Working Capital Loan vs Sitting on ATO Debt at Today's GIC Rate (2026)
Working Capital Loan vs ATO Debt 2026 | Switchboard Finance
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Working Capital Loan vs Sitting on ATO Debt at Today's GIC Rate (2026)
The general interest charge is currently set at 10.96 percent per annum, indicative and varies by quarter, and lost its income tax deduction in July 2025. For self-employed business owners carrying a tax-debt position, the all-in cost calculation against a working capital loan has shifted.
Quick Answer
Carrying ATO debt now costs more than it used to. The general interest charge compounds daily on unpaid balance and is no longer income tax deductible, which lifts the all-in cost above what a structured working capital loan commonly carries. Refinancing the position can be the cleaner cashflow move.
What today's GIC rate really costs you
The Australian Taxation Office general interest charge is set at 10.96 percent per annum, indicative, varies by quarter, for the April to June 2026 quarter. That rate compounds daily on unpaid balance, which means a tax position that looks manageable on day one drifts upward every single day it sits unaddressed.
Two changes have reshaped the math since mid-2025. First, the general interest charge is no longer income tax deductible from 1 July 2025, following the legislated removal of that long-standing deduction. Second, the headline rate has stayed elevated alongside the broader rate environment, indicative and varies by quarter. The result is that the effective cost of sitting on an ATO position is meaningfully higher in 2026 than it was two years ago, and the case for refinancing into a structured business facility has hardened.
For self-employed business owners, the effect is straightforward: the same dollar of ATO debt now drains operating cash faster, with no offset at tax time. The working capital position erodes on two sides at once.
The all-in cost: working capital loan vs unpaid ATO position
A pricing comparison only works if both sides are read on the same basis. The general interest charge headline of 10.96 percent per annum, indicative, varies by quarter, is the gross figure. Once the loss of deductibility is applied, the after-tax cost of carrying ATO debt for a profitable business is materially higher than the headline rate suggests.
A working capital loan is priced on a factor rate or interest rate plus an origination fee, varies by lender. The rate band depends on credit profile, security and term, and can sit above or below the general interest charge headline. The relevant comparison is not headline-to-headline. It is the all-in cost of carrying ATO debt against the all-in cost of the new facility, with deductibility, daily compounding and repayment structure all in the same column.
Lenders weigh three things on a tax-debt refinance: BAS currency, the size of the position relative to monthly turnover, and whether the business has been making any voluntary payments toward the ATO in recent months. A position that has been stable or trending down reads differently from one that has compounded silently for two quarters.
Where an ATO refinance reads cleanly
Not every tax-debt position should move to a working capital loan. The structural cleanliness of the refinance depends on cashflow stability, the size of the position, and what the rest of the business credit picture looks like. The four checks below walk through where the move sits naturally. The Australian Small Business and Family Enterprise Ombudsman covers the broader options for small businesses dealing with ATO debt, including direct payment arrangements and dispute pathways, which sit alongside the refinance path the rest of this section steps through.
When the file slows down
Where multiple stops show up in the same file, the conversation usually shifts away from a clean refinance. The path may still land somewhere useful, a longer-term arrangement with the ATO, a structural review of the underlying cashflow, or a specialist facility priced for the risk picture. A non-bank lender may still take the file where a major bank will not, but pricing reflects what the file looks like at the time of application.
What the working capital loan looks like in practice
A working capital loan structured to clear an ATO position generally settles in an approximately 24 to 48 hour funding window indicative and varies by lender, once the file is approved. Funds land in the business operating account and are then directed to the ATO, after which the working capital loan replaces the ATO as the creditor. Repayments are structured daily, weekly or monthly debit, depending on lender and product.
For self-employed business owners, the cleaner outcome is usually that the working capital loan term aligns roughly with the next two to three BAS cycles, so the position is fully cleared before the cashflow rhythm of the business hits its next seasonal stress point. From the broker side, the files that move fastest are the ones where BAS is current, the most recent two quarters of bank statements sit clean, and the owner has a clear narrative for why the position arose. Lenders read context as much as they read numbers.
If the working capital loan is one piece of a broader cashflow stack, including invoice finance or a line of credit, the sequencing matters. Our cashflow facility stack guide walks through how the three sit alongside each other for a trading SME.
The current general interest charge headline understates the real cost of carrying ATO debt in 2026. With deductibility removed and daily compounding running, the all-in cost of a sitting tax position has lifted above where it sat two years ago. A working capital loan priced and structured against that picture will not always be the answer, but the case is stronger now than it has been at any point in the recent cycle. The right move depends on BAS currency, the size of the position relative to turnover, and the underlying revenue trend.
Key takeaway: compare the all-in cost of carrying ATO debt against a working capital loan on the same basis, including deductibility and compounding cadence, before deciding which side of the line the position should sit on.Frequently Asked Questions
Refinancing ATO debt with a working capital loan is a common and legitimate use of the facility, particularly where the general interest charge at 10.96 percent per annum, indicative, varies by quarter, sits above the all-in cost of the new debt. The loan funds settle into the business operating account and are then directed to the ATO to clear the balance, after which the working capital loan replaces the ATO as the creditor on a structured daily, weekly or monthly debit.
ATO interest, including the general interest charge, is no longer income tax deductible from 1 July 2025, following the legislated removal of that deduction. Interest paid on a working capital loan used for business purposes generally remains deductible under ordinary business expense rules, which is one reason the all-in cost of carrying ATO debt has shifted relative to a refinance.
A working capital loan typically prices on a factor rate or interest rate plus an origination fee, varies by lender, and the rate sits in a band that can fall above or below the general interest charge depending on credit profile, security and term. Because the general interest charge compounds daily on unpaid balance, the gap widens the longer the ATO position sits unaddressed, which is what tips the all-in cost calculation. The business loan definition guide sets out how the broader product family is priced.
Applying for a working capital loan does not change BAS lodgement obligations, but lenders will commonly want to see that BAS lodgements are current before approving the facility. Where a business has fallen behind on lodgement, the lender file usually pauses until the next BAS is lodged with the ATO, which is one of the few non-negotiable items in a tax-debt refinance assessment. Trade businesses can speed the review by submitting the tradie loan pack, which collects the BAS, bank statements and ATO portal screenshots most lenders ask for upfront.
Clearing or restructuring ATO debt is often a precondition for a residential home loan application, particularly with prime lenders, because outstanding tax liabilities feed directly into the lender servicing read. A working capital loan that converts the ATO position into a structured business facility can change how the file presents, though the path will vary by lender appetite and the business credit profile. The conditional approval explainer covers what underwriters typically look for when the file is reassessed.
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