Although many Americans say they're planning to use the $600 stimulus payments to pay for immediate needs and household bills, those who can afford to pay down their credit card balances may see a bump on their credit score. 

For some, that bump may be significant. Credit Sesame ran simulations using data from over 1 million members and found that of those with poor credit scores between 300 and 500, 70% could see a 19-point increase in their score within a month if they use the $600 stimulus payment to pay down their credit card debt.