What is an Income Tax Calculator?
Dual-regime optimization, Section 87A rebate, and take-home pay analysisAn income tax calculator is an interactive financial simulation suite that computes an individual's tax liability under the statutory guidelines of the Central Board of Direct Taxes (CBDT). It provides an instantaneous, side-by-side comparison between the New Tax Regime (Section 115BAC) and the Old Tax Regime, accounting for standard deductions, corporate NPS under Section 80CCD(2), Section 24(b) home loan interest, and Chapter VI-A deductions.
Rather than guessing whether to collect and submit investment receipts, this engine solves for the exact break-even deduction threshold required for the Old Tax Regime to save you money over the default New Regime.
The Break-Even Deduction Benchmark
Minimum deductions required to make the Old Tax Regime cheaper| Gross Salary Bracket | Break-Even Deductions | Typical Advantage | Strategic Action |
|---|---|---|---|
| Up to ₹12.75 Lakh | ₹0 Needed | New Regime | Zero tax under Section 87A rebate and ₹75,000 standard deduction. |
| ₹15.00 Lakh | ~₹5.44 Lakh | Battleground | Requires maximum 80C (₹1.5L), 80D (₹50k), and substantial HRA or home loan interest. |
| ₹20.00 Lakh | ~₹7.08 Lakh | New Regime | Difficult to reach unless claiming very high rent exemption or commercial let-out losses. |
| ₹25.00 Lakh+ | ~₹8.00 Lakh (Cap) | New Regime | Concessional slabs make it mathematically difficult for the Old Regime to compete. |
What Deductions Are Allowed in the New Tax Regime?
Key statutory exemptions preserved under concessional slabsAutomatically applied to salaried employees and pensioners. (Under the Old Regime, it is capped at ₹50,000).
Deductible outside the Section 80C limit for both private and government employees.
Family pensioners can claim 33.33% of pension or ₹25,000 (whichever is lower), raised from ₹15,000 in Old Regime.
Regime Switching Rules & Filing Deadlines
Statutory conditions under Form 10-IEA and Section 139(1)Salaried Taxpayers (ITR-1 / ITR-2)
Full annual flexibility. You can select one regime for employer TDS declarations and switch when filing ITR based on actual proofs.
Business / Professionals (ITR-3 / ITR-4)
Can opt out to the Old Regime only once in a lifetime via Form 10-IEA. Switching back to the New Regime locks you in permanently.
Frequently Asked Questions
Guidelines on standard deduction, rebates, and HRA1. What is the zero-tax income limit under the New Tax Regime?
For FY 2026-27 & FY 2025-26, salaried individuals pay ₹0 tax on gross salary up to ₹12.75 Lakh (₹12L taxable threshold under Section 87A rebate plus ₹75,000 standard deduction). For non-salaried individuals, it is ₹12 Lakh.
2. How does Section 87A Marginal Relief work?
Marginal relief prevents unfair tax jumps when your income slightly exceeds ₹12 Lakh. The total tax payable cannot exceed the incremental income earned above the rebate threshold.
3. Is Section 80CCD(2) employer NPS allowed under the New Regime?
Yes. Section 80CCD(2) employer NPS contributions are allowed under both New and Old Regimes outside Section 80C. Private sector employees can claim up to 14% of Basic + DA in the New Regime (10% in Old Regime), while government employees can claim 14% under both regimes.
4. Can self-occupied home loan interest be claimed under the New Regime?
No. Deduction for interest paid on housing loan for a self-occupied property under Section 24(b) (up to ₹2 Lakh) is disallowed under Section 115BAC.
5. How is HRA exemption calculated under Section 10(13A)?
HRA exemption is the minimum of: 1) Actual HRA received, 2) Rent paid minus 10% of Basic Salary, or 3) 50% of Basic for metros (40% for non-metros). HRA is deductible only in the Old Regime.