Box 505 incorrect: "Box amount does not match the amount we have in our database"

If, when entering the data in box 505 of the 2024 Income Tax return, the system displays the error "Box amount does not match the one we have in our database", review the help information "Information about the box of the previous year's Income Tax return" in the "Income Tax - Technical Help" section.

Box amount

If an error appears regarding the box format, we remind you that in the field for box 505 you must enter the whole number without any sign, separated by a comma (,) from the decimals , for example 14755.45.

If it is not possible to obtain the reference number using box 505 of the 2024 Income Tax Return, The alternatives available to you are:

Access the Income services through Cl@ve . It is an identification system that allows you to carry out procedures online based on agreed-upon keys with a limited validity period and that can be renewed whenever necessary. The system allows users to scan a QR code, which prevents the user from having to enter their identification data on the access screen. If you cannot scan the QR code, you can continue with the authentication by entering your DNI or NIE plus the contrast data or request a PIN that you will receive via SMS on your mobile phone. For more information, see the related help.
Have an electronic certificate or DNI. ## For more information on how to obtain an electronic certificate, see the related help.
Request an appointment at your local tax office so they can provide you with the 2025 Income Tax reference number. It will be available from March 11th. You can access this service until June 30, 2026 (end of the campaign period).