Why This Is Timely:
March 15 was the last date for paying advance tax, but many taxpayers (especially freelancers, investors, and high earners) miss it. The good news? You can still pay Self-Assessment Tax before filing your ITR — and avoid bigger penalties.
1. What Is Self-Assessment Tax?
- It’s the final tax payment you make before filing your return, to cover any shortfall in TDS or advance tax
- Needed if your total tax liability > TDS + advance tax already paid
2. How to Calculate It?
- Total income tax (based on regime)
- Minus: TDS already deducted (check Form 26AS)
- Minus: Advance tax already paid (if any)
- = Balance amount = Self-assessment tax
Also add interest under Sections 234B & 234C, if advance tax was missed
3. How to Pay It Online (Step-by-Step):
- Go to https://incometax.gov.in
- Click on e-Pay Tax
- Choose “Other Receipts – 300” → “Self-Assessment Tax” (Minor Head 400)
- Enter PAN, assessment year (2025–26), and payment details
- Pay via net banking, UPI, debit card, etc.
- Save challan receipt to upload during ITR filing
4. What Happens If You Don’t Pay?
- Return will show “tax payable” → Not processed
- Refunds (if any) will be blocked
- You’ll be liable for additional interest + notice under 139(9) (defective return)
5. Where to Show It in ITR?
- While filing, go to “Tax Paid and Verification” section
- Enter Challan Number, Date, Amount
- ITR will auto-adjust your final tax position
Social Caption:
Missed advance tax? Don’t worry — just pay self-assessment tax before filing your ITR. Here’s the step-by-step guide to do it right.
Want the next one on “How Interest Under Sections 234A, 234B & 234C Is Calculated” or “Can I Still File ITR if I Miss Paying Self-Assessment Tax?”

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