Using a Term Deposit as Security Instead of a Cash Deposit

Buyers who already hold a term deposit sometimes prefer to use it as security for a bank guarantee rather than break the term deposit early or find separate cash to pay a deposit on a property purchase. This arrangement works differently to a deposit bond, and it comes with its own set of practical steps that your conveyancer needs to manage carefully around exchange and settlement.

How the Arrangement Works

Rather than paying cash to the vendor's representative at exchange, your bank issues a guarantee, sometimes called a bank undertaking, that is secured against your existing term deposit. The vendor's solicitor or conveyancer holds this guarantee in place of the cash deposit, and your term deposit remains locked with the bank as security for the full term, continuing to earn interest in the meantime. If the purchase settles normally, the guarantee is returned to your bank and cancelled without ever being called upon, and your term deposit is released once the guarantee is no longer required.

Why This Differs From a Deposit Bond

A deposit bond is issued by an insurer or specialist provider based on an assessment of your ability to complete the purchase, whereas a bank guarantee secured against a term deposit is backed directly by your own funds sitting with the bank. This generally makes the guarantee more straightforward for a vendor's representative to accept, since there is no third-party insurer's creditworthiness to consider, only your bank's guarantee against cash it is already holding. The trade-off is that your term deposit funds remain tied up and inaccessible for other purposes for as long as the guarantee is in place.

Getting the Vendor's Agreement Before Exchange

As with a deposit bond, a bank guarantee needs to be accepted by the vendor, and the contract of sale should include a special condition permitting this form of security rather than a cash deposit. Your conveyancer's role is to negotiate this condition into the contract before exchange, confirm the vendor's solicitor is comfortable with the specific bank issuing the guarantee, and make sure the guarantee document itself matches the deposit amount required under the contract exactly.

What Happens at Settlement

At settlement, the full purchase price is paid in the ordinary way, including the amount that the guarantee was covering, and your conveyancer arranges for the bank guarantee to be returned and cancelled once settlement has been confirmed as complete. Your bank then releases the term deposit from its role as security, and the funds become accessible again on the term deposit's usual terms, or upon maturity if the term had not yet ended. If the purchase does not complete for a reason that is your responsibility under the contract, the vendor can call on the guarantee, and the bank will pay out from your term deposit accordingly.

Timing Considerations Your Conveyancer Manages

Setting up a bank guarantee takes time, since your bank needs to process the application, confirm the term deposit is unencumbered, and issue the formal guarantee document before exchange can occur. It is worth starting this process as soon as you are seriously considering a property, rather than waiting until you are ready to sign a contract, since a delay in obtaining the guarantee can hold up exchange at a point when a vendor is expecting to finalise quickly. Your conveyancer can advise on realistic lead times based on what similar clients have experienced with different banks.

What If the Term Deposit Matures Before Settlement

Because term deposits run for a fixed term, it is worth checking whether your term deposit's maturity date falls before or after your expected settlement date. If the term deposit matures while it is still securing a bank guarantee, your bank will generally need to either roll the term deposit over for a further period or convert the arrangement into a different form of security, and this needs to be arranged in advance rather than discovered at the last minute. Your conveyancer cannot manage this side of the arrangement directly, since it sits between you and your bank, but flagging the maturity date early means it can be built into the overall settlement timeline rather than becoming an unexpected complication close to settlement day.

Using This Approach for a Simultaneous Purchase and Sale

Term deposit security can be particularly useful for buyers who are purchasing a new property while also selling an existing one, since it avoids needing to find deposit cash at a point where funds are still tied up in the property being sold. In this scenario, your conveyancer needs to track two separate transactions, the purchase where the guarantee applies and the sale that will eventually free up the underlying funds, and make sure the guarantee is not released or cancelled before the purchase has actually settled. Coordinating this properly is similar in principle to managing a property transfer alongside a separate purchase, in that both transactions need to be tracked together rather than treated as entirely unrelated matters.

Is This the Right Option for You

Whether a term deposit guarantee makes sense depends on your broader financial position, including whether breaking the term deposit early would involve a real cost to you, and whether you would prefer to keep your funds earning interest rather than sitting with a conveyancer as a cash deposit. The MoneySmart guide to saving for a house deposit is a useful starting point for comparing deposit options generally, and your conveyancer can talk through how this specific structure would apply to your residential purchase once you have discussed the practicalities with your bank.