GST & BAS

Practice preview. Not sent to the tax office. GST on Income and GST Free lines still change the boxes below. You can switch quarter and mark a period as prepared.

Upcoming BAS

28/10/2026

1 Jul 2026 – 30 Sep 2026

Period ends in 9 days · due in 37 days

Period end 30/09/2026 · approximate quarterly due (28th after quarter end)

Countdown

37days

until due date

This is a preview calendar for planning. HyperionInvoices does not lodge with the ATO — any “prepared” status below is a simulated lodgement for your records only.

BAS due dates

Australian quarterly calendar (approx. 28th of the month after quarter end). Demo preview — not an official ATO schedule for your ABN.

1 Jan 2026 – 31 Mar 2026
Period end 31/03/2026
28/05/2026
Past (demo)
1 Apr 2026 – 30 Jun 2026
Period end 30/06/2026
28/07/2026
Past (demo)
1 Jul 2026 – 30 Sep 2026
Period end 30/09/2026
Period ends in 9 days · due in 37 days
28/10/2026
Next due
1 Oct 2026 – 31 Dec 2026
Period end 31/12/2026
Weekend — may shift to next business day
28/02/2027
Upcoming
1 Jan 2027 – 31 Mar 2027
Period end 31/03/2027
28/05/2027
Upcoming

Due dates use the 28th of the month after quarter end as a demo approximation. If that day is a weekend or public holiday, the ATO may allow the next business day — confirm on ato.gov.au for your situation. Demo calendar only; not an official ATO schedule.

Current period draft

1 Jul 2026 – 30 Sep 2026 (Q1)

Draft preview — prepared, not lodged with the ATO

Due 28/10/2026

Demo sample quarter label — GST boxes still roll up from listed invoices & bills.

Net GST (preview)

$975.18

From listed demo invoices & bills

GST amounts below roll up from GST on Income sales lines and GST on Expenses purchase lines on listed documents. GST Free income/expense lines do not add to these GST boxes.

GST on Income: $1,270.00
GST on Expenses: $294.82
PAYG withheld: Not calculated

5 invoices · 5 bills in this roll-up

Does not file with the ATO. Saved in this browser so a refresh keeps the simulated mark.

Recent periods

Sample quarter history — Q1 matches the listed-doc roll-up above; earlier quarters are demo labels, not ATO lodgement receipts.

1 Jul 2026 – 30 Sep 2026 (Q1)
Draft preview — not lodged · due 28/10/2026
$975.18
Net GST preview
1 Apr 2026 – 30 Jun 2026 (Q4)
Demo period — not lodged · due 28/07/2026
$2,320.00
Net GST preview
1 Jan 2026 – 31 Mar 2026 (Q3)
Demo period — not lodged · due 28/04/2026
$2,160.00
Net GST preview

Need a wider view? Open Reports for profit & loss and balance sheet previews (also not ATO-lodged).