Can a guarantor be removed from my mortgage later, and how?

Yes — a guarantee can be released later, but it isn’t automatic and there’s no fixed date it happens by. Lenders release a guarantor once the conditions in the guarantee agreement are satisfied, and the condition that comes up most often is the borrower’s own equity in the property having grown enough that the loan no longer needs the guarantor’s property standing behind it. The specific equity level and process a lender requires is set by that lender, not by a common industry standard.

What does “releasing” a guarantor actually mean?

Releasing, or discharging, a guarantee means the lender formally removes the charge over the guarantor’s property and confirms the loan is no longer secured against it. From that point the guarantor has no further liability on the loan, and the security is limited to the property being bought. Our guide to how guarantor home loans work covers what the guarantee secures in the first place.

What generally has to happen before a lender will consider releasing a guarantor?

The general idea sitting behind most lenders’ policies is a loan-to-value ratio, or LVR — the loan balance measured as a percentage of the property’s value. Lenders mortgage insurance is usually payable once that ratio passes 80%, as at July 2026, which is part of why a guarantor’s extra security is used in the first place: it lets a loan proceed above that level without LMI being charged. As the loan balance falls, and separately as the property’s value moves, that ratio changes — and once it falls to a level the lender is comfortable with, the guarantor’s additional security may no longer be needed.

Two things move that ratio, and only one of them is within anyone’s control:

Loan-to-value ratio = loan balance ÷ property value

Repayments reduce the loan balance in a predictable way. Property values don’t move predictably in either direction — they can rise, plateau or fall, and a fall pushes the ratio the wrong way regardless of how many repayments have been made. That’s why release depends on both factors together, and why it can’t be worked out from a repayment schedule alone.

In practice, getting to that point commonly involves the borrower or guarantor asking the lender to review the loan, the lender arranging its own valuation of the property, and the lender checking the result against its own release policy — which may also look at repayment history and whether repayments have been on time.

What’s involved in weighing up when to ask for a release?

There’s a cost side to consider as well as a timing side. A lender-ordered valuation may carry a fee, and asking too early — before the loan has genuinely reached the equity level the lender wants — risks a declined request, or a requirement to pay LMI to cover the remaining gap instead of releasing the guarantee. Asking later than necessary means the guarantor’s property stays exposed to the loan, and their own borrowing capacity may keep being affected by it, for longer than the arrangement strictly required. Refinancing to a new lender without a guarantor is sometimes raised as an alternative path to release, but that carries its own separate costs and a fresh credit assessment, and isn’t a shortcut around the same underlying equity question.

So when will a guarantor actually be released?

There’s no date or dollar figure this article — or any general guide — can promise, because release depends on meeting a specific lender’s conditions, and those conditions aren’t published as a single standard across the industry. Property values are also outside anyone’s control, which means even steady repayments don’t guarantee a release by any particular time. The reliable next step is to ask the lender directly, or through a mortgage broker, what its release policy actually requires for the loan in question — and to revisit that conversation as the loan and the market move.

For how the original guarantee arrangement works, see our guide to guarantor home loans, and where a parent’s property equity is what’s securing the loan, our guide to using a parent’s equity as a home deposit covers how that’s typically structured. For the range of ways first home buyers approach a deposit more broadly, see our guide to how much deposit you need for a first home.