Tax Authority Suspends Coretax for One Hour on Dec 9 2025

The Indonesian Tax Authority (DJP) announced that the Coretax application will be inaccessible on Tuesday, 9 December 2025, from 11:00 to 12:00 Western Indonesian Time (WIB). All Coretax services will be disabled during that hour.

The downtime is scheduled for system capacity maintenance to improve service reliability for taxpayers. This maintenance is part of DJP’s effort to stabilize the new platform that replaced SIDJP at the start of 2025.

Taxpayers should adjust filing activities during the unavailable period and can use Coretax again after 12:00 WIB. The temporary outage does not affect data already stored in the system.