David Securities Pty Ltd v Commonwealth Bank of Australia

David Securities Pty Ltd (the plaintiff) brought proceedings against the Commonwealth Bank of Australia (the defendant) seeking declarations that certain loan agreements were void and unenforceable. The plaintiff alleged that the agreements were void for illegality, as they involved the payment of interest at rates exceeding the statutory limit imposed by the *Securities Industry (Interest Rates) Regulations* (Cth) (the Regulations). The matter proceeded to the High Court of Australia.

The High Court was required to determine whether the loan agreements were void for illegality under the Regulations, and if so, whether the plaintiff was entitled to recover the interest paid under those agreements. A further issue was whether the plaintiff was estopped from asserting the illegality of the agreements, or whether the doctrine of *ex turpi causa non oritur actio* (from a dishonourable cause an action does not arise) precluded recovery.

The High Court held that the loan agreements were void for illegality as they contravened the Regulations. However, the Court also found that the plaintiff was not estopped from asserting the illegality, nor was the *ex turpi causa* doctrine applicable to prevent recovery of the moneys paid. The Court reasoned that the purpose of the Regulations was to protect borrowers, and allowing a lender to rely on illegality to retain moneys paid would undermine this protective purpose. The Court adopted a purposive approach to statutory interpretation, considering the legislative intent behind the Regulations.

The High Court ordered that the plaintiff was entitled to recover the interest paid under the void loan agreements.