Advance Tax Calculator FY 2026-27
Calculate quarterly advance tax installments, due dates, and interest under Section 234B/234C.
Interest under 234B/234C applies if advance tax missed. Budget 2026 emphasizes compliance.
Calculating advance tax...
Advance Tax Due Dates FY 2025-26
| Installment | Due Date | Cumulative % |
|---|---|---|
| 1st | June 15, 2025 | 15% |
| 2nd | September 15, 2025 | 45% |
| 3rd | December 15, 2025 | 75% |
| 4th | March 15, 2026 | 100% |
Section 234B Interest
1% per month interest if advance tax paid is less than 90% of assessed tax. Charged from April till date of payment.
Section 234C Interest
1% per month interest for deferment of advance tax installments. Charged for 3 months for each missed installment.
Statutory basis
This calculator applies the provisions below, read from the enacted text. The rate and threshold that apply depend on the date of the transaction, which the calculator resolves rather than assuming a single year.
- ss.403, 404 and 408, Income-tax Act 2025 — liability, the Rs 10,000 threshold and the instalment schedule, from 1 April 2026 source
- s.403(3) — excludes a resident individual aged 60 or more with no business or profession income source
- s.424, Income-tax Act 2025 — interest for default, 1% per month or part from 1 April following the tax year source
- s.425, Income-tax Act 2025 — interest for deferment: 3% on the first three instalments, 1% on the fourth source
- ss.208, 211, 234B and 234C, Income-tax Act 1961 — govern tax years before 2026-27 source
Last verified against the enacted text on .
- Content owner
- DailyWorks Technologies
- Implementation
- DailyWorks Technologies engineering
- Professional review
- Not independently reviewed. Figures are for information and are not a substitute for advice from a qualified tax professional.