Yes, you can usually make overpayments, but it depends on the bank and your mortgage agreement. Overpayments mean you pay the monthly payment more than required. Simply put, you can either pay as a lump sum or in small regular amounts. This generally helps you reduce the overall loan amount faster and pay less interest in the long run.
Note: Each bank has its own policy, allowing overpayments, while others may have restrictions. Most UAE banks let you overpay up to 30% of your outstanding loan balance without penalty.