For many Australian business owners, a Business Activity Statement (BAS) is treated as routine bookkeeping: calculate the GST, report PAYG withholding, lodge the form and worry about payment later.
That approach is becoming increasingly dangerous.
The ATO has strengthened its compliance and debt-collection approach, including moving some non-compliant small businesses from quarterly to monthly GST reporting. At the same time, company directors need to understand the Director Penalty Notice (DPN) regime, while employers now face another major compliance change: Payday Super, which commenced on 1 July 2026.
For businesses already experiencing cash-flow problems, these rules can interact in ways that create significant personal and corporate risk.
Why Has the ATO Moved Some Businesses to Monthly BAS Reporting?
Normally, your GST reporting cycle depends primarily on your GST turnover.
Generally:
- GST turnover of $20 million or more — monthly GST reporting is compulsory.
- GST turnover of less than $20 million — GST is generally reported quarterly unless you choose monthly reporting or the ATO requires you to report monthly.
- Certain voluntarily GST-registered businesses below the applicable registration threshold may be eligible for annual reporting.
However, turnover is no longer the only reason a small business may find itself reporting GST monthly.
The ATO has specifically targeted some small businesses with a history of non-compliance, including businesses that repeatedly lodge late, pay late, fail to lodge, fail to pay, or incorrectly report their obligations.
From April 2025, the ATO began moving thousands of non-compliant small businesses from quarterly to monthly GST reporting.
This means even a relatively small company can potentially find itself with 12 GST reporting deadlines per year instead of four.
Is Monthly BAS Reporting Bad?
Not necessarily.
For a well-managed business, monthly BAS reporting can actually be beneficial. It can produce smaller GST payments, improve bookkeeping discipline and provide management with more current financial information.
The danger arises when a business is already struggling with its bookkeeping, cash flow or ATO obligations.
A monthly GST reporter will generally need to lodge and pay its monthly BAS by the 21st day of the following month.
That means there is considerably less time between reporting periods.
Missing one quarterly BAS is a problem.
Missing six or eight monthly BAS statements can become a serious compliance problem very quickly.
The Bigger Danger for Company Directors: Director Penalty Notices
This is where company directors need to pay particular attention.
A company is legally separate from its directors, but that does not mean directors are always protected from the company’s tax liabilities.
Under Australia’s Director Penalty Notice regime, company directors can become personally liable for certain unpaid company liabilities, including:
PAYG withholding, GST and Superannuation Guarantee Charge (SGC).
A DPN can therefore potentially expose a director’s personal assets to recovery action.
The critical lesson is simple:
Lodging a BAS but being unable to pay it is generally much safer than failing to lodge it at all.
For PAYG withholding and GST, the DPN regime distinguishes between liabilities that have been reported within the relevant timeframe and liabilities that have remained unreported.
If PAYG withholding or GST liabilities are not reported within three months of the relevant lodgment due date, the director penalty can become what is commonly referred to as a lockdown DPN.
Once the liability is locked down, subsequently appointing an administrator, small business restructuring practitioner or liquidator does not, by itself, remit that director penalty.
This distinction can be critical.
“I Can’t Afford the BAS, So I Won’t Lodge It Yet” Can Be a Very Expensive Mistake
This is one of the most dangerous misconceptions we see.
Consider a company that has a $60,000 BAS liability but only $10,000 in available cash.
The director may think:
“There is no point lodging the BAS because I can’t afford to pay it.”
That can make the situation substantially worse.
Lodgment and payment are two separate issues.
Even when a company cannot immediately pay its full liability, keeping its reporting obligations up to date can be extremely important in managing DPN exposure and preserving available restructuring options.
A business facing financial difficulties should therefore speak with its accountant, tax agent and, where appropriate, an insolvency professional before outstanding BAS statements become seriously overdue.
Monthly BAS Can Accelerate the Compliance Problem
Imagine a business that used to report quarterly.
It falls behind with its BAS and ATO payments. Because of its compliance history, it is subsequently moved onto monthly GST reporting.
The business now needs to manage a new BAS reporting deadline virtually every month.
If management continues to ignore its accounting records and GST and PAYG obligations, the number of overdue reporting periods can accumulate rapidly.
This is why receiving an ATO notification moving your business to monthly GST reporting should not simply be regarded as an administrative inconvenience.
It can be a warning that your business’s tax compliance systems require immediate attention.
Payday Super Has Changed the Compliance Landscape Again
There is another major change Australian employers cannot afford to overlook.
From 1 July 2026, Payday Super commenced.
Under the new system, employers generally need to make Superannuation Guarantee contributions in connection with each payday rather than relying on the old quarterly payment cycle.
Super contributions generally need to reach an employee’s super fund within seven business days after payday, subject to specific exceptions such as the extended timeframe applying to certain new employees.
For a business paying employees weekly, this represents a major change in cash-flow management.
Previously, the business might accumulate its super obligation and make a quarterly payment.
Now, payroll and super cash flow are much more closely connected.
Payday Super means employers need to think:
Wages + PAYG withholding + super + GST + cash flow — together, not separately.
What Happens If Payday Super Is Paid Late?
Late super can result in Superannuation Guarantee Charge (SGC) consequences.
For company directors, SGC is particularly important because unpaid SGC falls within the Director Penalty Notice regime.
There is also an important distinction between SGC and GST/PAYG withholding for lockdown purposes.
For GST and PAYG withholding, the three-month reporting rule is critical.
For SGC liabilities within the current DPN framework, failing to lodge the required Superannuation Guarantee Statement by its due date can create lockdown consequences.
In other words, directors should never assume:
“I’ll sort out the super when the company has more money.”
Late super can move beyond an ordinary company debt and become a director-level risk.
Payday Super Also Creates a Cash-Flow Test
Consider a business with a fortnightly payroll of $100,000.
At a 12% SG rate, that can represent approximately $12,000 of super associated with each fortnightly payroll, subject to the applicable qualifying earnings rules and individual circumstances.
That money can no longer simply be treated as working capital until the end of a quarter.
Businesses with tight cash flow therefore need better:
- payroll forecasting;
- GST forecasting;
- PAYG withholding management;
- super reconciliation;
- debtor collection;
- bookkeeping;
- BAS preparation; and
- short-term cash-flow forecasting.
In 2026, bookkeeping should no longer simply mean recording what happened last month.
A properly designed accounting system should help management identify what needs to be paid next week and whether sufficient cash will be available to pay it.
What Should a Business Do If It Cannot Pay the ATO?
The worst response is often to ignore the problem.
If your company cannot pay its BAS, PAYG withholding or super obligations, consider taking action early.
The priorities should generally include:
- Bring bookkeeping up to date.
- Identify every outstanding BAS and tax lodgment.
- Lodge outstanding obligations as soon as appropriate, particularly where DPN time limits may be relevant.
- Reconcile employee super and determine whether any SGC obligations exist.
- Prepare a realistic cash-flow forecast.
- Review the company’s total ATO debt.
- Consider whether an ATO payment arrangement is sustainable.
- Obtain professional restructuring or insolvency advice early if the company cannot meet its debts as they fall due.
Simply moving ATO debt from one month to another without addressing the underlying cash-flow problem is not a long-term solution.
Frequently Asked Questions
Who is required to report GST monthly?
Businesses with GST turnover of $20 million or more generally must report GST monthly. Businesses below $20 million may voluntarily choose monthly reporting, and the ATO can also require certain businesses to move onto monthly reporting, including businesses with a history of compliance failures.
When is a monthly BAS due?
A monthly BAS is generally due for lodgment and payment on the 21st day of the following month, although particular circumstances and concessions can affect due dates.
Can the ATO force a small business onto monthly GST reporting?
Yes. The ATO has been moving certain small businesses with poor compliance histories from quarterly to monthly GST reporting.
Can a director become personally liable for unpaid GST?
Yes. The DPN regime can make company directors personally liable for certain unpaid GST, PAYG withholding and SGC liabilities.
What happens if a BAS is more than three months late?
For company directors, this can be particularly serious. Where relevant PAYG withholding or GST liabilities are not reported within three months of the lodgment due date, the associated director penalty may become locked down. Professional advice should be obtained immediately.
Is it better to lodge a BAS even if the company cannot pay?
Generally, do not delay lodgment merely because the company cannot pay. Lodgment and payment are separate obligations, and late or non-lodgment can significantly worsen a director’s DPN position. The precise position depends on the company’s circumstances, so professional advice should be obtained.
What is Payday Super?
Payday Super commenced on 1 July 2026. Employers now generally need to pay super in connection with each payday, with contributions generally required to reach employees’ super funds within seven business days.
Does Payday Super apply only to large businesses?
No. Payday Super applies broadly to employers with Superannuation Guarantee obligations. Small employers need to ensure their payroll, accounting and payment processes are capable of complying with the new regime.
Local Accountant Sydney: Don’t Wait Until the ATO Takes Action
If you run a business in Sydney and are falling behind with monthly BAS, quarterly BAS, GST, PAYG withholding, ATO debt or employee super, early action can make a substantial difference.
At EndureGo Tax, our Sydney accountants and registered tax professionals work with businesses on BAS preparation, bookkeeping, tax compliance, ATO debt management, and business advisory.
More importantly, we help business owners understand the interaction between their accounting records, cash flow, BAS obligations, ATO debt and potential director exposure.
If your company has outstanding BAS statements, unpaid GST, PAYG withholding or super, the question should not be:
“How long can I leave this?”
The better question is:
“What do I need to do now to stop the position getting worse?”
Early reporting, accurate accounting, and professional advice can be significantly less expensive than trying to repair years of overdue obligations after the ATO has commenced enforcement action.
