Tax Regime Selection Framework
The Tax Regime Selection Framework is a structured decision process that helps Indian individual taxpayers determine whether the new concessional tax regime under Section 115BAC or the old regime with its deductions and exemptions results in a lower net tax outflow, anchored by the calculation of a breakeven deduction level above or below which one regime dominates.
From Assessment Year 2021-22, Indian taxpayers were given the option to opt for a concessional tax rate structure under the new regime without most deductions, or continue under the old regime with the full set of deductions and exemptions. The new regime was made the default from Assessment Year 2024-25 for individuals and HUFs, requiring those wishing to continue under the old regime to actively opt in by filing Form 10-IEA before the return due date.
The new regime offered lower slab rates but disallowed most common deductions: Section 80C (Rs 1.5 lakh), Section 80D (health insurance), HRA exemption, LTA, Section 80CCD(1B) NPS additional deduction, home loan interest under Section 24(b) for self-occupied property, and most Chapter VI-A deductions. The standard deduction of Rs 50,000 for salaried employees and pensioners was available under both regimes as of FY 2023-24 onward.
The breakeven deduction level was the total amount of deductions and exemptions at which both regimes produced the identical tax liability. At deductions below this level, the new regime (lower rates) was more favourable. Above this level, the old regime (lower taxable base) was more favourable.
For a taxpayer with gross income of Rs 10 lakh, the breakeven calculation showed that if total deductions (80C + 80D + HRA + home loan interest) exceeded approximately Rs 3-3.5 lakh, the old regime yielded lower tax. If total deductions were below this threshold, the new regime was better. At higher income levels, the breakeven amount shifted upward due to the larger benefit of slab rate differences.
Key situations where the old regime was typically advantageous: (1) home loan borrowers claiming both principal (80C) and interest (80CCD(1B)) deductions; (2) HRA recipients with high rent relative to salary; (3) investors maximising 80C, 80CCD(1B), and 80D simultaneously; (4) taxpayers with loss from house property that could be set off against salary.
Key situations where the new regime was typically advantageous: (1) individuals with few deductions, such as young earners without a home loan or insurance commitments; (2) those with income primarily from equity capital gains (which were taxed at flat rates regardless of regime); (3) self-employed persons not eligible for HRA.
The decision was not permanent for non-business income taxpayers — they could switch regime each year. Business income taxpayers (ITR-3 or ITR-4 filers) could opt out of the new regime only once in a lifetime. This asymmetry made regime selection more consequential for those with business or professional income.