If you have a poor credit score, you likely won’t be eligible for a favorable balance transfer card. Your credit score and previous credit history will determine whether you’re eligible for promotions such as 0% APR. If you’re not, then the balance transfer likely won’t be in your best interest. Besides, if you already have a poor credit score, applying for a balance transfer credit card could lower it even further. Opening new accounts, closing old ones, increasing your credit utilization ratio, and more will reduce your credit score, so you need to be careful.