AutoFirma install help for Spanish public procedures

Use these guides when you need a plain-English starting point before choosing the city page, official portal, calculator, or Ask Guiri workflow that matches your situation.

Check the source before you act

Use this page to prepare the file for autofirma install help, then confirm current forms, appointment categories, fees, and account instructions on the official source listed here.

• Save receipts, confirmations, registry numbers, and downloaded PDFs.
• Use Ask Guiri when the next step depends on your own document, address, status, deadline, or portal error.

Confirm that the procedure actually asks for AutoFirma

AutoFirma is desktop software that some Spanish public procedures use for local electronic signing. It is not a login method and does not decide which credential a service accepts. Open the exact procedure first to confirm its accepted identity method and whether it specifically requests a local signature.

• Use Cl@ve, an FNMT certificate, DNIe, or another method only if the procedure accepts it.
• Install AutoFirma only when the official instructions explicitly ask for local signing.
• Keep the exact procedure URL and wording if the signing screen is unclear.

Install the official version before a deadline

Download AutoFirma from the official government page for your operating system. Install it before the day you need to submit, then use the official procedure's own instructions to confirm that the browser can hand the signing step to the app.

• Download AutoFirma only from the official government signing portal.
• Use a trusted personal computer and keep your operating system and browser current.
• If the browser does not open the app, check the procedure's browser guidance before retrying.

If no credential appears, check the signing setup

A missing credential can have several causes. Where a procedure uses a certificate, it must be valid and available to AutoFirma through your operating system, browser, or a supported external device. Check the service's accepted credential before changing anything.

• Check that a certificate is valid and not revoked if the procedure calls for one.
• Use the official certificate or device guidance for the browser and operating system you use.
• Keep a secure backup before changing browsers or computers.

Save the submission confirmation — not just the signed file

A file can be signed without being submitted. When the task is a filing, wait for the portal's actual confirmation and save the justificante, registry number, CSV code, or receipt it provides. This is the evidence that matters if a submission is later questioned.

• Download the portal's filing confirmation before closing the tab.
• Keep the original file, any signed version, and the confirmation together.
• Record the exact error, date, and official URL if the portal fails.