My FNO 328.00 is not being processed/posted in the ISNA system for the 3-month period of 2026, what should I do?
The State Revenue Committee's information systems have undergone works regarding the acceptance and processing of tax reporting form 328.00.
Posting and reversing (stornierung) of FNO 328.00 is carried out as normal.
Also, the submission of FNO 328.00 to replace a previously submitted form is operating stably.
If necessary, it is possible to submit FNO 328.00 in replacement of a previously submitted one.
To identify specific technical problems, it is necessary to conduct a targeted check. For this, please provide current screenshots of the error to the SRC or contact the Support Service through the "Support – Feedback" section of the KNP ISNA portal.
The response to your request will be sent to the email address specified in the user profile. In addition, the inquiry can be sent to the email of the KNP ISNA Support Service: [email protected].