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SAF-T

Submit SAF-T files

Understand submission methods and deliver files to tax authorities.

SAF-T submission approaches fall into three main categories:
Portal-based submission (most countries)
Most countries require you to log into their tax authority portal and manually upload your SAF-T files. This is the standard approach for countries such as Poland, Norway, Lithuania, and Romania.
Direct integration (Portugal)
For Portugal, SAF-T offers direct integration capabilities so you can submit files directly from the platform without visiting the tax authority portal separately.

For detailed submission procedures specific to your jurisdiction, refer to the appropriate country guide.

  1. Choose submission method.
    • Portugal: Direct submission through Sovos SAF-T. For Portuguese operations, Sovos SAF-T offers streamlined direct submission that eliminates the need to visit the Portuguese tax authority portal separately.

      1. On the File Generation page, click Submit to AT to transmit directly to the Portuguese tax authority

    • Standard portal submission process: For countries requiring manual portal submission follow this general process.
  2. Prepare for submission (portal method).
    Download your generated SAF-T file from the Sovos platform and save it to a secure location. Verify file requirements:

    • Check file size limits (varies by country)

    • Confirm required file format (XML, PDF with embedded XML, etc)

    • Ensure proper character encoding (typically UTF-8)

    Prepare authentication:

    • Qualified electronic signature (most common requirement)

    • Government-issued digital certificates

    • Two-factor authentication credentials

    • Company authorization documents if required

  3. Access tax authority portal.
    1. Go to your country's official tax submission portal.
    2. Log in using approved authentication methods.
    3. Locate the SAF-T or electronic filing section.
    4. Select the appropriate reporting period and file type.
  4. Upload and submit.
    1. Upload your SAF-T file using the portal's file upload functionality.
    2. Complete any required metadata such as reporting period confirmation.
    3. Review submission details before final confirmation.
    4. Apply digital signature if required by your jurisdiction.
    5. Submit the file and wait for processing confirmation.
  5. Obtain confirmation.
    1. Download the official receipt provided by the tax authority.
    2. Save confirmation documents with unique submission identifiers.
    3. Note any processing reference numbers for future correspondence.
    4. Archive all submission documentation according to your retention policies.
Different countries have varying authentication requirements:
Qualified electronic signature
Most European countries require qualified electronic signatures from authorized providers. Ensure your signature is current and valid.
Government authentication systems
Some countries use proprietary authentication systems (for example., Norway's ID-porten or Poland's Profil Zaufany) that require advance setup.
Company authorization
Certain jurisdictions require specific authorization for individuals submitting on behalf of companies. Verify that submission rights are properly delegated.
Common submission challenges:
File size limitations
Some portals have strict file size limits. If your SAF-T file exceeds limits, you may need to split reporting periods or contact the tax authority for guidance.
System availability
Tax authority portals may experience downtime during peak periods. Plan submissions well before deadlines to accommodate potential delays.
Validation errors
Even successfully generated files may be rejected by tax authority systems due to country-specific validation rules. Monitor for rejection notices and be prepared to make corrections.
Authentication issues
Digital certificate expiration or authentication problems can prevent submission. Maintain current certificates and test authentication before deadline periods.
Best practices for successful submission:

  • Submit well before deadlines to allow time for resolving any issues

  • Test your authentication and portal access in advance

  • Keep detailed records of all submission attempts and confirmations

  • Monitor for authority responses and rejection notices

  • Maintain backup submission methods where available

  • Document any special circumstances that may affect submission timing

Successful SAF-T submission requires careful attention to country-specific requirements and proper preparation of both files and authentication credentials.

SAF-T Public User Current

Last updated: November 11, 2025