One of my colleague opted for new tax regime for Assessment year 21-22 and paid tax accordingly. He forgot to file his ITR before due date. While filing his ITR after due date he selected the option of belated due date the option to select the new tax regime was not accepted by the system so he filed his ITR with late fee under old tax regime but did not pay the tax as shown under the old regime. He was thinking to file a revised return under new tax regime. Meanwhile income tax department has issued a demand notice u/s 156 to pay the tax. When I consulted my CA he said that he has to file his ITR under old tax regime only after due date and option of new tax regime is not available. My question is penalty is for filing after due date and not under old or new tax regime.
The budget of 2020 introduced a new tax regime for Individuals and HUFs offering lower tax rate slabs for those who are willing to forgo various deductions and exemptions available. A taxpayer with business income and having opted for new tax regime can come back to old tax regime only once and thereafter he is not eligible for the new tax regime in future. However, a person with non-business income can exercise the choice every year.