Old vs. New: The Fundamental Choice
The core difference between the two tax regimes is a trade-off between deductions and tax rates. The old tax regime allows you to claim a host of deductions, including House Rent Allowance (HRA), investments under Section 80C, health insurance premiums,
and more. This can significantly reduce your taxable income, but the tax slab rates are higher. Conversely, the new tax regime, which is the default option, offers lower, more simplified tax rates but requires you to forgo most of those popular deductions. Your choice impacts your final tax outgo, making it essential to understand which structure benefits you more.
Understanding the Standard Deduction
The standard deduction is a flat amount that salaried individuals and pensioners can subtract from their gross salary, reducing their taxable income. For the financial year 2025-26, this deduction is available under both tax regimes, but the amounts differ. Under the old tax regime, the standard deduction is ₹50,000. The new tax regime offers a higher standard deduction of ₹75,000. This is a straightforward calculation: simply reduce your gross salary by this amount before applying tax slabs. This is one of the very few deductions allowed under the simplified new regime.
How to Calculate HRA Exemption
House Rent Allowance (HRA) is a major tax-saving component for salaried individuals living in rented accommodation. It is crucial to remember that you can only claim HRA exemption if you opt for the old tax regime; it is not available in the new regime. The amount of HRA that is exempt from tax is the lowest of the following three figures: 1. The actual HRA amount received from your employer. 2. For those living in metro cities (Delhi, Mumbai, Kolkata, Chennai), 50% of your basic salary. For other cities, it is 40% of your basic salary. 3. The actual rent paid annually minus 10% of your basic salary. The term 'salary' for this calculation typically includes your basic salary plus any dearness allowance. You must perform this calculation to find the exact amount you can deduct from your income under the old regime.
A Side-by-Side Comparison: An Example
Let's put this into practice with an example. Meet Anjali, who works in Mumbai. Her annual basic salary is ₹10,00,000, and she receives an HRA of ₹4,00,000. She pays an annual rent of ₹4,20,000. Under the old regime, her HRA exemption is the lowest of: 1. Actual HRA received: ₹4,00,000. 2. 50% of basic salary (metro): ₹5,00,000. 3. Rent paid (₹4,20,000) minus 10% of basic salary (₹1,00,000): ₹3,20,000. So, her HRA exemption is ₹3,20,000. Her taxable income under the old regime, after the ₹50,000 standard deduction and HRA exemption, would be significantly lower. Under the new regime, she cannot claim HRA. Her taxable income is calculated by simply subtracting the standard deduction of ₹75,000 from her gross salary.
Calculating Final Tax Liability
Continuing with Anjali's example, let's assume her gross salary is ₹15,00,000 (including basic and HRA). Old Regime: Her taxable income is ₹15,00,000 - ₹50,000 (Standard Deduction) - ₹3,20,000 (HRA) = ₹11,30,000. Assuming no other deductions, she would pay tax on this amount as per the old slab rates. New Regime: Her taxable income is ₹15,00,000 - ₹75,000 (Standard Deduction) = ₹14,25,000. She would pay tax on this higher income, but at the lower rates of the new regime. For many, especially those with incomes up to ₹12 lakhs, the new regime's rebate makes it a clear winner, resulting in zero tax. However, for higher earners with significant deductions like HRA and 80C, the old regime can still be more beneficial.
Don't Forget Other Deductions
While HRA and standard deduction are major factors, the old tax regime's strength lies in its wide array of other deductions. This includes up to ₹1.5 lakh under Section 80C for investments in PPF, ELSS, life insurance, and more, plus deductions for health insurance premiums (Section 80D) and interest on home loans. When making your comparison, you must account for all the deductions you are eligible for and actively use. If your total claimable deductions (including HRA) are substantial, typically exceeding ₹3.75 lakhs, the old regime often becomes the more tax-efficient choice. If not, the simplicity and lower rates of the new regime will likely serve you better.
















