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Turkey Updates e-Invoice System with New Exception Code 344 Effective October 2025

  • Turkey Revenue Administration published an update to the e-Invoice package introducing new exception code and updated technical documentation
  • Code 344 has been added under Exception Invoice Type to identify specific exempt transactions and allow taxpayers to correctly tag and report these invoices
  • The official UBL-TR Code Lists Guide has been revised to include Code 344 and align with the updated e-Invoice schema ensuring compliance with latest legal and technical requirements
  • The update affects both production and test environments requiring integrators to verify their systems can transmit invoices using the new code and update validation rules accordingly
  • The new package and code list updates take effect on 1 October 2025 with businesses needing to deploy changes in advance to avoid invoice rejections

Source: fiscal-requirements.com

Note that this post was (partially) written with the help of AI. It is always useful to review the original source material, and where needed to obtain (local) advice from a specialist.



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