Can I trade multi-currency products in my IRA account?

If you have requested an IRA account with margin permissions you may trade products which are denominated in a currency other than that of your designated Base Currency. However, as IRA accounts, by regulation, are not allowed to borrow cash (i.e., have a debit balance in any currency type), you would need to first convert a sufficient amount of your current cash balance into the currency in which the product is denominated prior to entering your order to purchase that product. This conversion can be transacted on our IdealPro platform if greater than USD 25,000, or equivalent, or the odd lot venue if below USD 25,000…

If you see a cash balance other than your Base Currency in your account, this is likely the result of one of the following events:

• You performed a currency conversion. 
• You deposited funds denominated in a currency other than your Base Currency. …

IBKR Australia only supports currency balances in AUD, USD, HKD, EUR and GBP, and clients are able convert between these currencies as described here: How can I convert currency? If you hold cash balances in currencies other than IBKR Australia supported currencies (AUD, USD, HKD, GBP or EUR), they will to be converted into your nominated base currency…

You can elect to attach an FX Order in cases where you are buying a contract in a currency other than your base, and want to convert base currency to the currency of the contract to cover the cost of the trade.

To attach an FX order in Classic TWS…