信用额度指贷方可向借方所借贷的信用资源。某些情况下不须提供财物担保。通常是指自然人向银行借贷，而银行依照个人的信用状况愿意提供借贷的最高金额。

此金额会因为收入、营收、负债比、工作内容、任职企业、公司职位、财产等条件因素，由银行单方面决定的金额。这种借贷关系通常为银行借钱给自然人的情况。而另一方面银行对组织的借贷，通常为商业组织进行跨国交易所必需的商业行为。

由于信用额度是无担保的借贷金额，通常金额并不会太高，而此金额会依照借方所提供的条件而决定。此意味者借方要有越高的信用额度，借方的各种条件都必须相当优良，贷方才会愿意提供越高的借贷金额。

A line of credit is credit source extended to a government, business or individual by a bank or other financial institution. A line of credit may take several forms, such as overdraft protection, demand loan, special purpose, export packing credit, term loan, discounting, purchase of commercial bills, traditional revolving credit card account, etc. It is effectively a source of funds that can readily be tapped at the borrower's discretion. Interest is paid only on money actually withdrawn. (However, the borrower may be required to pay an unused line fee, often an annualized percentage fee on the money not withdrawn.) Lines of credit can be secured by collateral, or may be unsecured.