If you've mistakenly filled in the wrong assessment year on your online TDS challan, you generally have 7 days from the deposit date to correct it. This can be done via the e-filing portal or TRACES. If this window has passed, you can still request a correction from your Jurisdictional Assessing Officer (AO), who has the authority to amend it in genuine cases.
08 July 2025
Here's the general information regarding the deadline for correcting the assessment year online:
Through the bank: You can approach the concerned bank branch for correction of the Assessment Year within 7 days from the challan deposit date. This is typically for physical challans.
Through the e-filing portal/TRACES: For online challans you can correct the Assessment Year through the e-filing portal (which links to TRACES functionalities) within 7 days of the challan deposit date.
If the 7-day window to correct through the bank or e-filing portal has expired, you can still make a request for correction to the concerned Jurisdictional Assessing Officer (AO). The AO is authorized under the OLTAS application to make such corrections in bona fide cases. There isn't a strict online deadline for approaching the AO, but it's advisable to do so as soon as possible.