Tax, GST and business notices guides

Reviewed on: 2026-06-12.

Tax problems in this category come in three families, and the remedy is different for each.

First, your payment landed in the wrong place. A challan paid under the wrong PAN or the wrong assessment year sits as an unclaimed credit while the department raises a demand against you. The fix is challan correction, now available online on incometax.gov.in for assessment year and minor head, and through the jurisdictional Assessing Officer for the rest.

Second, the department's data about you is wrong. The Annual Information Statement and Form 26AS pull entries from banks, registrars and tenants, and a wrong entry there becomes a mismatch notice later. You correct it by submitting feedback on the AIS itself, with evidence, before you file the return.

Third, a compliance notice arrives for your business, from the GST department, customs or a regulator, and the clock starts the day it is issued, not the day you read it.

The Income Tax Department, CBIC and customs are public authorities, so RTI works for the file behind a stuck correction or an unexplained demand. The guides below take one problem each and walk it to the end.

• Tax challan paid under the wrong PAN
• Advance tax paid for the wrong assessment year
• AIS or Form 26AS mismatch on property sale, FD interest or salary
• AIS shows rent received but you are not the landlord
• AD code registration stuck on ICEGATE: exporter checklist

For a different issue, open all practical guides.