Cash Advance: You can get cash from an ATM using your credit card. However, you are borrowing money from your credit card company. Transactions of this type are called cash advances. Your credit card company will charge you a finance charge on the cash advance starting the day you withdraw the money. There is no grace period for cash advances. Card companies often charge a cash advance fee. They often charge a higher periodic rate for cash advances than for regular balances. To find the interest, multiply the amount of the advance by the daily periodic interest rate and the number of days of the loan period. To find the new finance charge, add the interest to any fees paid. The cash advance and finance charges are added to find the amount needed to pay off the loan.