If you need to submit invoices in more than one currency, use your most common currency in your firm profile's Billing Currency (see How do I access or change my firm's profile information?), and don't change it frequently. When a currency different than the profile currency is required, specify that currency within individual invoices. (For LEDES invoices see LEDES98BI V2 Format Specifications. For manual invoices, see Help with Creating Invoices).