How to Authenticate an Income Tax Notice

Originally shared on 2026-10-13. This post relates to the periods and dates stated below.

Received an income-tax notice by email or post? Verify its authenticity before sharing documents or making a payment.

Individuals and businesses can use “Authenticate Notice / Order issued by ITD” under Quick Links on the Income Tax e-Filing portal. This service is available without logging in.

Choose the Document Identification Number (DIN) and mobile-number option, enter the details and complete OTP verification. Alternatively, use the PAN-based option with the document type, relevant year and date of issue.

If the portal shows no matching record, recheck the details and seek clarification through official channels. Do not assume that an unsuccessful search cancels any response obligation.

Once verified, review the notice carefully and record its response deadline.

Contact Kotla & Associates, Bengaluru, for assistance authenticating tax communications and preparing an appropriate response.