How do I compute for my GCredit interest rate? December 04, 2019 07:00 Updated Facebook Twitter LinkedIn Your GCredit interest is computed as follows: Interest Due = Amount Borrowed x 5% Interest Rate x #of Days Borrowed/30 Days Click here for a sample computation. Related articles Where can I use GCredit? How to increase GCredit Limit? How do I pay my GCredit dues? How can I use GCredit? How many times can I max out my credit line?