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Q2 BAS Survival Guide for the Christmas Quarter

Last reviewed: 2026-06-15BAS & GST

Q2 BAS Survival Guide for the Christmas Quarter

Short answer: your Q2 BAS covers 1 October to 31 December and is due 28 February. That is a longer gap than the other quarters because of the holiday period, so the trick is to quarantine the GST and PAYG you collect over a spendy Christmas, keep December income and expenses in the right quarter, and not let the extra time lull you into forgetting the date.

The October to December quarter is a strange one for business. For some it is the busiest, most profitable stretch of the year. For others it is quiet, with bills still landing while customers disappear on holidays. Either way, the books do not pause - and once January rolls around, the Q2 BAS is waiting.

The good news: the Christmas quarter comes with a bit more breathing room than the others. Here is how to get your December-quarter BAS done without the new-year stress, with the dates and traps that matter for St George businesses.

When is the Q2 BAS due?

The quarter 2 BAS covers 1 October to 31 December, and it is due 28 February.

That is a longer gap than the other quarters - the ATO already builds in extra time to account for the holiday period, which is why Q2 lands on 28 February rather than 28 January. (The two-week online-lodgment concession that applies to some quarters does not extend the Q2 date - 28 February already includes the holiday allowance.) If a registered BAS or tax agent lodges for you, different - often later - dates may apply through their lodgment program.

Even with the extra time, the smart move is to get organised in January rather than leaving it to the last week of February. For the full quarterly calendar, see our guide to quarterly BAS due dates, or our BAS and GST services.

Managing GST over the holidays

The Christmas quarter often has unusual cash movements - bonuses, gift cards, end-of-year sales, deposits for January work. A few things to keep straight:

  • Match GST to the right quarter. GST is reported based on your accounting method (cash or accruals). Make sure December income and expenses land in Q2, not bleeding into January.
  • Customer deposits and gift cards can have specific GST timing - if you took a lot of these, flag it for us.
  • Entertainment and gifts. Staff parties, client gifts and hampers have particular GST and deductibility rules. Keep the receipts and a note of who they were for.

PAYG over a tricky cash-flow period

Your BAS also reports PAYG withholding (the tax you held back from employee wages) and, if you have one, your PAYG instalment toward your own income tax.

The challenge is timing. You may have paid out Christmas wages, bonuses and leave in December, then faced a quiet January - and the BAS payment falls due in late February. Plan for it:

  • Set aside the GST and PAYG you have collected so it is there when the BAS is due. It was never your money to spend.
  • If cash is genuinely tight, do not just skip lodging. Lodge on time and talk to the ATO (or us) about a payment arrangement - penalties and interest are far worse than asking for help.
  • Forecast your January-February cash now so February's payment is not a shock. Our business advisory team can help you build a simple cash-flow plan.

Common Q2 BAS mistakes to avoid

  • Spending the GST you collected. It is the most common trap over a spendy quarter. Quarantine it.
  • Claiming GST on things that have none - bank fees, most residential rent, some insurance stamp duty, and purchases from suppliers who are not registered for GST.
  • Wrong quarter. Holiday-period invoices dated 31 December versus 1 January can land in the wrong BAS if you are not careful.
  • Forgetting to lodge a nil BAS. Even if you had no activity, you usually still need to lodge.
  • Missing the date because of the long gap. The extra time lulls people into forgetting - put 28 February (or your online/agent date) in the calendar now.

Frequently asked questions

When exactly is the December quarter BAS due? The Q2 BAS (1 October to 31 December) is due 28 February - the ATO already builds the holiday period into that date. Lodging through a registered BAS or tax agent may give you a later date again under their lodgment program.

I cannot pay my BAS by the due date - what do I do? Still lodge on time, then arrange a payment plan with the ATO or ask us to help. Lodging on time and paying late is much better than not lodging at all.

Do I need to lodge if I had no sales over the holidays? Usually yes - if you are registered for GST you generally need to lodge a "nil" BAS even when there was no activity for the quarter.

How do I keep enough cash aside for the February payment? Set aside the GST and PAYG you collect as it comes in - a separate bank account works well - so the money is there in late February rather than spent over Christmas. If it is still tight, lodge on time and ask the ATO (or us) about a payment plan. We can also help you forecast your January-February cash through our business advisory service.

Beat the February rush

Get your Christmas-quarter BAS sorted early and start the year on the front foot. MJE Business Services has been preparing and lodging BAS for St George businesses - Mortdale, Hurstville, Kogarah, Oatley and Penshurst - since 2000. Call (02) 9580 1167 or get in touch and we will take the BAS off your plate.

Written by the team at MJE Business Services, a registered tax agent (No. 26313222) serving the St George area since 2000.

This is general information, not personal advice. Tax rules and dates change - please check your situation with us or at ato.gov.au.

Sources (ATO)

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