You can calculate the total SDF payable per person using the online tool available on the Department of Immigration’s website and the Department of Tourism, Bhutan. To make the payment for your tour package, you need to wire-transfer the total amount to the travel agent through certified international partners of Bhutan National Bank (BNB) or Bank of Bhutan (BoB). It’s important to email a copy of the receipt to Marvellous Bhutan Travel Pvt. Ltd for confirmation.