New Income Tax Rules 2026 India: Key Changes in Tax Slabs, Deductions, and Filing You Must Know

The Union Budget 2025-26 introduced several significant changes to India's income tax framework that take effect from Assessment Year 2026-27. From revised tax slabs under the new regime to enhanced standard deductions and updated TDS provisions, these changes affect salaried individuals, professionals, senior citizens, and businesses alike. Understanding the new income tax rules for 2026 is essential for accurate tax planning, timely filing, and maximising legitimate savings under the law.

Revised Income Tax Slabs Under the New Tax Regime for 2026-27

The new tax regime, which became the default regime from AY 2024-25, received further revisions in the Union Budget 2025-26. Under the updated structure, income up to Rs 4 lakh is exempt from tax. Income between Rs 4 lakh and Rs 8 lakh is taxed at 5 per cent, between Rs 8 lakh and Rs 12 lakh at 10 per cent, between Rs 12 lakh and Rs 16 lakh at 15 per cent, between Rs 16 lakh and Rs 20 lakh at 20 per cent, between Rs 20 lakh and Rs 24 lakh at 25 per cent, and income above Rs 24 lakh at 30 per cent. The government also introduced a rebate under Section 87A that effectively makes income up to Rs 12 lakh tax-free for individuals opting for the new regime. This is a significant increase from the earlier threshold and benefits a large section of the salaried and middle-income population. The old tax regime continues to be available for those who wish to opt for it, but taxpayers must actively choose it during filing as the new regime applies by default.

Standard Deduction and Other Deduction Changes in 2026

The standard deduction for salaried employees and pensioners under the new tax regime has been increased to Rs 75,000 from the earlier Rs 50,000. This higher deduction reduces the effective taxable income and works in conjunction with the revised slabs to lower the overall tax liability. Under the old regime, the standard deduction remains at Rs 50,000, but taxpayers can continue to claim deductions under Section 80C (up to Rs 1.5 lakh), Section 80D (health insurance premiums), HRA exemption, and other provisions that are not available under the new regime. For senior citizens, the threshold for TDS on interest income under Section 194A has been raised to Rs 1 lakh (from Rs 50,000), reducing the compliance burden on elderly depositors. The government has also rationalised certain TDS rates and increased the threshold for TCS on foreign remittances under the Liberalised Remittance Scheme to Rs 10 lakh, easing the burden on individuals sending money abroad for education and other purposes.

Updated ITR Filing Deadlines and Compliance Requirements

The due date for filing income tax returns for individuals and non-audit cases remains 31 July 2026 for AY 2026-27. For taxpayers whose accounts are subject to audit, the deadline is 31 October 2026. The Income Tax Department has been progressively expanding the scope of pre-filled returns (ITR-1 and ITR-2 forms), incorporating data from Form 26AS, Annual Information Statement (AIS), and Taxpayer Information Summary (TIS) to simplify the filing process. For AY 2026-27, taxpayers should carefully verify all pre-filled data against their actual income records, as discrepancies can trigger notices under Sections 143(1) and 148. The updated return filing provisions also require disclosure of all bank accounts held during the year, details of foreign assets (for residents), and capital gains from virtual digital assets (cryptocurrency), which continue to be taxed at a flat 30 per cent with no deduction or set-off allowed. The penalty for late filing remains at Rs 5,000 for returns filed after the due date but before 31 December, and Rs 10,000 for returns filed after 31 December, with a reduced penalty of Rs 1,000 for taxpayers whose total income does not exceed Rs 5 lakh.

New Regime vs Old Regime: Which One Should You Choose in 2026

The choice between the new and old tax regimes depends on the taxpayer's income level, investment pattern, and eligible deductions. For individuals with taxable income up to Rs 12 lakh who do not have significant investments in tax-saving instruments, the new regime is clearly more beneficial due to the Section 87A rebate that makes this income effectively tax-free. For higher-income taxpayers who claim substantial deductions under Section 80C, 80D, 80E (education loan interest), and HRA, the old regime may still result in lower tax liability. As a general rule, if your total deductions and exemptions under the old regime exceed approximately Rs 3.75 lakh to Rs 4 lakh, the old regime is likely to be more advantageous. However, this calculation varies depending on the specific slab at which the marginal income falls. The Income Tax Department provides an online comparison tool on the e-filing portal that allows taxpayers to calculate their liability under both regimes and make an informed choice.

Key Takeaways for Taxpayers in 2026

The new income tax rules for 2026 offer substantial benefits to middle-income taxpayers through the revised slab structure and the Rs 12 lakh rebate under the new regime. The increased standard deduction of Rs 75,000 provides additional relief to salaried employees and pensioners. Senior citizens benefit from higher TDS thresholds on interest income. Taxpayers should verify all pre-filled data in their returns carefully, as the expanded data-sharing framework means that discrepancies are more likely to be detected. The choice between old and new regimes should be made after calculating the actual liability under both options using the online comparison tool. Filing deadlines remain 31 July 2026 for non-audit cases and 31 October 2026 for audit cases, and late filing attracts penalties that can be avoided by planning the return preparation process early.