Payment of advance tax by assessee on his own accord
Section 406(1) of Income Tax Act 2025
(1) Every person, who is liable to pay advance tax under section 404 (whether or not he has been previously assessed by way of regular assessment) shall, on his own accord, pay advance tax on the specified sum, calculated in the manner laid down in section 405, at the appropriate percentage, and on or before the due date of each instalment, as specified in section 408.
Section 406(2) of Income Tax Act 2025
(2) A person who pays any instalment or instalments of advance tax under sub-section (1), may increase or reduce the amount of advance tax to accord with specified sum and the advance tax payable thereon, and make payment of the said tax in the remaining instalment or instalments, accordingly.
Section 406(3) of Income Tax Act 2025
(3) In this section, the expression “specified sum” means current income as estimated by the assessee.