Turkey’s Revenue Administration has opened the 2025 income tax return period, running from 1 to 31 March 2026. Taxpayers can file electronically or via the Digital Tax Office, with the first instalment due by 31 March and the second by 31 July.
Turkey’s Revenue Administration has announced the start of the annual income tax declaration period for individuals for the 2025 calendar year.
Taxpayers can submit returns from 1 March to 31 March 2026.
Individuals whose income is derived from commercial, agricultural, or professional activities must file their returns electronically. Those whose income comes solely from salary, rental income, investment income, or other earnings can use the pre-prepared Digital Tax Office (Ready Declaration System) for a simpler submission process. The system is accessible 24/7 via the official website (gib.gov.tr).
For income earned in 2025, the first instalment of income tax, along with stamp duty, is due by 31 March 2026. The second instalment must be paid by 31 July 2026.
The Revenue Administration provides detailed guidance and support through its website, the Tax Communication Centre (VİMER) at 189, the Digital Tax Assistant (GİBİ), verified social media channels, and the Taxpayer E-Mail Communication System (MEİS).
