Penalty for belated ITR

 ⁸⁰[Penalty for failure to furnish return of income.

271F. If a person who is required to furnish a return of his income, as required under sub-section (1) of section 139 or by the provisos to that sub-section, fails to furnish such return before the end of the relevant assessment year, the Assessing Officer may direct that such person shall pay, by way of penalty, a sum of five thousand rupees.]

INTEREST U/S. 234-A FOR LATE OR NON-FURNISHINGOF INCOME TAX RETURN

For  defaults in furnishing Simple interest @ 1% for every Return of income month or Part thereof from the due date of filing of the Return to the date of furnishing of the return & in case return is not filed, it is upto the date of completion of assessment u/s 144. The interest is calculated on the amount of the tax on the total assessed income as determined under sub-section (1) of section 143 or on regular assessment u/s 143(3) as reduced by the Advance Tax, if any, paid and any tax deducted or collected at source.