File your quarterly Modelo 130 and 303

What you need

• A way to sign in to the AEAT online office: Cl@ve, an electronic certificate or an electronic DNI. AEAT: Ayuda tecnica, presentacion del modelo 303 por formulario web
• Your income and expense records for the quarter. The 130 form can import your books from 2023 on. AEAT: Modelo 130 procedure page
• The IBAN of the account for a direct debit, or a way to pay with an NRC (card, Bizum or your bank). AEAT: Ayuda tecnica, presentacion del modelo 303 por formulario web

Steps

1. 1.

   Check your window: file from the 1st to the 20th of April, July and October. Q4 goes from 1 to 30 January.

   The 130 uses the same quarterly windows in the 2026 AEAT calendar.

   AEAT: Plazo de presentacion del modelo 303

2. 2.

   If you want direct debit, file earlier: the debit window ends before the general deadline (to 15 April, July and October, and in January for Q4).

   AEAT: Plazos con domiciliacion bancaria 2026

3. 3.

   Open Modelo 303 in the AEAT online office and sign in. Use the Pre303 help service to fill it.

   AEAT: Como presentar la declaracion de IVA, modelo 303

4. 4.

   Fill in the economic data, then run Validate to check for warnings and errors.

   Fix errors. Warnings do not stop filing but are worth reading.

   AEAT: Ayuda tecnica, presentacion del modelo 303 por formulario web

5. 5.

   If the result is a payment, choose direct debit with your IBAN, or choose to pay now and get an NRC.

   AEAT: Ayuda tecnica, presentacion del modelo 303 por formulario web

6. 6.

   Press Firmar y enviar, tick Conforme if asked, and finish. Download the receipt PDF.

   AEAT: Ayuda tecnica, presentacion del modelo 303 por formulario web

7. 7.

   Open Modelo 130 for the current year in the AEAT office (Presentación y servicio de ayuda Pre 130) and fill it.

   Use the same sign-in and the same window as the 303.

   AEAT: Gestiones pagos fraccionados, Modelo 130

8. 8.

   Pay or set the direct debit for the 130, then sign, send and keep the receipt.

   You can check or change a debit account in the Domiciliaciones service on the same page.

   AEAT: Gestiones pagos fraccionados, Modelo 130

Common mistakes

• Filing for direct debit after the debit window. The debit window ends before the general deadline. AEAT: Plazos con domiciliacion bancaria 2026

What varies

Field-by-field instructions for each model are in the AEAT instructions pages. A deadline falling on a non-working day moves to the next working day.