Although «new credit» determines up to 10 % of your score, having a few new credit applications each year won't be enough to make a dent for long. (thesimpledollar.com)
Lots of new credit applications can be a red flag to lenders that you might have run into difficult times and are trying to get some quick cash without having thought about repayment. (penniesanddollars.com)
It also helps to wait several months between new credit applications to keep your score in good shape. (moneysense.ca)