Self-Assessment Tax

Self-assessment tax is the balance tax you pay yourself before submitting your return, after accounting for the TDS, TCS and advance tax already paid — often together with any 234A/B/C interest.

What it is

Once you total your tax for the year and subtract everything already credited — TDS, TCS and advance tax — any amount still outstanding is self-assessment tax. You pay it yourself through a challan on the portal, frequently including any interest due under sections 234A, 234B or 234C. It is the final settling-up step that brings your remaining liability to zero.

Why it matters

A return cannot be completed cleanly while tax is still owed, so self-assessment tax must be cleared first. After you pay the challan, the amount is credited and reflects in your Form 26AS, which is where you confirm the payment went through before you finish. Only once your liability is fully covered do you proceed to generate your ITR-V.

Example Illustrative

Suppose your total tax for the year is ₹90,000. TDS covers ₹70,000 and advance tax ₹12,000, leaving ₹8,000 still due. You pay that ₹8,000 (plus any small 234B/234C interest) as self-assessment tax via challan, and once it appears in Form 26AS your liability is settled. Figures are illustrative only.