Turkey's Revenue Administration has issued a notice on the start of the annual income tax return period for individuals for the 2025 calendar year, which runs from 1 March to 31 March 2026. Regarding income tax payment for 2025, the notice includes that the first installment is due by 31 March 2026, together with stamp duty, and the second installment is due by 31 July 2026. The notice also in…