- From 12.01.2026, invoices under the “YATIRIMTESVIK” scenario (“ISTISNA” type) in e-Fatura and “EARSIVFATURA” scenario (“YTBISTISNA” type) in e-Arşiv Fatura must include the “Forgone VAT Amount” as per the relevant technical guide.
- This amount will only appear in the XML, not in invoice line or total calculations, nor on the invoice visual.
- XSLT files must be updated according to the new rule for these scenarios and invoice types.
- The “UBL-TR1.2.1_Paketi” has been updated accordingly.
Source: ebelge.gib.gov.tr
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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