The Revenue Administration (GİB) made an important system announcement concerning taxpayers. Due to planned maintenance and development work on the E-Declaration systems, the Withholding and Premium Service Declaration will not be possible to submit electronically for a certain period. According to GİB's statement, the interruption will begin at 00:00 on Saturday, 1 August 2026 and will continue until 23:59 on Monday, 3 August 2026.
No Declaration Submission for 3 Days
During the planned work, the Withholding and Premium Service Declaration will not be submitted via the Digital Tax Office (DBS), the e-Declaration System, or the Internet Tax Office. GİB stated that this temporary interruption is being applied due to technical work being conducted on the e-Declaration systems.
Therefore, it is important for taxpayers planning to submit declarations during this period to take the system outage into account.
Systems to Be Reopened
The Revenue Administration stated that once the maintenance and development work is completed, the systems for the submission of the Withholding and Premium Service Declaration will be promptly made available again.
According to the planned schedule, the interruption is expected to end at 23:59 on Monday, 3 August.