vinujaglan.com · Founder's official site How to read section numbers: s.80C→s.123 means Section 80C of the Income-tax Act, 1961 is now Section 123 of the Income-tax Act, 2025 (in force from 1 April 2026). Returns for FY 2025-26 still use the old numbers; Tax Year 2026-27 onwards uses the new ones. Section Finder
Instalments and due dates
| Due date | Cumulative amount | Safe-harbour |
|---|---|---|
| 15 June | 15% | 12% avoids interest |
| 15 September | 45% | 36% avoids interest |
| 15 December | 75% | — |
| 15 March | 100% | — |
Interest for shortfall
- 234B → 424: if advance tax paid is less than 90% of the assessed tax, simple interest of 1% per month on the shortfall, from 1 April after the year until the tax is paid.
- 234C → 425: for each instalment short, 1% per month for 3 months (1 month for the March instalment) on the shortfall.
- 234A → 423: if the return is filed late, 1% per month on unpaid tax from the due date.
How to pay
- Use the e-Pay Tax service on the income-tax portal; choose the Act (1961 for FY 2025-26, 2025 for Tax Year 2026-27) and the minor head for advance tax.
- Keep the challan identification number for your return.
- Capital gains, lottery or dividend arriving mid-year: pay in the remaining instalments — no interest for the earlier ones.
Frequently asked questions
Usually not, because your employer deducts TDS. But if you have interest, rent, capital gains or freelance income on top, the extra tax may cross ₹10,000 and need advance payment.
Pay as soon as possible. 234C interest for that instalment is a flat 1% per month for three months on the shortfall, so paying late in December or in March costs the same for that instalment.
A resident aged 60 or more with no business or professional income is exempt.
