No, you won’t be charged interest but you may have to pay processing fees. This will vary from bank to bank and depend on your total. 

Processing fees are as follows:

 Banks/Tenure  3 Months  6 Months  9 Months  12 Months
 Dubai First 1% 1% 2% 2%
 Mawarid Finance NA NA NA NA
 Emirates Islamic 2% 2% NA NA
 CBD 1% 2% NA 3%

 Please note that the full amount will be charged on your card on the day of the transaction.