Tier 1 Capital 一级资本
Core capital under the Basel Accords.

A bank's capital was defined as comprising two tiers. Tier 1 ("core") capital included the book value of common stock, non-cumulative perpetual preferred stock and published reserves from post-tax retained earnings. Tier 2 ("supplementary") capital was deemed of lower quality. It included, subject to various conditions, general loan loss reserves, long-term subordinated debt and cumulative and/or redeemable preferred stock. A maximum of 50% of a bank's capital could comprise tier 2 capital.

核心资本又叫一级资本(Tier 1 capital)和产权资本，是指权益资本和公开储备，它是银行资本的构成部分，至少要占资本总额的50%，不得低于兑现金融资产总额的4%。核心资本包括实收资本、资本公积、盈余公积、未分配利润、普通股、优先股、储务账户等。附属资本主要包括一般损失准备金、混合债务工具和次级债券。

《巴塞尔协议》中规定，签署国银行资本充足率要求达到8%即银行的最低资本限额为银行风险资产的8%，核心资本充足率达到4%即核心资本不能低于风险资产的4%。[@more@]