Advance Tax: Calculation Guide, Due Dates & Penalties for FY 2024-25
Advance tax applies to all taxpayers whose estimated tax liability exceeds ₹10,000. This guide covers who must pay, how to calculate it, all due dates for FY 2024-25, and how to avoid interest under Sections 234B and 234C.
What Is Advance Tax and Who Must Pay?
Advance tax is tax paid in installments during the financial year itself, rather than as a lump sum at the end. Every taxpayer whose estimated tax liability for the year (after TDS) is ₹10,000 or more must pay advance tax. The threshold is ₹10,000 — not ₹10,000 of income, but ₹10,000 of tax liability after deducting TDS.
Exemption: Senior citizens (60 years and above) who do not have income from business or profession are exempt from advance tax. They pay tax only at the self-assessment stage (before July 31 for regular filing, or before the extended due date).
Advance Tax Due Dates for FY 2024-25
| Installment | Due Date | % of Total Advance Tax |
|---|---|---|
| 1st | June 15, 2024 | At least 15% |
| 2nd | September 15, 2024 | At least 45% (cumulative) |
| 3rd | December 15, 2024 | At least 75% (cumulative) |
| 4th | March 15, 2025 | 100% (balance) |
Presumptive taxation (Section 44AD/44ADA): For taxpayers opting for presumptive tax, the entire advance tax is due in one installment by March 15. No quarterly installments required.
Step-by-Step Advance Tax Calculation
- Estimate total income for the year: Aggregate all heads — salary, business/profession, capital gains, house property income, other income.
- Compute estimated gross total income.
- Deduct Chapter VI-A deductions: 80C, 80D, 80TTA, etc. (for old regime clients). New regime clients get standard deduction only.
- Apply the applicable tax rates to arrive at gross tax liability.
- Add surcharge (if income exceeds ₹50 lakh).
- Add Health & Education Cess @ 4%.
- Deduct TDS already deducted or likely to be deducted during the year (salary TDS, bank interest TDS, etc.).
- If the net tax payable > ₹10,000: Advance tax must be paid in the installments above.
Interest for Non-Payment / Short Payment
Section 234B — Shortfall in Advance Tax
If the total advance tax paid is less than 90% of the assessed tax, interest under Section 234B applies at 1% per month (simple interest) from April 1 of the assessment year to the date of self-assessment payment. This interest must be paid before filing the ITR — it appears in the self-assessment calculation.
Section 234C — Deferment of Installments
If any installment is short (not meeting the minimum cumulative percentage by the due date), Section 234C interest applies at 1% per month for 3 months on the shortfall amount. For the March 15 installment, interest is charged for 1 month only.
Exception: Capital gains and certain other income that arises after the last due date can be paid with the immediate next installment or as self-assessment tax — no 234C interest applies if it was not estimable earlier.
Practical Tips for Advance Tax Advisory
- For salary clients with large bonuses or increments mid-year: re-estimate the June installment based on revised projections, then re-check in September
- For business clients: use provisional P&L figures at each installment date — paying something (even if estimated) is better than default
- For clients with capital gains: calculate advance tax on gains as soon as a transaction is completed — don't wait until March
- For new business clients: in their first year, they often underestimate income. Caution them to set aside 25-30% of net income as a tax reserve
- Grovia's compliance calendar auto-generates advance tax reminders for all clients 7 days before each due date
