National Australia Bank Limited v Zaza

The case of National Australia Bank Limited v Zaza involved a dispute where the bank sought summary judgment against the defendant, who was a guarantor in a loan agreement. The bank argued that the guarantor was liable for the outstanding debt despite the primary debtor's bankruptcy. The matter was heard in the Federal Court of Australia. The guarantor, in turn, claimed the defence of equitable set-off, arguing that certain amounts owed by the bank to the guarantor should be deducted from the amount claimed.

The central legal issue that the court had to address was whether a guarantor could rely on the defence of equitable set-off against the creditor. This defence permits the reduction of a debt based on mutual obligations between the parties. The court examined the principles of equity and whether they could be applied to allow a guarantor to assert such a defence. It needed to determine whether the defence of equitable set-off was available to a guarantor and, if so, under what circumstances.

The court held that a guarantor cannot assert the defence of equitable set-off against the creditor unless the facts of the case specifically support it. The defence of equitable set-off is typically available in situations where there are mutual debts between the parties, but this does not automatically extend to a guarantor. In this case, the court found that the guarantor did not provide sufficient evidence to support the application of the defence of equitable set-off. The court concluded that the defence of equitable set-off could only be invoked if it was clearly applicable to the facts of the case. In this instance, the guarantor failed to demonstrate the necessary mutuality of obligations.

Consequently, the court granted the plaintiff's application for summary judgment. The court ruled that the defendant was liable for the outstanding debt as claimed by the plaintiff, and no defence of equitable set-off was applicable. The final order was that judgment was entered for the plaintiff, National Australia Bank Limited.