ATO tax debt gets more expensive the longer it sits unpaid, since the general interest charge currently sits at 11.43% per annum and compounds daily (ato.gov.au). Three main levers can bring it under control quickly: setting up an ATO payment plan to spread repayments, applying for GIC or SIC remission where genuine hardship applies, or consolidating the debt into a single tax debt loan that stops the daily compounding altogether.
Businesses trying to pay off ATO tax debt quickly are working against a tougher backdrop than they were a year ago. Since 1 July 2025, any general interest charge (GIC) or shortfall interest charge (SIC) added to a tax bill is no longer tax-deductible, regardless of which income year the underlying debt relates to, a change the ATO confirms directly in its guidance on the deductibility of ATO interest charges. That matters because the current GIC rate is 11.43% per annum, compounding daily, so a debt left sitting doesn’t just grow: it now grows without the tax offset that used to soften the blow.
Left unaddressed for long enough, unpaid tax can also expose company directors personally through a Director Penalty Notice. This guide walks through the three practical ways to pay off tax debt fast: negotiating an ATO payment plan, requesting GIC or SIC remission, and consolidating the debt into a single tax debt loan.
Key Takeaways
- GIC or SIC incurred on or after 1 July 2025 is no longer tax-deductible, even for debt from an earlier income year.
- The current general interest charge is 11.43% p.a., compounding daily.
- Payment plans usually run for a maximum of two years, though larger or more complex debts are often given shorter terms still.
- Genuine hardship or exceptional circumstances can support a GIC or SIC remission request.
- Consolidating ATO debt into one loan stops the daily compounding and can reduce Director Penalty Notice exposure.
- Dark Horse Financial can fund $10,000 to $50 million across 100+ lenders, with some unsecured products approved in 24 to 48 hours.
How ATO Tax Debt Adds Up: Why Delay Now Costs More
Unpaid tax debt with the ATO attracts interest almost immediately, and understanding exactly what that interest is makes it easier to see why speed matters.
What Is GIC and SIC?
The general interest charge (GIC) applies to unpaid tax and BAS debt, while the shortfall interest charge (SIC) applies when a tax assessment is later found to have understated a liability. Both currently accrue at 11.43% per annum, compounding daily, so the balance grows every day the debt goes unpaid.
Why the 1 July 2025 Change Matters
Before 1 July 2025, GIC and SIC could be claimed as a tax deduction, effectively lowering their real cost. That’s no longer the case: any GIC or SIC incurred on or after that date isn’t deductible, no matter which income year the original debt relates to. A business that previously offset, say, $5,000 of GIC against its taxable income now simply absorbs the full $5,000. The after-tax cost of carrying ATO debt has gone up even though the headline rate hasn’t necessarily moved.
To put a number on it, on an illustrative $50,000 ATO debt left unpaid, interest at the current rate works out to roughly $1,430 after three months, $2,940 after six months, and $6,050 after a full year. These figures are calculated from the published GIC rate rather than taken from an ATO-issued example, so it’s worth double-checking the exact amount against the ATO’s own interest calculator for any specific debt. That interest doesn’t pause just because a payment plan is being negotiated either: it keeps accruing on the outstanding balance the whole time, which is exactly why acting sooner rather than later tends to matter more than which option is eventually chosen.
Step 1: Get an Accurate Picture of What You Owe
Before negotiating anything with the ATO, it helps to know precisely what’s owed. Log in to the ATO’s online services (or the business portal, for companies) and pull the current running balance, then separate the original tax or BAS debt from the GIC or SIC that’s accrued on top of it (the two behave differently). Knowing the split makes it much easier to judge whether a payment plan, a remission request, or a consolidation loan is the better fit.
It’s also worth getting every outstanding lodgment up to date first. The ATO generally requires lodgments to be current before it will set up a payment plan. If the numbers are complicated, or it’s simply not clear where to start, a registered tax agent can pull the full picture together and flag which options are realistically on the table before any conversation with the ATO begins.
Step 2: Negotiate an ATO Payment Plan
An ATO payment plan is usually the first port of call to pay off tax debt fast, and for smaller amounts it can be the quickest option to arrange.
How to Apply for a Payment Plan
Smaller, more straightforward debts can typically be set up entirely online through ATO services, with the system proposing a repayment schedule based on the amount owed. Larger or more complex debts (think significant BAS shortfalls, multiple outstanding periods, or amounts a director is personally exposed to) usually need a phone call to the ATO or the involvement of a registered tax agent, who can negotiate terms and put forward supporting information the online system doesn’t ask for. Plan lengths tend to be shorter for bigger or more complicated debts, and generally run no longer than two years even at the outside.
What a Payment Plan Doesn't Fix
A payment plan spreads the debt out, but it doesn’t touch the interest. GIC continues to compound daily on whatever balance remains, for as long as the plan runs, unless it’s separately remitted. That’s the trade-off worth weighing before committing: a payment plan buys time and structure, but the total cost keeps climbing in the background. This is exactly the gap a consolidation loan is designed to close, covered later in this guide.
Step 3: Apply for Remission of GIC or SIC
Whether it’s called GIC remission or SIC remission, the process is the same: it isn’t automatic, it’s a discretionary decision the ATO makes case by case, and it needs a written request that actually makes the case for it.
What Qualifies for Remission
Genuine hardship and exceptional circumstances are the categories the ATO tends to consider (a natural disaster, a serious illness affecting the people running the business, or events genuinely outside the business’s control). That list can shift, though, and the latest ATO guidance is always worth referencing. Anecdotally, business owners have told us there’s been limited appetite from the ATO for remission of interest lately.
How to Request It
A remission request is typically lodged in writing, through ATO online services or via a registered tax agent acting on the business’s behalf. A clean lodgment history and clear, documented evidence tend to make a stronger case than a bare request.
Realistically, remission only goes so far: even a successful request reduces the interest that’s built up, not the underlying debt. If it’s knocked back, or only partly granted, consolidating the debt into a single loan becomes the more direct way to stop the interest clock.
It’s worth taking the time to speak with Dark Horse Financial about consolidating ATO debt into one facility built around your business’s cash flow. With a panel of more than 100 lenders, a workable structure can often be found even where a single bank has said no, and some unsecured products are assessed in as little as 24 to 48 hours.
Worked Example: Payment Plan vs Tax Debt Consolidation Loan
Numbers make the trade-off easier to see. Take a $50,000 ATO debt being repaid over 12 months under each approach.
Under a payment plan, GIC keeps accruing on the reducing balance at 11.43% p.a. for the life of the plan. This works out to an illustrative total of roughly $3,050 to $3,600 over the year depending on the repayment schedule, though the ATO’s own calculator is the place to pin down the precise figure rather than treating this as fixed.
Under a tax debt consolidation loan, GIC and SIC stop accruing from the date the ATO debt is settled. From there, the business pays the loan’s own interest and fees, which vary by lender, security, and risk profile. There’s no single rate that applies across the board.
| ATO Payment Plan | Tax Debt Consolidation Loan | |
| GIC interest accrual | GIC keeps compounding daily on the reducing balance | Stops from the ATO settlement date |
| Speed to stop GIC/SIC | Only once the plan is fully repaid | Immediate, once the loan settles the ATO debt |
| Typical term | Capped at two years max; often shorter for larger or complex debts | Set by the lender; can be structured around cash flow, with terms of five years or more available to approved applicants |
| Impact on ATO relationship / DPN risk | Debt remains with the ATO until fully repaid | ATO debt is cleared, reducing DPN exposure |
| Flexibility on security | Set by ATO terms | Secured or unsecured options, depending on the lender |
The comparison isn’t about which option is universally better. It’s about which one matches how quickly the business needs the ATO relationship, and the compounding, to stop.
Managing ATO Debt Long-Term With a Tax Debt Loan
For debts too large, too urgent, or too complicated for a standard ATO payment plan, consolidating ATO debt into a single loan takes the daily-compounding GIC risk off the table entirely. It replaces multiple obligations with one lender and one repayment schedule, so interest stops ticking over on top of interest.
Using Equity to Refinance ATO Debt
Where a business (or its directors) has equity in commercial property, other business assets, or even the family home, that equity can sometimes be used to refinance ATO debt into a longer facility with lower, more manageable repayments. This trades a short, urgent problem for a longer-dated one that’s easier to service month to month.
Avoiding Director Penalty Notices
Acting quickly matters beyond the interest bill. Directors can become personally liable for certain unpaid company tax debts through a Director Penalty Notice, and how the ATO handles that liability can depend on how promptly the company has been lodging and responding. Clearing the debt sooner, rather than letting it drift, is one of the more direct ways to keep that risk off the table.
Dark Horse Financial funds between $10,000 and $50 million across a panel of more than 100 banks, non-bank lenders, and private financiers, with both secured and unsecured loan options. This is largely why larger or more complicated ATO debts (the kind a standard payment plan wasn’t really built for) can often still be funded somewhere on that panel.
FAQ
Timing depends heavily on the size of the debt and the method used. A tax debt consolidation loan can settle the ATO balance within days of approval, while a standard payment plan spreads repayment over months or, for larger debts, several years, with GIC still accruing throughout.
Yes, interest keeps accruing on an ATO payment plan, and this is one of the most common misunderstandings among business owners. The general interest charge continues to apply at the current rate of 11.43% per annum, compounding daily, for the life of the plan, unless it’s been separately remitted.
No. Any GIC or SIC incurred on or after 1 July 2025 is no longer deductible, regardless of which income year the underlying tax debt relates to. This is confirmed in the ATO’s own guidance on the deductibility of ATO interest charges.
Ignoring ATO tax debt allows GIC or SIC to keep compounding daily, increasing the total owed the longer it goes unaddressed. Beyond the growing interest bill, the ATO can also escalate recovery action, which for company directors can include a Director Penalty Notice making them personally liable for specific debts.
Conclusion
An accurate read on the balance, a payment plan, or a remission request can each genuinely help reduce or restructure ATO tax debt, but none of them stop the interest clock on their own. GIC and SIC keep compounding daily under all three, and since 1 July 2025 that cost isn’t even tax-deductible anymore. Only a tax debt consolidation loan removes the daily compounding entirely, swapping it for one structured repayment built around the business’s cash flow, which is why it’s worth a direct conversation with Dark Horse Financial about tax debt loan options sooner rather than later, given how quickly the numbers above can move.
Sources and Methodology
- Australian Taxation Office: General interest charge (GIC) rates (current rate for the quarter, 11.43% p.a.), ato.gov.au
- Australian Taxation Office: Denying deductions for ATO interest charges (deductibility change from 1 July 2025), ato.gov.au
- Australian Taxation Office: Shortfall interest charge and Interest charged by the ATO guidance pages, ato.gov.au
- Australian Taxation Office: Payment plans guidance, ato.gov.au
- Australian Taxation Office: Remission of interest charges guidance, ato.gov.au
Disclaimer
The information in this article is general in nature and does not take into account your personal circumstances and it is not a recommendation or advice of any kind. You should always consult a professional for tax, financial planning and superannuation before making any decisions.
Pay off Tax Debt Quickly With a Tax Debt Loan
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