How to inform income tax department about death of assessee?

To inform the Income Tax Department about the death of an assessee:

1. Log in to the Income Tax e-filing portal. 2. Navigate to 'e-File' → 'Request for New PAN / Update PAN' (if needed) or submit a communication through 'Contact Us'. 3. Provide PAN, name of the deceased, and date of death. 4. Attach death certificate and relevant documents. 5. Submit the request.

You can also write a formal letter to the Assessing Officer of the ward where the PAN was registered with the death certificate enclosed. Official guidance: https://www.incometaxindia.gov.in