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

Choosing between the old tax regime and the new tax regime can significantly affect your take-home pay and tax outgo. The old regime offers various deductions (e.g. 80C, HRA, 80D) but has higher slab rates in some brackets; the new regime has lower slab rates but most deductions are not available. This guide explains the key differences and how to use our income tax calculator to see which regime is better for you. We also link to our HRA exemption calculator for salaried employees who claim HRA.

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What is the Old Tax Regime?

Under the old tax regime, you can claim several deductions and exemptions that reduce your taxable income. Your tax is then calculated on the reduced taxable income using the old slab rates.

Common deductions and exemptions in the old regime

• 80C – Up to ₹1.5 lakh (ELSS, PPF, EPF, LIC, principal repayment of home loan, etc.).
• 80CCD(1B) – Additional ₹50,000 for NPS.
• HRA – House Rent Allowance exemption (subject to conditions). Use our HRA exemption calculator to estimate how much you can claim.
• 80D – Health insurance premium (up to ₹25,000 for self/family; more for senior citizens).
• 80E – Interest on education loan.
• 24(b) – Interest on home loan (up to ₹2 lakh for self-occupied property).
• Standard deduction – ₹50,000 for salaried individuals.

Because of these deductions, your taxable income can be much lower than your gross income. But the slab rates under the old regime are higher in certain income brackets compared to the new regime. So whether you pay less tax in the old regime depends on how much you can deduct. Use our income tax calculator to compute tax under both regimes and compare.

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What is the New Tax Regime?

The new tax regime was introduced to simplify taxation. Under it, most deductions and exemptions are not available (including 80C, HRA, 80D, 24(b) for home loan interest, etc.). In return, the income tax slab rates are lower for many taxpayers. You also get a higher standard deduction in the new regime (e.g. ₹75,000 for FY 2024–25 and later for salaried).

Who might benefit from the new regime

• Those with few or no deductions – If you don’t invest much in 80C, don’t claim HRA, and don’t have large home loan interest or health insurance claims, the lower slabs under the new regime can mean lower tax.
• Those who prefer simplicity – No need to chase 80C investments or maintain proof for HRA if the new regime already gives you a lower tax outgo.

Use our income tax calculator to enter your income and deductions and see the tax under both regimes. The calculator will help you decide which regime to opt for.

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Key Differences at a Glance

Aspect	Old regime	New regime
Deductions	80C, HRA, 80D, 24(b), 80E, etc.	Most not available (exceptions apply)
Standard deduction	₹50,000 (salaried)	Higher (e.g. ₹75,000)
Slab rates	Higher in some brackets	Lower in many brackets
Choice	Default for some; can opt in	You can choose every year (subject to rules)

Tax rules and limits change from year to year. Always use the latest income tax calculator and refer to the current Finance Act for exact slabs and deduction limits.

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Who Should Choose the Old Regime?

You may be better off in the old regime if:

• You have substantial deductions – For example, you invest ₹1.5 lakh in 80C, claim HRA (use our HRA exemption calculator to estimate), pay health insurance (80D), and have home loan interest (24(b)). In such cases, your taxable income drops a lot and the old regime can result in lower tax despite higher slab rates.
• You have home loan interest – Deduction under 24(b) up to ₹2 lakh can make the old regime attractive for many home buyers.
• You have high HRA – If you’re a renter and your HRA exemption is large, the old regime is often beneficial. Check with our HRA exemption calculator and then compare tax in both regimes using the income tax calculator.

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Who Should Choose the New Regime?

You may be better off in the new regime if:

• You have few or no deductions – For example, you don’t invest in 80C, don’t claim HRA, and don’t have big 80D or home loan interest. The lower slab rates and higher standard deduction can mean lower total tax.
• You want simplicity – You prefer not to lock money in 80C products just to save tax, and the new regime already gives you a lower or similar tax.
• Your income is in a bracket where the new regime slabs are significantly lower – This is common for middle-income earners with limited deductions. Use our income tax calculator to verify.

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Example: Same Income Under Both Regimes

Suppose a salaried person has gross income ₹12 lakh, HRA exemption ₹1.2 lakh, 80C investments ₹1.5 lakh, and 80D ₹15,000.

• Old regime – Taxable income = 12 − 1.2 − 1.5 − 0.15 − 0.5 (standard deduction) ≈ ₹8.65 lakh. Tax is calculated on this at old slab rates.
• New regime – No 80C, HRA, or 80D. Taxable income = 12 − 0.75 (standard deduction) = ₹11.25 lakh. Tax is calculated at new (lower) slab rates.

In this example, the old regime might still give lower tax because of the large deductions. But if the same person had no HRA and no 80C, the new regime could be better. The only way to know for sure is to run your numbers. Use our income tax calculator to enter your income and deductions and see tax under both regimes. You can also use the HRA exemption calculator to get your HRA figure and then feed it into the tax calculation.

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Can You Switch Between Regimes?

Depending on the current rules, salaried individuals may be able to choose the regime each year (e.g. at the start of the year or while filing). So you can try the new regime in one year and the old regime in another, subject to the law. Use our income tax calculator at the start of the financial year to decide which regime to opt for and to plan your investments (e.g. whether to invest in 80C or not).

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Practical Steps to Decide

1. List your income – Salary, other income, and gross total income.
2. List your deductions – 80C, HRA (use HRA exemption calculator), 80D, 24(b), 80E, etc., with approximate amounts.
3. Use the income tax calculator – Enter figures in our income tax calculator for both regimes and compare total tax and take-home.
4. Choose the regime that gives you lower tax and aligns with your preference (e.g. simplicity vs maximising deductions).

Compare both regimes with your numbers. Use our income tax calculator to see which regime saves you more tax, and our HRA exemption calculator if you claim HRA.

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Frequently Asked Questions

What is the difference between old and new tax regime?

Under the old regime you can claim deductions (80C, HRA, 80D, 24(b), etc.) and pay tax on reduced income at old slab rates. Under the new regime most deductions are not available but slab rates are lower and standard deduction is higher. Use our income tax calculator to see tax under both.

Can I switch between old and new tax regime?

Depending on the applicable rules, you may be able to choose the regime each year (e.g. for salaried employees). Check the current IT rules and use our income tax calculator to see which regime is better for you before opting.

Which tax regime is better for me?

It depends on your income and deductions. If you have large deductions (80C, HRA, 80D, home loan interest), the old regime often gives lower tax. If you have few deductions, the new regime may be better. Use our income tax calculator and HRA exemption calculator to compare both regimes with your figures.