Invoice in Other Currencies

Vikram (Proprietor) (100 Points)

02 May 2010  

Hi,

As a proprietorship firm, If I invoice my international clients for services provided (like web designing) in US dollars and the payment is received in US dollars either via wire transfer/ US dollar Cheque/ or via Paypal (Payment processor), do I need to keep seperate invoice series for usd invoices? Also is it legal to make invoices in other currencies? At what conversion rate should I post the accounting entries?