January
December
1 or 2 monthly
28 May
28 September
28 January
6 monthly
28 July
28 January
January
1 or 2 monthly
28 June
28 October
28 February
6 monthly
28 August
28 February
February
1 or 2 monthly
28 July
28 November
28 March
6 monthly
28 September
28 March
No Tax Agent
7 February
With a Tax Agent
7 April
Period ending March is due
7 May
Period ending November is due
15 January