The transfer of accounts between banks in Spain takes at least 15 business days from the application date (this includes the period for every account holder to sign). If you wish, you can also request that it be done over a longer period of time.
Keep in mind what type of operation you are going to transfer, because it could affect the transfer times. Our general recommendation is that you select 1 month from the current date.
Some deposits, such as a pension or paycheck, can take up to 2 months to change accounts.