Demand rise before due date returns file but verify after due date.

Hey Vipul! Here’s what’s happening with your situation:

Why can a demand under Section 143(1)(a) arise before return filing due date, but get noticed/verified after the due date?

1. Section 143(1)(a) demand is basically a summary assessment done by the Income Tax Department based on the return filed.

2. Even if you file the return before the due date, the processing/verification by the department might happen later — often after the due date.

3. The demand notice can be generated only after the return is processed and verified by the system or officer.

4. So, demand can appear (raise) only after the return is processed, even if you filed the return timely.

How is this possible?

• The return filing date and demand generation date are independent.

• The department processes the return later, and if mismatch or short payment is found, they raise demand.

• The demand date can be after the return due date, even if the return was filed before due date.

Summary:

• Return filed before due date → good, timely filing.

• Demand raised after due date → normal, as processing happens after filing.

• Demand under 143(1)(a) is based on return verification, which is post filing.