Branch² Intelligence

Tax audit due by 21 October: How to pick between Form 3CA and 3CB — and what to do if you filed the wrong one

IN · 2026-09-28

India — direction and magnitude withheld

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Key takeaway

Tax audit deadline for AY 2026-27 extended to 21 October, shifting compliance workload for audit firms.

  1. Step 1 · The triggerThe Income Tax Department extends the tax audit deadline to 21 October, deferring the compliance peak for audit firms and SMEs.
  2. Step 2 · Knock-onAudit firms must classify each client for Form 3CA or 3CB, increasing engagement scoping and documentation workload.
  3. Step 3 · Reaches youSMEs relying on external audit support get more time but face compressed downstream filing windows and higher risk of last-minute compliance errors if form selection is mishandled.

The trigger is reported by the source below. The steps that follow are Branch²’s traced reasoning — how the shock could reach a business like yours, not a prediction.

Source: livemint.com

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