capital adequacy ratio
Capital Adequacy Ratio is the cushion of a bank's own money kept aside, measured against its risky loans, to absorb shocks without collapsing.
In plain English
Think of a bank as a family running a food business on credit. They lend out ingredients to traders who pay back later, but sometimes a trader disappears with the rice and beans. If the family has kept some of their own savings aside, untouched, they can absorb that loss and keep frying akara the next morning. If they have not, one bad debtor and the whole business folds.
Capital Adequacy Ratio, or CAR, is that kept aside savings for a bank, expressed as a percentage of its risky assets, mostly loans. The Central Bank of Nigeria sets a minimum CAR that banks must maintain, and it is usually higher for the biggest banks with international licences, because a wobble there shakes the whole system.
When a bank's CAR is healthy, it means the shareholders have put in enough of their own money that a wave of bad loans will not immediately wipe out depositors' funds. It is not about how much cash sits in the vault. It is about how much of the bank's own capital stands between a crisis and your savings account.
A Nigerian example makes this real. During the 2009 banking crisis, several banks were found to have weak capital positions relative to their loan books, and the CBN had to step in with new capital and new management for some of them. That was CAR failing calmly in the background until it became a loud national headline.
For someone in London sending money home every month, this matters more than it seems. You are trusting that the Nigerian bank receiving your transfer, or the one your mother uses to keep it safe, has enough of its own skin in the game. A strong CAR is one of the calm reasons a bank still stands after a rough year.
If a bank has ₦500,000,000 in qualifying capital and ₦4,000,000,000 in risk weighted assets, its CAR is 12.5%. If the CBN's minimum requirement is 10%, this bank has a comfortable buffer above the line.
Questions people ask
What is a good Capital Adequacy Ratio for a Nigerian bank?
The CBN generally requires a minimum of 10% for national banks and 15% for those with international authorisation, though healthy banks often hold more as a buffer above the minimum.
Can I check a bank's Capital Adequacy Ratio before opening an account?
Yes, banks disclose this in their annual reports and investor presentations, and the CBN also publishes financial soundness indicators for the sector, so a quick search will show you where a bank stands.
Does a low Capital Adequacy Ratio mean my money is unsafe?
Not immediately, but it is a warning sign that the bank has less cushion against bad loans, which is why regulators step in early with recapitalisation demands before things reach depositors.
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