Tier 1
Capital

The core measure of a bank's financial strength from a regulator's point of view. Learn how to interpret the ratio that protects your large deposits.

Core Equity Significance

Tier 1 capital consists of the most reliable forms of capital, primarily common shares and retained earnings. This "core" capital allows a bank to absorb losses without triggering a cessation of business operations. For a depositor, a high Tier 1 ratio indicates that the institution has a substantial buffer against market volatility.

When performing a Canadian Bank Reliability Assessment, this figure serves as the primary indicator of solvency. It represents the immediate liquid reserves available to cover unexpected credit defaults or operational failures.

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Asset Risk Weighting

0% Risk Weights

Cash and Government of Canada securities are assigned a zero-percent risk weight. These assets require no capital backing because they are considered risk-free under current regulatory frameworks.

Residential Mortgages

Standard residential mortgages typically carry a 35% to 75% risk weight. For a deeper dive into these specifics, see our guide on Assessing Mortgage Portfolio Risk.

Corporate Loans

Unsecured corporate lending often carries a 100% risk weight. This means the bank must hold the full required capital percentage against the total value of these specific loans.

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Operational Calculation

To calculate the ratio, divide Tier 1 Capital by Total Risk-Weighted Assets (RWA). This process ensures that banks with riskier loan portfolios are required to hold more capital than those with conservative holdings like federal bonds.

  1. Identify Common Equity Tier 1 (CET1) items in the quarterly report.
  2. Subtract regulatory adjustments such as goodwill and deferred tax assets.
  3. Verify the total RWA value provided in the Bank's Quarterly Report.
  4. Compare the resulting percentage against the OSFI minimum requirement of 7%.

Protect Your Capital

Understanding capital ratios is only the first step. Learn how to distribute your funds across Canada's most stable institutions.