The ATO wants security over your home for a payment plan: should you agree?

The phone call with the ATO went better than you feared. They’ll consider a longer plan for the tax debt. Then comes the catch: they’d like security, and the property they have in mind is the one your family lives in.

It’s a fair request from the ATO’s side. It’s also one of the biggest financial decisions you can make on a single phone call. Here’s how to think it through calmly before you agree to anything.

Why is the ATO asking for security at all?

Most business tax debts never get near this point. The ATO’s self-service options let many businesses set up a plan online or through the automated phone line, provided the debt is $200,000 or less and the business hasn’t defaulted on or cancelled two or more plans in the past 12 months.

Outside those settings, you’re talking to a person, and they’ll want to understand why you can’t pay on time, plus your income, expenses and assets. If the two sides can’t land on ordinary terms, the ATO’s alternative payment plans page says it may consider an offer of security instead. In practice that tends to happen when:

• the debt is large compared with what the business can pay each month;
• the instalments you can afford would stretch over a long period;
• earlier plans have defaulted, so the ATO wants more than a promise this time.

In other words, security is the ATO’s way of saying “we’ll give you time, but we want something to fall back on”.

What would you actually be signing?

The ATO’s preferred security is a registered mortgage over freehold property. The other common form is an unconditional bank guarantee from an Australian bank. Here’s what each really means for you.

A mortgage to the ATO. It’s registered on your title like any other mortgage. If the plan holds, it’s released once the debt is paid. If the plan fails, the ATO is a secured creditor with the right to enforce against that property. It also sits on the title for anyone to see, which matters if you later want to refinance, sell or borrow against the same property for something else.

A bank guarantee. This sounds like it keeps the house out of it, but banks rarely issue a guarantee without security of their own. Often that’s cash held in a term deposit or, you guessed it, a mortgage over property. So the house can end up behind the arrangement anyway, with the bank in the middle.

The part company directors miss. If the tax debt belongs to your company, it’s the company’s debt. Your house is only at risk if something makes it personal, such as a director penalty. Giving the ATO a mortgage over your home to secure the company’s plan, usually with a personal guarantee alongside, is a voluntary way of making it personal. That may still be the right call. It should be a decision, not a box ticked to get off the phone.

If someone else is on the title, they’ll need to sign too. Our page on talking to co-owners has a gentle way to open that conversation, and it’s worth reading before the ATO’s paperwork arrives on the kitchen table.

What does a secured plan get you, and what does it cost?

To be fair, it buys real things:

• Time. The debt can be repaid over a period the business can sustain, instead of facing firmer recovery action.
• Engagement. The ATO’s credit-reporting criteria only apply to businesses with at least $100,000 more than 90 days overdue that aren’t effectively engaging to manage it. Complying with a payment plan counts as engaging.
• No new lender. You’re dealing with the creditor you already have.

And it costs real things:

• GIC keeps running. The general interest charge accrues on payment plan balances and compounds daily. For GIC incurred from 1 July 2025, the ATO says it’s no longer deductible, so a long plan now costs more after tax than it used to. Our guide to funding a tax debt now GIC isn’t deductible works through that maths.
• Every new lodgement has to be on time too. A secured plan can still default if fresh BAS or super obligations slip. The difference is that now there’s property behind it.
• The property is tied up until the last instalment, which can block other plans for that equity.

How does it compare with clearing the debt another way?

This is the decision that matters. Rather than “should I agree to the ATO’s terms?”, ask “what’s the calmest way to deal with this debt, all things considered?”

Option	Can make sense when	Think again if
Secured ATO payment plan	The plan is short, the business can clearly afford the instalments, and you’d rather not add a lender	The plan runs for years and GIC would pile up, or earlier plans have already defaulted
Bank guarantee to the ATO	You hold cash or a facility your bank will happily back it with	The bank wants your home as its security anyway, so nothing has really changed
Business-purpose second mortgage to pay the ATO out	Clearing the debt in one step unlocks something, such as a bank refinance, a tender or a clean slate, and there’s a believable exit	The business is still falling behind on new tax, or there’s no clear way to repay
Unsecured business funding	The debt is modest and the business trades steadily with healthy bank statements	The amount is beyond what turnover supports
Selling an asset	There’s an investment property, vehicle or equipment you can sell without hurting the business	A forced sale would lose too much value or cripple trading
Formal advice on restructuring	The business can’t realistically recover its position, whichever way the debt is funded	You haven’t yet tested the simpler options

Our page on using home equity for an ATO debt covers the purpose in general terms. The point here is narrower: if your home is going to back the tax debt either way, it’s worth asking who you’d rather have holding that mortgage, on what terms, and for how long.

If you’d like a second opinion on how those options stack up for your figures, tell us about the debt and the property and a specialist will give you an honest read, even if the answer is “take the ATO’s plan”.

When might the ATO’s terms be the sensible choice?

Agreeing to the ATO’s security can be perfectly reasonable when:

• the plan is relatively short and the instalments are comfortable, not hopeful;
• the cause of the debt has been fixed, for example GST and PAYG now go into a separate account each week;
• you have no use for that equity during the plan;
• everyone on the title understands and has had independent advice.

When is paying it out the calmer path?

Clearing the debt with other funding tends to come out ahead when:

• the plan would run a long time, so non-deductible GIC keeps compounding;
• a mainstream refinance is waiting for the ATO debt to disappear, which makes the payout loan short-term by design;
• the business needs that property’s equity for something else in the next year or two;
• several plans have already defaulted, so one clean step beats another fragile arrangement with the house behind it.

Either way, borrowing doesn’t make a debt smaller. It moves it. The exit plan guide helps you test whether the way out is real before you sign anything.

A worked example (illustrative only)

A building company owes the ATO $310,000, mostly GST and PAYG withholding from a year when two large clients paid late. That’s above the self-service threshold. The directors propose a plan of about four years. The ATO is open to it, but asks for a registered mortgage over the directors’ home, worth about $1,400,000 with $560,000 owing.

Path A: the secured ATO plan. The ATO’s mortgage sits behind the home loan. Combined debt starts at $870,000, or about 62% of the home’s value. GIC keeps compounding for four years with no deduction, and the equity is tied up for the whole period.

Path B: pay the ATO out. The directors take a business-purpose second mortgage of $310,000 and clear the debt in full. Combined debt is the same $870,000, about 62%. Inside an 80% combined LVR band, which would allow about $1,120,000, that leaves a cushion of roughly $250,000. Their bank has said it will refinance the company’s facilities once the ATO debt is gone and the latest return is lodged, so the exit is a refinance within about a year, with the sale of a spare excavator as the fallback.

On these numbers Path B looks calmer, mainly because the exit is specific and the GIC clock stops. If the bank hadn’t committed, Path A could well have been the wiser choice. You can test your own figures with the equity decision helper.

Before you say yes to anyone

1. Get the full payoff figure from the ATO, including GIC to date.
2. Ask your accountant to compare the total after-tax cost of each path over the time it would really run.
3. Have a solicitor read any mortgage or guarantee before you sign it, and make sure every person on the title gets their own advice.
4. Call the Small Business Debt Helpline on 1800 413 828. The service is free and its financial counsellors help with ATO arrangements and personal guarantees.
5. Keep lodging and keep talking to the ATO while you weigh it up. Going quiet is what turns a negotiation into recovery action.
6. Think about the family home separately. Our page on protecting the family home is a useful prompt for that conversation.

The ATO isn’t the only one who’ll talk to you about the property

If the ATO is asking for your home as security, the equity is already on the table. The question is how to use it most sensibly. That might mean taking the ATO’s plan. It might mean paying the debt out and stopping the GIC with a loan that has a clear way out. We help business owners with tax debts every week, and we don’t flinch at an ATO balance.

Telling us about it takes about a minute. Asking won’t touch your credit file. Nothing is checked unless you choose to go further. Your details stay with one specialist and are never passed around to a crowd of lenders, so you won’t be fielding calls from strangers. A real person will look at the debt, the property and your exit, then ring you for a straight conversation, including if the honest answer is “the ATO’s offer is fine”.

Please fill in the form accurately: the property’s value, what’s owing on it, who’s on the title, the ATO balance and any plan in place, how much you need, and how you’d expect to repay. Business purposes only.

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