Taxpayers / individuals who have annual income tax return obligations due from their wage incomes or other non-wage incomes / personal investments in 2021 (including R&D and technology development zone employees) can submit their annual income tax returns by using the Pre-filled Tax Return System of the Revenue Administration.
Since the wages of the liaison office employees are exempt from income tax, these amounts would not be taken into account during annual income tax return calculations.
The employees can reach Pre-filled Tax Return System via their personal e-Government account passwords. You can also check the detailed info of the Revenue Administration Pre-Filled Tax Return System on the below link:
Pre-Filled Tax Return System (In Turkish)