Let’s take a look at Section 23F which specifies the penalty to be imposed for default in filing IT return.
23F: Fees for default in furnishing return of income:
(1) Without prejudice to the provisions of this Act, where a person required to furnish a return of income under Section 139, fails to do so within the time prescribed in sub-section (1) of said section, he shall pay, by way of fee, a sum of,—
(a) five thousand rupees, if the return is furnished on or before 31st day of December of the assessment year;
(b) ten thousand rupees in any other case:
Provided that if the total income of the person does not exceed five lakh rupees, the fee payable under this section shall not exceed one thousand rupees.
(2) The provisions of this section shall apply in respect of income required to be furnishedfor the assessment year commencing on or after the 1st day of April 2018.
Now, as per the Section 23F, the penal provisions would be applicable with effect from April 1, 2018. Hence, taxpayers who have not filed their IT return for FY2016-17 need not worry. They can file their returnon or before the end of the assessment year, i.e. by March 31, 2018.
Also, if the total income of the taxpayer does not exceed Rs 5 lakh for FY2017-18 and onwards, the maximum penalty would be Rs 1,000.However, although the penalty is not applicable for FY2016-17, the IT department imposes penal interest at the rate of 1% per month on the amount of income tax due from the taxpayer.