For many small and medium business owners, tax debt isn’t just a once-a-year issue. It’s an ongoing pressure that affects cash flow, peace of mind, and long-term business decisions.
And this year, there’s a change that could make things more expensive if you’re carrying any tax debt.
What’s Changed?
From 1 July, interest charges applied by the ATO — the General Interest Charge (GIC) and Shortfall Interest Charge (SIC) — will no longer be tax-deductible.
In the past, these interest charges could reduce your overall taxable income. That’s no longer the case. Now, they’re an after-tax cost, which means they’ll hit your bottom line harder.
Put simply: tax debt just got more expensive to carry.




