Summary
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Turkey’s Revenue Administration (Gelir İdaresi Başkanlığı, GİB) has announced on its official e-Belge portal that the e-Fatura Package, the e-Arşiv Fatura Package and the UBL-TR (Code Lists) Guide have all been updated. Taxpayers and integrators are directed to the portal to download the current versions of each package and guide, ensuring their systems align with the latest technical schema and validation requirements for structured electronic invoicing. [ebelge.gib.gov.tr], [edicomgroup.com]
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The updates take effect on 14 September 2026 (“Güncellemeler 14.09.2026 tarihi itibari ile devreye alınacaktır”), giving software vendors, özel entegratörler (special integrators) and in-house teams a lead time to test and deploy the revised UBL-TR 2.1 XML schemas, XSD and Schematron rules. Turkey’s e-invoicing system uses the UBL-TR format signed with a mali mühür (financial seal), so code-list changes directly affect invoice generation and clearance. [kontroljet.com], [celikelcpa.com]
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The change lands amid a broader 2026 expansion: from 1 January 2026 the e-Fatura turnover threshold dropped to TRY 3 million (effectively zero for marketplace sellers), pulling thousands more taxpayers into mandatory scope. Businesses trading on Turkish platforms should update their integrations before the 14 September go-live to avoid rejected invoices, since schema-noncompliant documents are not accepted by GİB and can block payouts. [zunapro.com], [dddinvoices.com]
Sources
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