Last date for payment of income tax for ay 2021-22

For Assessment Year (AY) 2021-22, there was no single "last date" for tax payment, as it depended on whether you were required to pay Advance Tax or Self-Assessment Tax.

1. Advance Tax

For the Financial Year (FY) 2020-21 (which corresponds to AY 2021-22), Advance Tax was to be paid in four installments:

• 15% of tax liability by June 15, 2020

• 45% of tax liability by September 15, 2020

• 75% of tax liability by December 15, 2020

• 100% of tax liability by March 15, 2021

2. Self-Assessment Tax

If you had any remaining tax liability after adjusting for Advance Tax and TDS, it is treated as Self-Assessment Tax. This should ideally be paid on or before the date of filing your Income Tax Return (ITR) to avoid interest under Section 234A.

Important Note on Interest (Section 234A)

While the CBDT extended the due dates for filing ITRs for AY 2021-22 multiple times (ultimately up to March 2022 for certain categories), these extensions did not waive the interest liability under Section 234A for taxpayers whose net tax liability (after deducting TDS and Advance Tax) exceeded ₹1,00,000. For such individuals, interest began accruing from the expiry of the original statutory due dates.

Summary: Advance Tax for AY 2021-22 was due in quarterly installments ending March 15, 2021. Any remaining Self-Assessment Tax should have been paid by the original due date of your ITR to avoid interest penalties, regardless of subsequent extensions to the filing deadlines.