It is a snapshot, not an average
Utilisation is measured when your balance reports, typically at statement close. Someone who spends heavily and pays in full can still report high utilisation simply because of when the snapshot is taken. Timing your payment changes the number more than reducing your spending does.
Both the total and the individual account count
Overall utilisation across all your accounts matters, and so does the figure on each individual account. A single account pushed close to its limit can weigh on you even while your total across everything looks comfortable.
The mid-cycle payment
If your reported figure is higher than you would like, make a payment before the statement closes rather than after. Same money, same month, different reported number. This single habit fixes the problem for most people without changing anything about how they spend.
Utilisation has no memory. Bring it down this month and the improvement shows up almost immediately.
More available credit lowers the ratio
A limit increase or an additional account reduces utilisation without you spending a penny less. That is a legitimate lever — provided the extra headroom does not quietly become extra spending.
What not to do
Do not close unused accounts in a tidying mood; you remove available credit and push the ratio up. And do not leave a balance sitting deliberately — utilisation responds to what is reported, not to whether you paid interest on it.
