Anyone can have bad credit and most people will miss or be late on a payment or two in their lives. It's easy to do, especially if you don't have automated payments such as direct debits or standing orders set up. If you've struggled financially at any point with your incomings and outgoings then you are likely to have bad credit to some degree. If you have any CCJs against you or have been bankrupt, you will also have a bad credit score. The good news is that you can improve your score over time.