A Letter of Wire Instructions is a document used to provide instructions for transferring funds from one financial institution to another. It is typically used when transferring funds for large sums of money, such as for the purchase of a house or business. The document will specify the bank account to be debited and the bank account to be credited, as well as the amount to be transferred. The letter should also include the name of the person or entity sending the funds, the name of the recipient of the funds, and any additional instructions for the financial institution to follow. There are two main types of Letter of Wire Instructions: Domestic and International. Domestic Wire Instructions are used to transfer funds to a recipient in the same country, while International Wire Instructions are used to transfer funds to a recipient in a different country.