- The Turkish Revenue Administration (GİB) will implement major technical and regulatory updates to the e-Invoice (e-Fatura) system effective April 1, 2026.
- Automated validation checks will cross-reference invoice data with taxpayer registration and activity codes to ensure VAT rates match registered business activities.
- A new code, “555 – Sales Not Subject to VAT Rate Control,” is introduced for cases like reflection invoices and fixed asset sales where strict VAT alignment is not possible.
- Technical updates include changes to the e-Invoice Package, UBL-TR Code Lists Guide, and UBL-TR 1.2.1 package.
- The changes primarily impact private integrators, businesses using direct system integration, and accounting/ERP systems, with strict requirements for secure HTTPS communication and defined server configurations.
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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