Re: Best credit card to up score?
Assuming you already have pretty good credit, and are not over extended,
I'd go with a major bank card, like Visa or MC, that has no annual fee.
Then charge a balance, but absolutely no more than about 20% of the credit limit. Make payments, on time, for a couple months. That may tick up your score by a few points- not sure how long it'd take, though.
Then once you get your loan, pay off the card and just let it sit empty.
You get points for having credit, but not over utilizing it. I suggested a major bank card because they tend to grant higher credit limits than typical department store cards. It may take a few months for all that to impact your score.
Applying for credit can have a short term negative impact on your FICO score, as the credit card company will pull your credit report, and depending on how much other credit you've applied for recently, it could be looked at as a negative.