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Guarantor Home Loans
A decision for two households, not one. We explain it properly to both of them.
Guarantor lending
Family guarantees, explained to the people taking the risk
A family guarantee lets a buyer with a small deposit borrow without paying lender mortgage insurance, by using equity in a parent property as additional security. The parents do not give the buyer money. They put a limited portion of their own property on the line, usually enough to top the deposit up to 20%. If the buyer defaults and the sale leaves a shortfall, the parents cover that shortfall. The guarantee can be released later, typically in three to six years.
Guarantor loans get explained to the buyer. They rarely get explained properly to the people taking the risk. We run these conversations with both generations in the room, and it usually takes about an hour.
If the answer is that a guarantee is the wrong structure for your family, we will say so. That happens more often than you would expect, and it is usually because the parents have plans of their own in the next few years.
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Guarantor Loans
What we can help you with
No Cash Needed From Parents
Security comes from home equity, not a cash transfer. No money leaves the parents account.
Limited, Not Unlimited
The guarantee is capped at a stated dollar figure. If a lender will not limit it, we use a different lender.
Avoid Lenders Mortgage Insurance
A guarantee can remove the LMI requirement entirely, commonly saving $28,000 to $34,000 on an $800,000 purchase.
Gift, Loan or Guarantee
Three different structures with three different risk profiles. We price all three before anyone decides.
Guarantee Release Planning
Release does not happen automatically. We diarise it and check the position every year.
Guarantor Capacity Impact
A guarantee reduces what the parents can borrow. We give them that figure before they sign, not after.
What the guarantee actually is
A family guarantee is a second mortgage over a limited portion of the guarantor property. It is security, not cash. No money moves from the parents account, and the parents do not become liable for the buyer ongoing repayments. What they do is give the lender a fallback if things go badly.
The lender is solving a specific problem with it. A buyer with a 5% deposit is a higher risk than one with 20%, so the lender charges lender mortgage insurance to cover that gap. If a parent equity fills the gap instead, the insurance is not needed. That is the entire mechanism.
| Item | Without a guarantee | With a family guarantee |
|---|---|---|
| Purchase price | $800,000 | $800,000 |
| Buyer own deposit | $40,000 (5%) | $40,000 (5%) |
| Loan amount | $760,000 | $760,000 |
| Lender mortgage insurance | Roughly $28,000 to $34,000, added to the loan | Nil |
| Security taken | The buyer property only | The buyer property plus a limited guarantee over the parents property |
| Typical guarantee amount | Not applicable | Around $160,000 to $180,000 |
Illustrative figures only. LMI premiums vary by lender, loan size and deposit. Your own numbers will differ.
Limited versus unlimited
The single most important thing to check before signing. A limited guarantee caps the parents exposure at a stated dollar figure. An unlimited guarantee does not, and puts the whole of the parents property behind the whole of the buyer loan.
Some lenders still offer unlimited guarantees. There is almost never a good reason to accept one. If a lender will not limit the guarantee, that is a reason to use a different lender rather than a reason to sign.
What the parents are actually putting at risk
The guaranteed amount, and only that, where the guarantee is limited. If the buyer stops paying, the lender does not go straight to the parents. The sequence is:
- The lender works with the borrower on hardship arrangements.
- If that fails, the lender takes possession of and sells the buyer property.
- Sale proceeds pay down the loan.
- If a shortfall remains, the lender calls on the guarantee, up to the guaranteed limit.
- If the parents cannot pay that shortfall in cash, the lender can recover it against their property.
That last step is the one families do not picture. It is unlikely, but it is the thing being agreed to, and it deserves to be said out loud rather than left in a document.
The second cost nobody mentions
A guarantee reduces the parents own borrowing capacity while it is in place, because lenders treat the guaranteed sum as a contingent liability. If the parents are thinking about a renovation, an investment purchase, a car loan or a downsize in the next few years, the guarantee makes each of those harder.
We ask this question early, and it changes the answer more often than people expect. A couple planning to downsize in two years is usually better served by a smaller gifted deposit, or by the buyer paying the insurance, than by a guarantee that ties up their equity right when they need it.
Getting the guarantee released
The guarantee is not permanent. Once the loan balance drops below 80% of the buyer property value, it can be released. Two things move that number: the buyer paying the loan down, and the property growing in value.
| Lever | How it works | Typical timeframe |
|---|---|---|
| Regular repayments | Principal reduction on a P&I loan | Slow early, most of an early repayment is interest |
| Capital growth | Value rises so the same debt is a lower LVR | Unpredictable, but usually the bigger lever |
| Lump sum payments | Bonuses, tax refunds, a gift directed at the loan | Immediate effect on the balance |
| Revaluation | A new valuation once you believe you are under 80% | 1 to 2 weeks, costs little or nothing |
Three to six years is the usual span. The important part is that release does not happen by itself. Someone has to apply, the lender orders a valuation, and if the numbers work the second mortgage is discharged.
We diarise this and check it every year at the loan anniversary, because a guarantee left in place years longer than necessary is a cost the parents are paying for nothing.
Alternatives worth pricing first
A guarantee is one way to solve a deposit shortfall, and it is the only one that puts a second household property at risk. Price the alternatives honestly before committing.
| Option | Cost to the buyer | Risk to the parents | Best where |
|---|---|---|---|
| Family guarantee | No LMI, standard rates | Guaranteed amount at risk, capacity reduced | Buyer income is strong, timing is the only problem |
| Pay LMI | Roughly $28,000 to $34,000 on an $800k purchase, usually capitalised | None | Parents need their equity, or want no exposure |
| Gifted deposit | No LMI if it reaches 20%, needs a gift letter | Cash is gone, but no ongoing liability | Parents have cash rather than equity |
| First Home Guarantee | No LMI with a 5% deposit, subject to caps and eligibility | None | Eligible first home buyers under the price cap |
| Wait and save | Opportunity cost if the market moves | None | Buyer is close to 20% and prices are flat |
Illustrative only. LMI premiums, scheme caps and eligibility change. Figures current at September 2026.
The comparison that surprises people most often is the gifted deposit against the guarantee. Where parents have cash rather than equity, a gift is usually cleaner: the money is gone either way in the worst case, but a gift ends the moment it is made, while a guarantee sits on their file for years and quietly reduces what they can do.
The second surprise is that lender mortgage insurance is sometimes the better answer. It has a bad name, but it is a defined, one-off, capitalised cost that buys the parents complete freedom from the transaction.
Questions parents should ask before signing
- Is the guarantee limited, and to exactly what dollar figure? Get the number in writing.
- What is the release trigger, and who applies for it? Confirm the LVR threshold and the process.
- How much does this reduce our own borrowing capacity? Ask for the figure before, not after.
- What happens if we want to sell our house while the guarantee is in place? It is possible, but the guarantee has to be dealt with first.
- What happens if one of us dies, or the relationship ends? Guarantees survive both, and estates get complicated.
- Has everyone had independent legal advice? Most lenders require it for guarantors. Take it seriously rather than treating it as a formality.
When a guarantee is the right call, and when it is not
It works well where the buyer has stable income and genuine capacity to repay, but has not had time to save 20% in a market that moved faster than their savings. The guarantee solves a timing problem rather than an affordability problem.
It works badly where the buyer income is marginal, where the purchase is at the absolute limit of what they can service, or where the parents are close to retirement and will need their equity. In those cases the guarantee does not remove the risk, it moves it onto the household least able to carry it.
The process
How a guarantor loan runs
Four to six weeks from first meeting to settlement. The independent legal advice step is the one most likely to add time, so we book it early.
- 1Day 1, about an hour
Both households in the room
The buyer position, the parents position, and what each of them is planning over the next five years. This is where most of the honest conversation happens.
- 2Days 2 to 4
The three options priced
Guarantee, gift and lender mortgage insurance, with real numbers for each, plus the impact of a guarantee on the parents own borrowing capacity.
- 3Days 4 to 7
Lender selection
Not all lenders offer limited guarantees, and those that do differ on the release process and on how much of the parents property they will take. We only use limited guarantee structures.
- 4Week 2
Application and two valuations
Both the buyer property and the parents property are valued, because the guarantee amount is calculated from both.
- 5Week 2 to 3
Independent legal advice for the guarantors
Most lenders require it. Book it early, because it is the step most likely to delay a settlement. The parents see their own solicitor, not the buyer solicitor.
- 6Week 3 to 4
Approval and loan documents
We check the guarantee is limited to the figure agreed, in writing, before anyone signs. This is the moment to catch an unlimited guarantee, not afterwards.
- 7Week 4 to 6
Settlement
The purchase settles and the second mortgage is registered over the guarantor property for the limited amount.
- 8Every 12 months
Release check
We revalue the position each year at the anniversary and apply for release as soon as the loan is under 80% of value. Nobody has to remember to ask.
FAQ
Common questions about guarantor loans
Answers to the questions we are asked most often. If yours is not here, ask us directly.
In a properly structured family guarantee, the guarantor guarantees a limited portion, usually the shortfall between the buyer deposit and the 20% the lender wants, plus costs. On an $800,000 purchase with a $40,000 deposit, that is commonly around $160,000 to $180,000 rather than the full $800,000. Unlimited guarantees still exist at some lenders and should be avoided.
Yes. Once the loan balance falls below 80% of the property current value, you can apply to have the guarantee released. That usually happens through a combination of repayments and capital growth and typically takes three to six years. Release is not automatic, someone has to apply, and a valuation is required.
The lender pursues the borrower first, including selling the security property if it comes to that. The guarantor is called on only if a shortfall remains after that. If there is a shortfall, the guarantor pays it, and if they cannot, the guaranteed portion is recovered against their property.
It reduces their capacity. Lenders treat the guaranteed amount as a contingent liability, so it eats into what the parents can borrow for their own purposes, including a renovation or a downsize. If the parents have plans of their own in the next few years, that needs to be part of the conversation before signing.
Usually an immediate family member, most commonly a parent. Some lenders accept grandparents, siblings or in some cases other close family. The guarantor generally needs to own property with sufficient equity, and most lenders want them to be an Australian citizen or permanent resident.
No. They need enough usable equity to cover the guarantee amount. On a home worth $1.1 million with a $300,000 loan, there is generally ample room for a $180,000 guarantee. What matters is the combined position, not whether their loan is fully repaid.
Yes, but the guarantee has to be dealt with first, either by releasing it if the buyer loan is now under 80% of value, by substituting another security, or by repaying enough of the buyer loan to release it. It adds a step and it is why a release plan matters.
The guarantee generally survives and passes to the estate, which can complicate probate and the distribution of assets. It is one of the reasons we push for a written release plan at the outset and check it every year, rather than leaving a guarantee in place indefinitely.
Almost always. Most lenders require guarantors to obtain independent legal advice and produce a certificate before settlement. Use it properly rather than treating it as a formality. The solicitor is there for the parents, not for the buyer or the lender.
Not always. LMI is a defined one-off cost, commonly $28,000 to $34,000 on an $800,000 purchase, usually capitalised into the loan, and it involves nobody else. A guarantee avoids that cost but puts a second household property at risk and reduces their borrowing capacity for years. Which is better depends on the family, and we price both.
Some lenders allow it and many restrict guarantees to owner occupied purchases. Where it is allowed, the terms are usually tighter. It is a narrower market than a guarantee for a first home, so lender selection matters more.
A gift is cash, given and gone, with no ongoing liability for the parents. A guarantee is security, with no money moving, but with a contingent liability that sits on the parents position for years. Where parents have cash, a gift is usually the cleaner structure. Where they have equity but not cash, a guarantee is the way to use it.
Yes, almost always. Lenders want a signed statutory declaration or gift letter confirming the money is a genuine gift and not a loan that has to be repaid, because a repayable loan would be an undisclosed liability affecting servicing.
Generally not at the same time, as they solve the same problem in different ways. If you are eligible for the First Home Guarantee and under the price cap, that is usually the simpler path because it avoids involving a second household at all. We check eligibility before recommending a family guarantee.
Check it every year. Most guarantees become releasable in three to six years, driven mostly by capital growth rather than repayments. Waiting for the lender to raise it is a mistake, because they will not. We diarise it and check the position annually for our clients.
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Both generations in the same conversation · Limited guarantees only · A written release plan from day one
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