Turkey is rolling out a new e-Declaration system for VAT returns, gradually replacing the old platform with open-source software and introducing it in phases across provinces through 2026. Taxpayers in affected regions must submit VAT returns using updated forms via the Digital Tax Office or integrated accounting systems, as the country moves toward a fully modernized nationwide filing framework.
Turkey Expands New e-Declaration System for VAT Returns
Public
Turkey
Author: Ivana Picajkić
Category:
Fiscal subject related
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623
Content accuracy validation date:
28.04.2026
Content accuracy validation time:
08:30h
The Revenue Administration of Turkey is gradually rolling out a new e-Declaration system for submitting VAT returns, replacing the older electronic declaration platform with updated, open-source software.
The system covers the following VAT return types: VAT1 – Standard VAT Return (KDV1), VAT2 – Reverse Charge VAT Return (KDV2), VAT2B – Special Reverse Charge Declaration (KDV2B), VAT4 – Withholding VAT Return (KDV4), Special VAT Return (KDV9015).
The implementation is being introduced in phases across different provinces:
- September 2025: Pilot started (Eskişehir, Kırşehir),
- November 2025: Expanded to Konya, Muğla,
- December 2025: Added Afyonkarahisar, Bursa, Kırıkkale, Yalova,
- March 2026: Extended to multiple additional provinces.
From May 1, 2026, the system applies to taxpayers in: İzmir, Adana, Gaziantep, Mersin.
Applies starting with April 2026 VAT returns.
Taxpayers must submit VAT returns through the Digital Tax Office using the new e-Declaration system. They must use the updated forms:
- 0015-KDV1
- 4017-KDV2
- 4018-KDV2B
- 0016-KDV4
- 9015-KDV9015
Tax professionals (accountants and service providers) can file returns via system integration (web services). This is only possible if their accounting software is integrated with the e-Declaration system.
Turkey is expanding its modernized VAT filing system nationwide, requiring affected taxpayers to switch to the new platform and updated forms as the rollout continues.
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