For the Assessment Year (AY 2024-25) individual taxpayers have the option to switch from the new tax regime to the old one, even if they have initially informed their employers that they opted for the new regime. The new tax regime would be the default choice for income taxpayers, so an individual has to manually select the old tax regime if he/ she wants to shift. Before selecting this option taxpayers have to calculate their income tax based on the old regime's established slabs.