ICAI Announcement
UDIN Directorate
The Institute of Chartered Accountants of India
18th February 2026
Validation of UDINs on the e-Filing Portal Based on Five Parameters Instead of Four
In pursuance of the decision of the Council, the members are hereby informed that the PAN of the assessees will now be a mandatory field for UDIN generation under the 'GST & Tax Audit' category on the UDIN Portal.
Henceforth, UDINs will be validated based on the following five parameters at the e- Filing Portal of CBDT:
1. MRN
2. UDIN;
3. AY/FY;
4. Form No; and
5. PAN of the assessee
The information to be provided at the UDIN portal regarding PAN of the assessee will be mandatory and will not be visible to any third-party verifier.
For clarification, if any in this regard communication may be addressed at udin[at]icai[dot]in
UDIN Directorate
