1. Leaving your card on file helps to improve your credit utilization ratio and the age of credit on file.
2. Before agreeing to pay off a collection account make sure you ask for a paid deletion. Have the collection agency send a letter in writing.
3. Credit card companies don’t like to report credit limit or they report it lower than it actually is. This causes credit utilization rates to be higher then it actually is. Contact the creditor and ask them to have your credit limited reported on your credit file.
4. Increase your credit limit with the credit cards you already have. Increasing your credit limit can lower your credit utilization.