Advisory Academy

Firm News Articles

News from our office and the accounting profession.

Firm News05 August 2026

Sinem Yavuz, CPA, Appointed as TÜMKİAD Şişli District President

Sinem Yavuz was appointed TÜMKİAD Şişli District President. What the role means for our clients and for local entrepreneurs.

VAT
VAT-2 (Withholding Liability) Return
26 Oct 2026
For taxpayers responsible for withholding VAT; filing and payment are due the same day.
Withholding
Withholding & Premium Service Return
26 Oct 2026
For taxpayers on the 3-month period: July-August-September period.
VAT
VAT Return Filing Deadline
28 Oct 2026
For taxpayers on the 3-month period: July-August-September period.
Social Security
Social Security Premium Payment Deadline
02 Nov 2026
Late payment incurs a delay penalty (3%) and delay interest (Law No. 5510, Art. 89).

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