So here is the summary of this section. How to maximize your credit score number one, pay your bills on time. 130 day late could hurt you by 125 to 130 points. It could take you from Prime financing to not being able to get a loan anywhere. Number two, lower your ratios. This applies to credit cards.
You want your debt ratios at the time of credit scoring to be under 15%. For maximum scoring, at minimum, get your ratio under 50%. If you can't floor your ratios, call the credit card company to see if they will extend your upper limits. Pay your credit card bill in full on the 21st to the 25th day of the cycle. Do not pay a debt collection until they have proven they own the debt and then negotiate