If you owe money to the Australian Taxation Office and you own property, you have probably wondered whether you can shift that tax debt into your mortgage. The short answer is that it is sometimes possible, and it usually happens in one of two ways: a conventional refinance where you release equity from your home, or a specialist property-backed loan set up specifically to clear the tax debt. Neither pathway is automatic, and both depend on your equity, your income evidence and your recent repayment conduct.
The reason so many business owners and self-employed borrowers are asking about it right now comes down to cost. The ATO General Interest Charge for 1 July to 30 September 2026 is 11.43% p.a., calculated daily and reviewed each quarter, and since 1 July 2025 that charge is no longer tax deductible. So an unpaid tax bill can quietly grow while you are paying it down.
A tax debt loan or refinance can lower the interest rate you pay, but it also converts an unsecured ATO debt into a debt secured against your property, which is a genuine trade-off you need to weigh with clear eyes. A lower monthly repayment stretched over 25 or 30 years can also cost you more in total interest than the original tax bill, unless you plan extra repayments from the start.
This guide walks through how the numbers work, when each pathway tends to be realistic, what an ATO payment plan looks like by comparison, and the credit and property risks worth checking before you sign anything. If you would like someone to run the figures against real lender policy, the team at Kingslend Financial can review your borrowing capacity and options across Australia, including remotely; call 1300 068 880 or send a message through kingslend.com.au and you will usually hear back within three business hours.
How Property-Backed Tax Debt Consolidation Works
The mechanics are simpler than most people expect: a lender increases or replaces your current mortgage, and the extra funds pay out the ATO at settlement. What decides whether it can happen is your equity position, your loan-to-value ratio and whether you can prove you can afford the new repayment.
Replacing An ATO Liability With Secured Finance
In a tax debt refinance, your existing home loan is either topped up or fully refinanced to a new lender. The additional funds are released at settlement and used to clear the ATO balance, often paid directly to the ATO rather than to you.
What changes is the nature of the debt. An ATO liability is unsecured. Once you refinance, that same amount is secured against your property, sits inside your mortgage and is repaid over your loan term. That usually means a lower rate and a smoother cash flow, and a longer repayment horizon.
Calculating Available Equity And Loan-to-Value Ratio
Equity is your property value minus what you owe. Most mainstream lenders will lend up to 80% LVR without lenders mortgage insurance, so a quick sense check looks like this:
| Item | Example |
|---|---|
| Estimated property value | $1,000,000 |
| 80% LVR ceiling | $800,000 |
| Current mortgage balance | $640,000 |
| Indicative equity available | $160,000 |
Costs, fees and the lender’s own valuation will change that figure, and specialist lenders may work to different LVR limits. Treat it as a starting point, not a promise.
Why Serviceability Still Determines Approval
Equity alone does not get an approval. Lenders run a serviceability assessment on the new, larger loan, using buffered rates and your declared living expenses. Lending criteria also look at how you have handled repayments recently. If your borrowing power will not stretch to the combined balance, the equity sitting in your home cannot be released, regardless of how much of it there is.
Choosing Between A Cash-Out Refinance And Specialist Finance
There are two realistic routes, and they suit very different files. A conventional equity release through a mainstream lender offers the sharpest interest rates but is policy-sensitive about tax debt, while specialist lenders are more purpose-aligned and typically charge more for that flexibility.
When A Conventional Equity Release May Be Considered
If you have strong income evidence, up-to-date tax returns and clean repayment history, a standard cash-out refinance may be available. Cash-out is usually approved for a stated purpose, and many lenders have tight policy around funding tax liabilities.
Some lenders will decline the application as soon as they become aware of an outstanding ATO debt. Others may consider the application with an accountant’s letter and assess the ongoing ATO payment plan as a liability. There are also lenders that may consider an equity release against the property to pay out the ATO debt in full. This is a grey area, so the purpose needs to be disclosed honestly and matched to a lender whose policy genuinely allows it. Presenting it any other way is not an option worth entertaining.
When Specialist Lending May Be More Realistic
Where mainstream policy will not support the purpose, a specialist lender or non-bank lender may. These lenders often accept alternative income evidence such as bank statements, a low doc loan declaration or an accountant’s letter, and they are typically comfortable with the tax debt purpose itself.
The trade-off is price. Expect higher interest rates, establishment fees and sometimes shorter terms. In practice, many borrowers treat it as a bridge: clear the debt, rebuild the financials over 12 to 24 months, then look at refinancing to mainstream pricing.
Why A Lower Monthly Repayment Does Not Always Mean Lower Cost
A $120,000 tax debt spread over 28 years at a mortgage rate feels far easier month to month. Total interest charges can still exceed what a shorter, sharper repayment plan would have cost.
The fix is usually a plan, not a product: keep repayments at the level you were already paying the ATO, or split the extra borrowing onto a shorter loan term so the cash flow relief does not quietly become a 30-year cost.
Comparing An ATO Payment Plan With External Finance
A payment plan with the Australian Taxation Office is often the simplest first step, and for smaller balances it may be all you need. The comparison gets more interesting once you weigh the daily general interest charge, the commitment to stay current on future lodgements, and the setup costs of external finance.
The General Interest Charge And Its Daily Accrual
The ATO general interest charge is currently 11.43% p.a. for 1 July to 30 September 2026, calculated daily on the unpaid balance and reset each quarter. Daily accrual matters: interest is charged on interest already added.
On a $100,000 tax bill, that is roughly $11,400 over a year if nothing is repaid. Since 1 July 2025, GIC is no longer deductible, so there is no tax offset softening that cost. Whether interest on a replacement loan is deductible depends on your circumstances and the purpose of the borrowing, and that is a question for your accountant.
Payment Plan Commitments And Future Tax Obligations
An ATO repayment plan generally requires you to make each instalment on time and stay current on new tax liabilities as they fall due. For SMEs, sole traders and small business owners with lumpy income, that second condition is often the harder one.
Miss instalments or fall behind on new BAS obligations and the arrangement can be cancelled, which brings the full balance back into play. Any refunds you are owed may also be applied against the debt.
Comparing Fees, Rates And Repayment Timeframes
| ATO payment plan | Property-backed refinance | |
|---|---|---|
| Interest | GIC, currently 11.43% p.a., daily, non-deductible | Loan rate; varies by lender and pathway |
| Setup cost | Generally none | Valuation, application, discharge and legal fees |
| Security | Unsecured | Secured against your property |
| Term | Typically short, often 12 to 24 months | Can run to the balance of your loan term |
| Flexibility | Cancels if terms are missed | Fixed contractual repayments |
For a modest personal tax debt you can clear within a year, a payment plan is often the cleaner answer. For larger business debt with interest expenses compounding daily, external finance starts to look more compelling.
Credit, Compliance And Property Risks To Assess First
Before you commit, look at three things: what an unmanaged ATO tax debt may do to your credit file, what changes when unsecured debt becomes secured against your home, and what obligations you carry personally as a company director.
How Unmanaged Tax Debt Can Affect Credit Access
The ATO can report certain business tax debts to credit reporting agencies such as Equifax and illion where the debt is above a threshold, the business has an ABN, and there is no effective payment arrangement in place. A tax default recorded on your credit file can sit there for years.
That does not always stop you borrowing, but it narrows your options and often moves you into specialist pricing. Acting while your credit history and credit rating are still intact usually gives you more choice than acting afterwards. Lenders also watch your credit score alongside recent repayment conduct.
Protecting Your Home When Converting Unsecured Debt
This is the part worth sitting with. An ATO debt is unsecured. Once refinanced, it is secured against your home, and missed repayments put the property at risk in a way the tax debt did not.
Ask yourself honestly whether the new repayment fits your income across a quiet quarter, not just a good one. If the answer depends on everything going right, a smaller borrowing amount or a payment plan may be the safer structure.
Director Obligations And Early Professional Support
Company directors can be personally liable for unpaid PAYG withholding, GST and super through a director penalty notice. That personal exposure is a strong reason to seek advice early rather than waiting for correspondence to escalate.
Costs, Tax Treatment And A Practical Next-Step Checklist
Documents To Prepare Before Seeking An Assessment
Having these ready shortens the process considerably:
- Two years of tax returns and notices of assessment, where available
- Recent BAS lodgements and an ATO statement of account showing the current balance
- Three to six months of business and personal bank statements
- Current mortgage statements and rates notice for each property
- An accountant’s letter if you are relying on alternative income evidence
- Details of any existing payment plan, including instalment amounts and history
Kingslend Financial’s annual mortgage health checks are a useful way to keep the structure under review once the debt is cleared, so you are not still paying specialist pricing years later.
Frequently Asked Questions
Can I refinance my tax debt with the Australian Taxation Office?
Not with the ATO itself. The ATO offers payment plans rather than refinancing, so a refinance means borrowing from a lender and using those funds to pay the ATO balance out, usually at settlement.
What are the eligibility requirements for refinancing an outstanding tax bill?
Lenders generally look for enough property equity to keep the loan within their LVR limits, demonstrated serviceability on the larger balance, acceptable income evidence and reasonable repayment conduct. Requirements vary widely between mainstream and specialist lenders.
Will refinancing an ATO debt affect my credit score?
A new loan application creates an enquiry on your credit file, and a refinance changes the accounts recorded there. Clearing an ATO debt before it is reported as a tax default may help protect your credit position, though outcomes depend on your broader credit history.
Can I use a business loan to pay off overdue tax obligations?
Yes, some lenders offer business or property-backed facilities specifically for clearing ATO debt. Pricing, terms and documentation differ from home loan products, so compare the total cost rather than the headline rate alone.
What interest rates and fees apply when refinancing tax debt?
Conventional refinances sit at standard home loan rates, while specialist finance typically prices higher to reflect the purpose and documentation. Budget for discharge, application, valuation and legal fees, plus any exit fees on shorter-term facilities.
What happens if I cannot repay my ATO payment plan?
The arrangement can be cancelled, the full balance may become payable, and the general interest charge keeps accruing daily on what remains. Contacting the ATO before you miss a payment usually gives you more options than waiting.
