The Core Choice: Old vs. New Regime
India's income tax system offers two parallel paths for taxpayers: the traditional 'old' regime and the streamlined 'new' regime, which is now the default option. The fundamental difference lies in a trade-off. The old tax regime allows you to lower your
taxable income by claiming a host of deductions and exemptions, such as those for investments under Section 80C, health insurance premiums under 80D, and, crucially, House Rent Allowance (HRA). In contrast, the new tax regime offers lower, more concessional tax slab rates but requires you to forgo most of those popular deductions. The choice isn't about which is universally better, but which is better for your specific financial situation.
Understanding HRA Exemption
House Rent Allowance is a component of your salary provided by an employer for accommodation expenses. Under the old tax regime, you can claim a significant tax exemption on the HRA you receive, provided you live in a rented property. The exemption is not available at all under the new tax regime; the entire HRA amount becomes fully taxable if you choose this option. The amount of HRA you can claim as exempt under the old regime is the minimum of the following three figures: 1) The actual HRA received from your employer. 2) The total rent paid annually minus 10% of your basic salary (plus Dearness Allowance, if applicable). 3) 50% of your basic salary if you live in a metro city (Delhi, Mumbai, Chennai, Kolkata) or 40% for non-metro cities.
Step 1: Calculate Tax Under the Old Regime
To figure out your tax liability under the old system, you need to calculate your net taxable income first. Start with your gross annual salary. From this, subtract the HRA exemption you calculated in the previous step. Next, subtract the standard deduction of ₹50,000. Then, continue to subtract all other deductions you are eligible for. This typically includes up to ₹1.5 lakh under Section 80C (for PPF, ELSS, life insurance), Section 80D (health insurance), and any other deductions for which you have made eligible payments or investments. The final figure is your net taxable income. Apply the old regime's tax slab rates to this amount to find your total tax payable.
Step 2: Calculate Tax Under the New Regime
The calculation for the new regime is much simpler. As of the financial year 2026-27, you start with your gross salary and are allowed a standard deduction of ₹75,000. Since exemptions like HRA and most deductions under Chapter VI-A (like 80C and 80D) are not permitted, this is a much quicker calculation. After subtracting the standard deduction, you arrive at your net taxable income. Apply the new, lower slab rates to this income to determine your total tax liability under this regime.
A Worked Example: Putting It Together
Let's consider an example. Priya earns a basic salary of ₹10 lakh with an HRA of ₹4 lakh. She lives in a non-metro city and pays an annual rent of ₹3.6 lakh. She also has ₹1.5 lakh in 80C investments. Old Regime: Her HRA exemption is the minimum of ₹4 lakh (actual HRA), ₹2.6 lakh (rent paid minus 10% of salary), and ₹4 lakh (40% of salary). So, her HRA exemption is ₹2.6 lakh. Her taxable income is ₹10 lakh (Basic) + ₹1.4 lakh (Taxable HRA) - ₹50,000 (Standard Deduction) - ₹1.5 lakh (80C) = ₹9.4 lakh. New Regime: Her taxable income is ₹14 lakh (Gross Salary) - ₹75,000 (Standard Deduction) = ₹13.25 lakh. By calculating the tax on both incomes using the respective slabs, Priya can clearly see which regime results in a lower tax outgo for her.
The Break-Even Point
So, when does the old regime become more attractive? It's a matter of maths. The new regime is often beneficial for those with lower incomes or those who don't utilize many tax deductions. However, as your salary and, more importantly, your potential deductions increase, the balance tips in favour of the old regime. A high HRA exemption is a powerful lever. If the total of your HRA exemption and other deductions (like 80C, 80D, home loan interest) is substantial, it will likely reduce your taxable income enough to overcome the higher tax rates of the old system. For many people paying significant rent in major cities, the HRA benefit alone can be the deciding factor that makes the old tax regime cheaper.
