Form 303 - Technical assistance

Electronic filing of Form 303 for financial years 2018 to 2020, recovering data from previously filed returns

Access requires identification with digital signature (certificate or DNI electronic) and, in the case of individuals, also Cl@ve PIN.

Enter the details of the return you are going to file and click "Search".

This will display the tax returns you have previously filed that can be used to retrieve data.Tick the appropriate box and click on "Retrieve return”.

Note: if no results come up, it is because there is no return that can be retrieved with the data you entered.

The completed form will then be displayed with the data from the previous declaration, except for those relating to the type of declaration:payment, direct debit, acknowledgement of debt, etc.

Bear in mind that the data copied from previous returns do not necessarily have to coincide with those of the period to be filed or with those of settlements made by the Administration.Modify the necessary data and then fill in the rest of the settlement data before submitting.

Once you have checked the result, select the type of return and hit "Sign and Send".A window with the information of the encrypted return and details of the presenter and the declarer will appear.Marca la casilla "Conforme" y pulsa "Firmar y Enviar" para finalizar la presentación.

If everything is correct, a response sheet will be displayed with the confirmation of the shipment.The first page of the embedded PDF provides information regarding the submission (record entry number, Secure Verification Code, receipt number, date and time of submission and the details of the person who submitted the tax return). The following pages contain a full copy of the tax return.