Taxpayers in Romania are required to file an F4105 notification in the fiscalization system for the following situations:

1. Establishment of a new fiscal cash register: When a taxpayer sets up a new fiscal cash register, they need to submit an F4105 notification to inform the fiscal authority about the registration details of the cash register.
2. Replacement or change of fiscal cash register: If a taxpayer replaces or changes their existing fiscal cash register, they must file an F4105 notification to notify the fiscal authority about the new registration details of the cash register.
3. Temporary suspension of fiscal cash register activity: In case of temporary closure or suspension of the fiscal cash register’s activity, taxpayers are required to submit an F4105 notification to inform the fiscal authority about the duration of the suspension.
4. Reactivation of fiscal cash register: After the temporary suspension of the fiscal cash register’s activity, taxpayers need to file an F4105 notification to inform the fiscal authority about the reactivation of the cash register.
5. Permanent closure of fiscal cash register: When a taxpayer permanently ceases the activity of a fiscal cash register, they are obligated to submit an F4105 notification to inform the fiscal authority about the closure.

These notifications help ensure proper documentation and compliance with fiscal regulations in Romania’s fiscalization system.