A South Dakota Irrevocable Letter of Credit is a financial instrument that provides a guarantee of payment to a beneficiary by a bank or other financial institution. The letter of credit is issued by the bank or financial institution and is irrevocable, meaning it cannot be amended or revoked without the agreement of all parties involved. This type of letter of credit is commonly used in international trade or other situations where there is a need for a guarantee of payment. It is also used in construction and real estate transactions. There are two main types of South Dakota Irrevocable Letters of Credit: Standby Letters of Credit and Commercial Letters of Credit. Standby Letters of Credit are typically used as a form of financial assurance in situations where there is potential for the seller or borrower to default on payment. Commercial Letters of Credit are used to secure payment for goods or services that have been shipped or delivered, ensuring that payment will be received by the seller or creditor.