You cannot use your existing credit cards while you’re on a debt management plan, nor can you open new accounts. McClary also said that if you do manage to open new credit card accounts during your debt management plan, existing creditors who find out may stop participating in your debt management plan and reset your account to its original terms and interest rate.
One of the sneaky-quick ways to increase your score is to add yourself as an authorized user on someone else’s. According to FICO, 35% of your score is based on your history of on-time payments, so when you become an authorized user on a friend or family member’s credit card, car loan, or installment loan, etc. you automatically “assume” the same positive history of payments on your credit report. Viola! Your score will go up as well. You do need to make sure the lender registers your social security number and will start reporting the change, and it can take 30 days to reflect on your own credit report (unless you do a Rapid Rescore—see below). But becoming an authorized user is a fantastic way to benefit from a great payment history that’s not even yours.
It's tempting, isn't it? Getting rid of all of your credit card bills, no more annoying multiple payment to multiple creditors, just one, automatic loan payment every month that comes out of your account automatically and you're back on the road to being debt free, right? Well sure—but it comes with a couple of pretty big caveats that might sour the milk for you. Let's explain, and then you can decide whether it's a good idea in your case.
However, there is a big myth that you have to borrow money and pay interest to get a good score. That is completely false! So long as you use your credit card (it can even be a small $1 charge) and then pay that statement balance in full, your score will benefit. You do not need to pay interest on a credit card to improve your score. Remember: your goal is to have as much positive information as possible, with very little negative information. That means you should be as focused on adding positive information to your credit report as you are at avoiding negative information.