A letter of credit issued for the purchase and financing of merchandise, similar to acceptance letter of credit, except that it requires presentation of sight drafts which are payable on installment basis usually for periods of 1 year or more. Under this type of credit, the seller is financing the buyer until the stipulated time his drafts can be presented to the bank for payment. There is a significant deference in the bank's commitment, depending on whether the negotiating bank advised or confirmed the letter of credit.

I. An instrument of audit issued by the buyer's bank, at the buyer's request, in which the issuing bank promises to pay the seller upon presentation of documents stipulated in the terms and conditions of the audit

II. A financial document issued by a bank at the request of the consignee guaranteeing payment to the shipper for cargo if certain terms and conditions are fulfilled. Normally it contains a brief description of the goods, documents required, a shipping date, and an expiration date after which payment will no longer be made.- An Irrevocable Letter of Credit is one which obligates the issuing bank to pay the exporter when all terms and conditions of the letter of credit have been met. None of the terms and conditions may be changed without the consent of all parties to the letter of credit.- A Revocable Letter of Credit is subject to possible recall or amendment at the option of the applicant, without the approval of the beneficiary.- A Confirmed Letter of Credit is issued by a foreign bank with its validity confirmed by a U.S. bank. An exporter who requires a confirmed letter of credit from the buyer is assured payment from the U.S. bank in case the foreign buyer or bank defaults.- A Documentary Letter of Credit is one for which the issuing bank stipulates that certain documents must accompany a draft. The documents assure the applicant (importer) that the merchandise has been shipped and that title to the goods has been transferred to the importer.