You can ask for a higher credit limit, but usually, you must wait at least six months after account opening. You need to demonstrate during that time that you are creditworthy by paying your bills on time and keeping your balance low. You should aim for a credit utilization ratio (total credit used divided by total credit authorized) below 30%, and you should not apply for more cards during the waiting period. Many cards aimed at consumers with bad credit will automatically review your account and possibly offer you a credit limit increase. In addition, issuers of secured cards may decide to refund your security deposit after a suitable period, converting your card to unsecured. A higher spending limit increases the convenience of your card. For example, you may want to pay for a fancy vacation or even a wedding using your credit card. It’s easier to do so on a single card than to split the expense over several, each one requiring its own minimum monthly payment. The flip side of a high credit limit is that you have the potential to fall into deeper debt. If you have trouble controlling your use of credit, you can request a low credit limit (or simply cut up your credit cards and live the debit lifestyle).