To be able to contract in a currency other than AUD:
1. Add new bank details with the nominated foreign currency e.g. USD.
2. To add new bank details, follow the steps as outlined in the Create and edit bank details article and select the desired currency.
3. To nominate this foreign currency in a contract, select the currency in the foreign exchange section in the contract and all foreign currencies as reflected in your bank details will be available to select.