Old vs New Tax Regime: Which One Should You Pick?

Since 2020, every salaried person in India has faced the same question: should I pay tax under the old regime or the new regime? Both are legal. Both use the same income. But the tax bill can be very different. Let me walk you through both options in plain words so you can decide for yourself.

How the Two Regimes Work

Old regime is the system most of us grew up with. You take your salary, subtract deductions like 80C (up to Rs 1.5 lakh), 80D (health insurance), HRA (house rent allowance), and standard deduction of Rs 50,000. Then you pay tax on what is left, using the old slab rates: no tax up to Rs 2.5 lakh, 5% from 2.5 to 5 lakh, 20% from 5 to 10 lakh, and 30% above 10 lakh.

New regime (Section 115BAC, now Section 202 of the Income Tax Act 2025) works the other way. The tax rates are lower, but you give up most deductions. No 80C, no 80D, no HRA. You only get the standard deduction of Rs 75,000 for salaried people. In return, the slabs are friendlier: no tax up to Rs 4 lakh, 5% from 4 to 8 lakh, 10% from 8 to 12 lakh, 15% from 12 to 16 lakh, 20% from 16 to 20 lakh, 25% from 20 to 24 lakh, and 30% above 24 lakh.

The big sweetener: under the new regime, income up to Rs 12 lakh pays zero tax thanks to the rebate under Section 87A. With the Rs 75,000 standard deduction, a salaried person earning up to Rs 12.75 lakh pays no tax at all.

Key Differences at a Glance

• Deductions: Old regime lets you claim 80C, 80D, HRA, home loan interest and more. New regime allows almost none, except the Rs 75,000 standard deduction.
• Tax rates: New regime slabs are lower at every level, but the old regime can beat them if your deductions are large.
• Zero-tax limit: Rs 12 lakh (Rs 12.75 lakh for salaried) under the new regime vs Rs 5 lakh under the old regime.
• Default option: The new regime is now the default. If you do nothing, your employer will deduct TDS using the new regime.
• Switching: Salaried people can switch regimes every year. Business owners who opt out of the new regime face stricter rules to come back.

Who Should Choose Which?

Pick the old regime if you claim big deductions. A typical case: you invest Rs 1.5 lakh in 80C (PPF, ELSS, EPF), pay Rs 25,000 health insurance premium under 80D, and claim Rs 2 lakh HRA. That is nearly Rs 4 lakh in deductions, which often makes the old regime cheaper despite higher slab rates.

Pick the new regime if you do not invest much for tax saving, or your deductions are small. Young earners with no home loan, no big 80C investments, and modest rent usually save more under the new regime. It is also simpler: no paperwork, no proof submissions.

A Worked Example

Take Priya, who earns Rs 15 lakh a year. She invests Rs 1.5 lakh under 80C, pays Rs 20,000 for health insurance, and claims Rs 1.8 lakh HRA.

Old regime: 15,00,000 minus 50,000 (standard deduction) minus 1,50,000 (80C) minus 20,000 (80D) minus 1,80,000 (HRA) = Rs 11,00,000 taxable. Tax works out to roughly Rs 1,43,000 including cess.

New regime: 15,00,000 minus 75,000 (standard deduction) = Rs 14,25,000 taxable. Tax works out to roughly Rs 1,45,000 including cess.

In Priya’s case the two are almost equal, so she could pick either. But if she had no HRA and no 80D, the new regime would clearly win. Try your own numbers in the calculator above; the answer changes fast with small differences in deductions.

Frequently Asked Questions

Can I change my regime every year?
Yes, if you are salaried with no business income. You can pick a different regime each financial year when filing your return.

What if I have business or freelance income?
You can still choose, but the rules are tighter. If you opt out of the new regime once, coming back has conditions. Read the fine print or ask your CA before switching.

Do I need to tell my employer which regime I want?
Yes. Your employer deducts TDS based on the regime you declare at the start of the year. If you do not declare, they use the new regime by default.

Is the Rs 12 lakh zero-tax limit automatic?
Mostly yes. The rebate under Section 87A applies automatically when your total income is within the limit. No separate claim is needed.

Which regime is better for someone earning Rs 8 lakh with no investments?
Almost certainly the new regime. With no deductions to claim, the lower slab rates win easily.

Does the new regime allow any deductions at all?
Very few. The main ones are the Rs 75,000 standard deduction for salaried people and employer NPS contributions. 80C, 80D, and HRA are not available.