31 August 2026
Sections 234A, 234B, and 234C do not apply to the additional tax on share buybacks because buyback tax is an event-based levy rather than a standard income tax subject to advance tax estimation or annual return deadlines. Default or delay in depositing buyback tax within the mandatory 14-day window is governed exclusively by its own specific interest provision (Section 115QB) at a rate of 1% per month or part thereof.