New Tax Regime vs. Old Tax Regime: Budget 2024 Comprehensive Guide
Under the Indian Income Tax Act, individual taxpayers can choose between two distinct tax frameworks for filing their annual Income Tax Returns (ITR): the New Tax Regime (Section 115BAC) and the traditional Old Tax Regime.
With Union Budget 2024 updates, the New Tax Regime has been established as the default tax regime for all individual taxpayers. It features lower tax slab rates and an enhanced Standard Deduction of ₹75,000 (up from ₹50,000), but eliminates popular deductions such as Section 80C, 80D, HRA exemption under 10(13A), and Home Loan Interest under Section 24(b).
Slab Rates Comparison (FY 2025-26 / AY 2026-27)
| Income Slab Range (New Regime) | New Tax Rate (115BAC) | Income Slab Range (Old Regime) | Old Tax Rate |
|---|---|---|---|
| Up to ₹3,00,000 | NIL (0%) | Up to ₹2,50,000 | NIL (0%) |
| ₹3,00,001 – ₹7,00,000 | 5% | ₹2,50,001 – ₹5,00,000 | 5% |
| ₹7,00,001 – ₹10,00,000 | 10% | ₹5,00,001 – ₹10,00,000 | 20% |
| ₹10,00,001 – ₹12,00,000 | 15% | Above ₹10,00,000 | 30% |
| ₹12,00,001 – ₹15,00,000 | 20% | — | — |
| Above ₹15,00,000 | 30% | — | — |
How Breakeven Deductions Work
To determine whether the Old Tax Regime will save you more money than the New Tax Regime, you must calculate your Breakeven Deduction Threshold. This is the minimum total sum of eligible deductions (Section 80C + Section 80D + HRA + Home Loan Interest + NPS) required to make tax outflow under the Old Regime lower than under the New Regime.
Rule of Thumb: For gross salaries between ₹12 Lakhs and ₹15 Lakhs, if your total deductions (80C ₹1.5L + HRA ₹1.2L + 80D ₹25k + Home Loan ₹2L) exceed ~₹3.75 Lakhs to ₹4.25 Lakhs, the Old Tax Regime is generally more beneficial. If your total deductions are low, the New Tax Regime yields higher take-home pay.
Worked Numerical Example: Gross Salary ₹15,00,000
Consider a salaried employee earning a gross annual income of ₹15,00,000 with ₹3,75,000 total eligible deductions:
| Calculation Component | Old Tax Regime | New Tax Regime (Budget 2024) |
|---|---|---|
| Gross Salary | ₹15,00,000 | ₹15,00,000 |
| Standard Deduction | ₹50,000 | ₹75,000 |
| 80C + 80D + HRA + Home Loan | ₹3,75,000 | ₹0 (Not Allowed) |
| Net Taxable Income | ₹10,75,000 | ₹14,25,000 |
| Total Tax Payable (incl. 4% Cess) | ₹1,40,400 | ₹1,45,600 |
In this scenario, because the taxpayer claimed ₹3.75 Lakhs in deductions, the Old Tax Regime saves ₹5,200 annually compared to the New Regime.
Section 87A Tax Rebate & Marginal Relief Explained
Under Section 87A of the Income Tax Act:
- New Regime Zero-Tax Threshold: If taxable income does not exceed ₹7,00,000, a full tax rebate up to ₹25,000 is granted, reducing your income tax liability to zero! (With the ₹75,000 Standard Deduction, gross salary up to ₹7,75,000 is completely tax-free).
- Marginal Relief: If taxable income slightly exceeds ₹7,00,000 (e.g. ₹7,05,000), tax payable is capped at the income amount exceeding ₹7 Lakhs (i.e. ₹5,000), preventing unfair tax spikes on minor salary increases.
Frequently Asked Questions (FAQ)
Can I switch between New and Old Tax Regimes every year?
Salaried individuals without business income can select their preferred regime annually at the time of filing their Income Tax Return (ITR-1 / ITR-2). Taxpayers with Business or Professional income (ITR-3 / ITR-4) can switch out of the New Regime only once in their lifetime.
Which employer deductions are allowed under the New Tax Regime?
The New Tax Regime allows employer contributions to NPS under Section 80CCD(2) up to 14% of Basic + DA for Central Government employees and 10% for private sector employees. Transport allowance for specially-abled employees and official travel reimbursements are also permitted.