currency in circulation

Think of the CBN as a giant kitchen that bakes bread every morning. Once that bread leaves the bakery and starts moving from hand to hand at the market, at the bus stop, in your uncle's pocket, it stops being flour and yeast sitting on a shelf and becomes something being used. Currency in circulation works the same way. It is the naira notes and coins that have left the Central Bank of Nigeria's vaults and are now out in the real world, being spent, saved under mattresses, folded into wallets, or stuffed into offering baskets.

It does not include the money still locked in the CBN's own vaults, and it does not include the money sitting calmly in your bank account as a digital number, because that figure only becomes currency in circulation the moment you withdraw it as cash at an ATM in Yaba or a bank in Leeds.

Nigerians talk about this a lot without using the technical term. When someone says there is too much cash chasing too few goods, or that money is scarce despite salaries being paid, they are really talking about how much currency is in circulation and where it has gone. During the 2022 naira redesign, this term suddenly became dinner table conversation, because the CBN was trying to pull a huge chunk of old notes back into the banking system to reduce the amount of cash roaming free outside it.

A relative in London sending ₦200,000 home for a nephew's school fees adds nothing to currency in circulation until the receiving family in Nigeria walks into a bank branch and pulls it out as physical cash rather than leaving it in an account or spending by transfer.

Central banks watch this figure closely because too much cash outside the banking system can calmly stoke inflation, fuel the parallel market, and make it harder to track exactly how money is moving through the economy.