It might feel counterintuitive, but if you have credit card debt, paying it off should come before building savings. The reason is simple maths. The interest rate on most cards, currently averaging around 24% in the UK, is far higher than anything you would earn from a savings account.
For example, if your savings account pays 4.5% interest but your card charges 24%, every pound sitting in savings is effectively costing you 19.5% per year.
The one exception is your emergency fund. StepChange recommends keeping a small buffer of around \u00a31,000 for unexpected costs, so you do not have to rely on credit again when something goes wrong. Once the balance is cleared, you can redirect those payments into proper savings.