Advance Tax Interest Calculator
Calculate interest under Section 234B (default in payment) and Section 234C (deferment of instalments).
Note: This is a simplified calculation. Actual interest computation involves specific instalment percentages (15%, 45%, 75%, 100%) and assessment timelines.
Related Deadlines
Advance Tax (Q1) Due Date
Advance Tax Q1 due date is 15th June. Pay 15% of estimated annual tax liability by 15th June to avoid interest under Section 234C for FY 2026-27.
Advance Tax (Q2) Due Date
Advance Tax Q2 due date is 15th September. Pay cumulative 45% of estimated tax by 15th September to avoid Section 234C interest for FY 2026-27.
Advance Tax (Q3) Due Date
Advance Tax Q3 due date is 15th December. Pay cumulative 75% of estimated tax by 15th December to avoid Section 234C interest for FY 2026-27.
Advance Tax (Q4) Due Date
Advance Tax Q4 due date is 15th March. Pay 100% of estimated tax by 15th March to avoid Section 234B interest for FY 2026-27.
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