- The Business Activity Statement (BAS) for the April–June 2026 quarter is due on 28 July 2026.
- Directors of companies that have not lodged their BAS within three months of the due date face a lockdown Director Penalty Notice (DPN) — a debt that cannot be avoided even by placing the company into voluntary administration or liquidation.
- Lodging the BAS on time — even if you cannot pay — preserves your ability to use the 21-day non-lockdown DPN window and avoids the lockdown trap.
- Payday Super commenced 1 July 2026: the ATO is also now scrutinising superannuation guarantee compliance alongside PAYG, creating compounding director liability risk.
- Directors who seek legal advice before 28 July 2026 have significantly more options than those who wait until a DPN arrives.
The Business Activity Statement (BAS) for the April–June 2026 quarter is due on 28 July 2026. For many company directors, this is an administrative due date — something handled by the bookkeeper or accountant without much thought. For directors of companies that have been under financial pressure throughout FY2026, it is far more than that.
Missing this deadline — or worse, failing to lodge at all — triggers a chain of ATO enforcement consequences that can result in the entire company tax debt becoming your personal debt. Not the company’s. Yours.
This article explains exactly what is at stake for directors of financially stressed companies, what the ATO can and will do after 28 July 2026, and the specific steps you need to take before that date.
What Is the June Quarter BAS and Why Does It Matter?
A Business Activity Statement is the report companies lodge with the Australian Taxation Office to account for GST collected and paid, PAYG withholding (tax withheld from employee wages), and PAYG instalments. For most companies on a quarterly reporting cycle, the four annual BAS lodgement dates are:
- Q1 (July–September): Due 28 October
- Q2 (October–December): Due 28 February
- Q3 (January–March): Due 28 April
- Q4 (April–June): Due 28 July
The June quarter BAS — due 28 July 2026 — covers the period April 1 to June 30, 2026. It is the final BAS of the 2025–26 financial year.
For a company trading normally with no cash flow issues, this is routine compliance. For a company that struggled through FY2026, the June quarter BAS is the last opportunity to get the reporting right before the ATO’s end-of-year enforcement processes begin — and it is the trigger point for some of the most aggressive personal liability provisions in Australian tax law.
The Lockdown DPN: Why Lodging Late Is Catastrophic for Directors
The Director Penalty Notice regime is the ATO’s most powerful tool for recovering unpaid company tax debts from individual directors. Under the Taxation Administration Act 1953 (Cth), if a company fails to pay PAYG withholding or GST, the ATO can issue a DPN to each director personally — making them liable for the debt.
There are two fundamentally different types of DPN, and which one applies depends on whether the company has lodged its BAS.
Non-Lockdown DPN (21-Day Window)
If the company has lodged its BAS on time (or within three months of the due date) but has not paid the tax owing, the ATO issues a non-lockdown DPN. When a director receives a non-lockdown DPN, they have 21 days to avoid personal liability by taking one of four steps:
- Pay the company’s debt in full;
- Appoint an administrator (place the company into voluntary administration);
- Appoint a small business restructuring practitioner; or
- Appoint a liquidator (have the company wound up).
The 21-day window gives directors options. Voluntary administration preserves the business while a DOCA is explored. Small business restructuring is available for companies with liabilities under $1 million. Even liquidation, while painful, at least avoids the director personally wearing the debt.
Lockdown DPN — The Debt You Cannot Escape
A lockdown DPN arises when the company has not lodged its BAS within three months after the due date. In this situation, the director’s personal liability is locked in. No amount of voluntary administration, restructuring, or liquidation can relieve it. The debt transfers to the director personally and can be pursued just like any other personal tax debt — including garnishee of wages, seizure of assets, and bankruptcy.
This is the rule that changes everything for directors of struggling companies. It is not the failure to pay that creates lockdown liability — it is the failure to lodge. A company that lodges its BAS but cannot pay the tax owing keeps the non-lockdown DPN options open. A company that does not lodge — even if the director intended to — faces lockdown liability from the moment the three-month window closes.
The three-month lockdown clock for the June quarter BAS:
- BAS due: 28 July 2026
- Three-month lockdown trigger: 28 October 2026
- Directors who have not lodged by 28 October 2026 face lockdown DPN liability for all PAYG withholding and GST from the June quarter.
But here is the critical point: the ATO does not wait until October. In FY2025–26, the ATO issued more than 84,000 Director Penalty Notices — a 136% increase from prior years. The ATO’s enforcement posture has shifted from reactive to proactive. Directors should expect DPNs to arrive weeks after the deadline, not months.
New in FY2026–27: Payday Super Adds Another Layer of Personal Risk
From 1 July 2026, Payday Super requires employers to pay Superannuation Guarantee (SG) contributions on the same day as wages — or within one business day. This is a fundamental change from the previous quarterly SG payment cycle.
For directors, Payday Super adds a new dimension of personal liability risk running alongside the BAS cycle. Under the existing SG regime, directors of companies that fail to pay SG obligations can face personal liability through a separate instrument — the SGC (Superannuation Guarantee Charge) — which also feeds into the DPN regime.
A director of a company that:
- Failed to lodge the June quarter BAS by 28 July 2026; and
- Has legacy unpaid SG from FY2026 that was not addressed before 1 July 2026; and
- Has not implemented Payday Super-compliant processes for FY2026–27
…faces compounding personal liability on multiple fronts simultaneously. The ATO’s end-of-financial-year review processes typically begin in August. A director who has not sorted these issues before then is likely to face enforcement action across multiple obligation types at once.
Five Mistakes Directors Make With the June Quarter BAS
In advising directors through ATO enforcement action, these are the most common errors that turn a manageable situation into a personal liability crisis.
Mistake 1: Not Lodging Because You Cannot Pay
This is the most dangerous mistake — and the most common. Directors who know the company cannot pay the BAS liability often reason that lodging without payment will just trigger faster enforcement. The opposite is true. Not lodging converts a non-lockdown DPN into a lockdown DPN. Lodging preserves your options. Not lodging eliminates them.
Mistake 2: Assuming the Accountant Has It Covered
Directors are personally liable for BAS lodgement under the tax law — not the accountant, not the bookkeeper. If you are not certain that the June quarter BAS has been lodged, verify it. A simple check with your accountant or on the ATO Business Portal takes minutes. The consequences of assuming it has been handled and being wrong can follow you for years.
Mistake 3: Resigning to Avoid Liability
Resignation after the BAS liability has accrued does not protect you. The DPN regime captures directors who were in office at any time during which the obligation arose. A director who resigned after 1 April 2026 but before the June quarter BAS was due may still be personally liable for PAYG withholding from the April–June period. Resignation is not a defence once the liability has attached.
Mistake 4: Waiting for the DPN to Arrive Before Seeking Advice
Once a DPN arrives, the 21-day clock starts immediately. Directors who seek legal advice for the first time when a DPN lands are already running behind. The options available in the 21-day window — voluntary administration, small business restructuring, liquidation — each require planning, creditor management, and sometimes emergency applications. None of them can be executed well in 21 days without preparation. Advice before the BAS due date gives directors weeks to plan; advice after the DPN arrives gives them 21 days.
Mistake 5: Treating BAS Debt and SG Separately
With Payday Super now live, PAYG withholding and SGC exposure now run on effectively parallel tracks. Directors who address the BAS without also addressing their SG position are leaving half the problem unsolved. The ATO increasingly pursues both simultaneously.
What to Do Before 28 July 2026: A Six-Step Director Checklist
If your company has had a difficult FY2026, here is what you need to do — now, before the 28 July deadline.
Step 1: Confirm whether the June quarter BAS will be lodged on time.
Contact your accountant or tax agent today. Confirm the June quarter BAS (April–June 2026) is being prepared and will be lodged by 28 July 2026. If they need the company’s GST and PAYG figures, provide them immediately. Do not let a data gap cause a lodgement failure.
Step 2: Assess what is owed.
Know the numbers. What does the company owe in GST and PAYG withholding for the June quarter? What legacy unpaid ATO debt exists from prior quarters? What is the total ATO exposure? You cannot make good decisions without knowing the full picture.
Step 3: Check your SG position.
Has the company paid all SG contributions for FY2026? If not, calculate the shortfall. Consider whether a voluntary disclosure to the ATO is appropriate — the SGC is calculated differently from ordinary SG (it cannot be paid into super funds directly once due, and penalty rates apply), but early engagement typically produces better outcomes.
Step 4: Assess the company’s solvency position honestly.
If the company cannot pay its debts as and when they fall due — including its ATO debts — you may already be in the zone of insolvent trading under section 588G of the Corporations Act 2001 (Cth). The insolvency analysis needs to be done by a professional. If the company is insolvent or approaching insolvency, there are structured options available — but only if you act before, not after, the enforcement action starts.
Step 5: Get legal advice before the deadline.
Directors facing significant ATO debt — whether or not a DPN has arrived — should speak to a lawyer experienced in insolvency and director duties before 28 July 2026. The options available today (voluntary administration, small business restructuring, payment arrangements, safe harbour) are significantly broader than the options available after a lockdown DPN has issued.
Step 6: Consider whether a payment arrangement is viable.
The ATO does negotiate payment plans for companies that engage early and in good faith. A payment arrangement does not extinguish the DPN risk, but it can pause ATO enforcement action while the company stabilises. Your accountant or lawyer can manage this negotiation. The ATO is more receptive to payment plan requests before a deadline than after it.
How Boss Lawyers Can Help
Boss Lawyers regularly advises directors who are navigating ATO debt, Director Penalty Notices, and company insolvency — often in circumstances where the clock is already running. We act for directors across commercial litigation, insolvency, and director dispute matters and understand exactly what options are available at each stage of the ATO enforcement process.
Whether you need advice on your personal DPN exposure, an assessment of your company’s solvency position, or representation in voluntary administration or restructuring proceedings, we can help — but the earlier you call, the more we can do.
Call Mark Harley, Principal Solicitor, on 1300 267 711 or contact Boss Lawyers at bosslawyers.com.au/contact.
For a full overview of ATO enforcement and Director Penalty Notices, see our article: ATO Director Penalty Notice Crackdown 2026: What Queensland Directors Must Do.
If your company is facing broader financial difficulty, our insolvency lawyers can advise on all available options, including voluntary administration, small business restructuring, and creditor negotiation.
Frequently Asked Questions
When is the June quarter BAS due in 2026?
The BAS for the April to June 2026 quarter is due on 28 July 2026. BAS agents may be eligible for a concession date — confirm with your tax agent.
What is a lockdown Director Penalty Notice?
A lockdown DPN arises when a company has not lodged its BAS within three months of the due date. It transfers the company’s unpaid PAYG and GST to the director personally — and unlike a non-lockdown DPN, placing the company into administration or liquidation does not help. The debt is yours regardless.
Can I avoid personal liability by resigning before the BAS is due?
Not necessarily. Resignation after the obligation has accrued does not eliminate liability. Get legal advice before making any decisions based on resignation.
What if my company lodges the BAS but cannot pay?
Lodge anyway. A company that lodges but cannot pay receives a non-lockdown DPN — giving directors a 21-day window to act (voluntary administration, restructuring, liquidation, or payment). A company that does not lodge faces lockdown liability with no exit.
Can the ATO negotiate a payment plan?
Yes. The ATO does negotiate payment arrangements for companies engaging proactively. Early engagement — before the BAS deadline — produces better outcomes. Get advice before approaching the ATO.
This is general information only and is not legal advice. You should obtain professional advice specific to your circumstances.
Author: Mark Harley, Principal Solicitor, Boss Lawyers Pty Ltd. Mark has more than 17 years’ experience in commercial litigation, insolvency law, and director disputes, and regularly advises directors and companies on ATO obligations, Director Penalty Notices, and insolvency restructuring options.
