Adding transactions in a foreign currency ($US), QuickBooks Online will calculate the amounts and GST in $US on the sales forms. Not to worry, your reports convert all foreign currency to home currency amounts, and automatically reflect exchange rate changes.
You can pull up the Transaction List by Date report to show all your transactions in a specific period, which can be customized to show the foreign amount, exchange rate, and GST.
Go to the Reports menu.
In the Find report by name field, type in "Transaction List by Date."
Click on the Customize button.
Modify the reporting date.
Under the Rows/Columns section, click Change columns.
Select the Exchange Rate, Foreign Amount, and GST checkbox.
Click Run report.
For additional insights about GST and Multicurrency, check our these articles: