ATO Debt Enforcement in 2026: Garnishees, Disclosure of Business Tax Debts and Winding Up

Key Takeaways

• The ATO's enforcement posture hardened sharply from 2024. The 84,000+ DPNs issued in 2024-25 represented a 136% increase on the prior year and the Tax Ombudsman has announced a review of the regime in 2026.
• From 1 July 2025 the general interest charge and shortfall interest charge are no longer deductible. GIC compounds daily, so carrying ATO debt as informal working capital now costs its full rate with no tax offset.
• A garnishee notice lets the ATO take money directly from the company's bank accounts or debtors without a court order and it can arrive without warning once a debt is overdue and unengaged.
• The ATO can disclose business tax debts of $100,000 or more that are over 90 days overdue to credit reporting bureaus where the taxpayer is not engaging. Disclosure typically ends trade credit and bank facilities and you get 28 days from the intent notice to prevent it.
• Statutory demands and winding up applications are the end of the sequence and the ATO has long been the most active winding up applicant in the country. A company that waits until this stage has usually lost the restructuring options that were available two steps earlier.

1. 1.The Debt Itself Got More Expensive
2. 2.Step One: Engagement, Payment Plans and Their Limits
3. 3.Step Two: Garnishee Notices
4. 4.Step Three: Disclosure of Business Tax Debts
5. 5.Step Four: Director Penalty Notices
6. 6.Step Five: Statutory Demands and Winding Up
7. 7.Reading the Sequence as a Director

For most of the decade to 2022 the ATO behaved like a lender of last resort, tolerant of payment plans, slow to escalate and slower to wind up. Businesses learned to treat the tax account as a free overdraft. Both the tolerance and the overdraft are gone. Enforcement volumes have reached record levels, the interest subsidy has been legislated away and the practical question for any company carrying tax debt is no longer whether the ATO will act but which tool it will reach for first.

This guide covers the toolkit in escalation order. If any of these notices has already arrived, the order stops mattering and timing takes over. Contact Astris Law on (07) 4270 8880.

The Debt Itself Got More Expensive

Before any enforcement step, the debt is already growing. The general interest charge compounds daily on unpaid tax at a rate reset quarterly and from 1 July 2025 neither GIC nor the shortfall interest charge is tax deductible. The change applies to interest incurred from that date regardless of how old the underlying debt is.

The commercial effect is larger than it looks. A deductible interest charge was partially subsidised at the company's tax rate and that subsidy is gone while the headline rate continues to compound daily. ATO debt is now among the most expensive unsecured money a business can hold, which inverts the old instinct to pay the bank first and let the tax office wait. Directors should also remember that interest follows the parallel liability, so a growing company debt grows the exposure a DPN can crystallise personally.

Step One: Engagement, Payment Plans and Their Limits

The ATO's stated preference is engagement and for viable businesses a payment plan remains the cheapest exit. The limits deserve respect though. The ATO expects lodgements to be current before it negotiates, expects plans to clear the debt in a defined period alongside ongoing obligations and treats defaulted plans as evidence of non-engagement that accelerates everything below. Entering a plan the company cannot service buys weeks and spends credibility the company will want later.

Engagement matters beyond the plan itself because most of the firmer tools are gated on non-engagement. A company that is lodging on time, communicating and meeting an arrangement is a poor candidate for garnishees and disclosure. A company that has gone quiet selects itself for them.

Step Two: Garnishee Notices

A garnishee notice requires a third party who owes money to the tax debtor to pay the ATO instead. No court order is involved. The usual targets are the company's bank, which can be required to remit a percentage of account balances or ongoing deposits and the company's trade debtors, who can be required to redirect their invoice payments. The ATO issued more than 15,000 garnishee notices in 2024-25.

Garnishees hurt because they arrive without warning and interrupt cash flow at its source. A bank garnishee can empty the operating account the week wages are due and a debtor garnishee tells your customers the company has tax trouble, which does commercial damage no notice period would have softened. For directors the garnishee is also a signal: the ATO has classified the company as unengaged and the DPN, if it has not already arrived, is close.

Step Three: Disclosure of Business Tax Debts

The ATO can report a business's tax debt to credit reporting bureaus where the business has an ABN, owes $100,000 or more overdue by more than 90 days and is not engaging with the ATO about the debt. An intent to disclose notice gives the business 28 days to pay or enter an appropriate arrangement before the disclosure proceeds.

Disclosure is quiet but severe. Once the debt sits on the company's credit file, trade credit insurers withdraw cover, suppliers tighten terms, banks reprice or call facilities and the company's ability to trade through its difficulty shrinks at exactly the moment it needs room. For many businesses the disclosure does more practical damage than the garnishee, because it changes how every counterparty prices the relationship. The remedy is the same as everywhere else in the sequence: engage inside the 28 days, because an active payment arrangement takes the debt off the disclosure list.

Step Four: Director Penalty Notices

The DPN converts the company's PAYG withholding, GST and superannuation guarantee charge debts into the directors' personal debts, recoverable 21 days after the ATO posts the notice to the address on the ASIC register. The 84,000+ notices issued in 2024-25 made the DPN the centrepiece of the ATO's current strategy and the Tax Ombudsman's 2026 review of the regime responds directly to that surge.

The regime has its own traps, including lockdown classification for late lodgers and service rules that do not require you to actually receive the notice. We cover the full machinery in our flagship DPN guide and the lockdown rules in their own guide. The point for the escalation sequence is that the DPN changes who the debtor is. Up to this step the ATO has been pursuing the company. From this step it is pursuing you and your personal assets, your family home and your other directorships are now part of the conversation.

Step Five: Statutory Demands and Winding Up

The end of the sequence is the Corporations Act. The ATO serves a statutory demand under s 459E, the company has 21 days to pay, secure or compound the debt or apply to set the demand aside and failure creates a presumption of insolvency that grounds a winding up application. The ATO has long been the most active winding up applicant in Australia and it uses the application not primarily to recover the particular debt but to remove non-compliant businesses from the field before the debt grows.

Two points matter for directors here. First, a winding up application is public and its mere filing can trigger bank defaults, ipso facto issues in contracts and the practical end of the business regardless of the application's outcome. Second, by this stage the rescue tools have mostly expired, because small business restructuring requires lodgements current and winding up not yet ordered, the safe harbour requires tax reporting substantially up to date and a court appointed liquidation extinguishes the choices a voluntary appointment would have preserved. The company that engages at step one chooses its insolvency practitioner and its process. The company that waits for step five gets both chosen for it. Our statutory demands guide covers the 21 day response window in detail.

Reading the Sequence as a Director

The toolkit above is the ATO's. The director's toolkit is timing. Every step down the sequence closes options that were open one step earlier, so the company that engages while the debt is merely expensive keeps payment plans, restructuring, safe harbour and choice of practitioner all on the table. The company that engages after the garnishee keeps some of them. The company that engages after the winding up application keeps none and its directors are usually defending DPNs and insolvent trading exposure at the same time, a combination covered in our section 588G guide.

The practical reading list for a director of a company with tax debt is short. Know the size of the debt including accrued GIC, know the lodgement status because it controls both lockdown classification and restructuring eligibility, know what the ATO correspondence file actually says rather than what the bookkeeper summarised and get advice while the engagement options are still open rather than when the 21 or 28 day clocks start.

This guide is part of our Director Liability and ATO Compliance hub, which collects the full series alongside our related guides on insolvency and directors' duties.

If the company has tax debt and the letters are getting firmer, please get in touch or call (07) 4270 8880.

This article is for general information purposes only and does not constitute legal advice. You should seek professional advice tailored to your specific circumstances before acting on any information in this article. Liability limited by a scheme approved under Professional Standards Legislation.