Answer

1. F

   Facts

   Yes, if tax for the year after TDS is ₹10,000 or more. Instalments are due by 15 June, 15 September, 15 December and 15 March; shortfalls attract interest under Sec 234B and 234C (now Sec 424 and 425).

2. P

   Provisions and law

   • Sec 211, Income-tax Act 1961 (now Sec 408, Income-tax Act 2025)Advance tax instalments: 15% by 15 June, 45% by 15 September, 75% by 15 December, 100% by 15 March; presumptive filers pay all by 15 March
   • Sec 234B, Income-tax Act 1961 (now Sec 424, Income-tax Act 2025)Interest at 1% a month if advance tax paid is below 90% of assessed tax
   • Sec 234C, Income-tax Act 1961 (now Sec 425, Income-tax Act 2025)Interest at 1% a month for short or late advance tax instalments
3. A

   Analysis

   Traders often earn unevenly, so pay when profits arise. Example: a big F&O profit in January 2026 with tax of ₹60,000; paying it by 15 March 2026 limits Sec 234C interest, and avoids Sec 234B interest. For tax year 2026-27 the same schedule applies under Sec 408 of the Income-tax Act 2025.

4. C

   Conclusion

   1. 1Estimate yearly income each quarter
   2. 2Pay the cumulative instalment by each date
   3. 3Pay extra in the quarter big profits come
   4. 4Enter challans in the return

General guidance from TaxSavvy’s library of money processes. Laws change; your Savvy confirms the answer on your exact case before anything is filed.