From FY 2023-24, most salaried people in India file under the New Tax Regime unless they choose the Old Tax Regime while submitting their return. The choice sounds simple, but it is one of the costliest mistakes you can make if you pick the wrong side. A wrong regime choice can mean paying thousands of rupees in extra tax, or leaving refunds on the table.
This guide explains how the two regimes differ, who usually benefits from each, and how to decide with numbers instead of guesswork.
What changed and why it matters
The New Regime was introduced to offer lower headline tax rates in exchange for giving up most deductions and exemptions. Over successive budgets, the slabs were revised and the Old Regime was kept alive for people who still rely on HRA, Section 80C investments, home loan interest, and medical insurance deductions.
Because the New Regime is now the default, doing nothing often means you file under New even when Old would have been cheaper. Your employer may also deduct TDS on the New Regime unless you submit a declaration to HR early in the financial year.
Side-by-side: what you keep and what you lose
| Topic | Old Regime | New Regime |
|---|---|---|
| Tax slabs | Higher rates at many income levels | Lower rates at many income levels |
| Standard deduction (salary) | Available | Available |
| Section 80C (PPF, ELSS, etc.) | Up to Rs 1.5 lakh | Not allowed |
| Section 80D (health insurance) | Allowed | Not allowed |
| HRA exemption | Allowed with proofs | Not allowed |
| LTA, professional tax (where applicable) | Often allowed | Not allowed |
| Home loan interest (Section 24) | Allowed within limits | Not allowed |
| Employer NPS (80CCD(2)) | Allowed | Allowed |
The table is a shorthand. Surcharge, rebate under Section 87A, and special income types can still change the final answer. That is why a calculator beat a rule of thumb for most salaried filers.
Old Regime: when it still makes sense
The Old Regime tends to win when your total deductions and exemptions are large compared with your gross salary. Common cases:
Heavy rent in metro cities. HRA exemption can shave a big chunk off taxable salary if you live in Mumbai, Delhi, Bengaluru, or Hyderabad and pay rent with valid receipts.
Full 80C usage. If you already contribute to EPF, PPF, ELSS, life insurance premiums, or home loan principal repayment, you may be using most of the Rs 1.5 lakh Section 80C bucket anyway.
Home loan interest. Interest on a self-occupied house can be a meaningful deduction under the Old Regime. Combined with 80C principal repayment, housing loans often tilt the math toward Old.
Family health insurance. Premiums for self, parents, and senior citizen parents under Section 80D add up quickly, especially if parents are above 60.
Additional NPS under 80CCD(1B). The extra Rs 50,000 deduction over 80C is only useful in the Old Regime for most salaried people planning NPS for retirement.
If several of these apply together, run the Old Regime numbers carefully before accepting the New Regime default.
New Regime: when lower slabs are enough
The New Regime is attractive when you do not claim many deductions in the first place. Typical profiles:
Early-career salaried employees living with parents and not paying rent.
Minimal 80C beyond mandatory EPF where the employee contribution is already counted but other voluntary savings are low.
Simple salary structure with few allowances and no home loan.
Freelancers or consultants with clean income but little structured tax-saving investment.
Budget revisions have made New Regime slabs more competitive over time. Even taxpayers who once needed Old Regime now find New Regime cheaper after slab changes, which is why you should re-run the comparison every financial year, not copy last year's choice.
Step-by-step: how to compare before filing
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Download Form 16, AIS, and Form 26AS from the income tax portal. Match TDS credits before you trust any estimate.
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List gross salary components including special allowances your employer shows separately.
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Under Old Regime, add every deduction you can legitimately claim: 80C, 80D, HRA, home loan interest, and others that apply to you.
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Under New Regime, start from salary minus standard deduction and any items still permitted (such as employer NPS under 80CCD(2)).
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Apply the correct slab rates for each regime, rebate under Section 87A if income is in the rebate band, and surcharge if your income is very high.
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Compare final tax liability including cess. Pick the regime with the lower number and keep proofs for whichever side you choose.
Use our Income Tax Calculator to run Old and New side by side with the same salary inputs. Adjust HRA, 80C, and home loan fields to mirror your real life, not an ideal spreadsheet.
Common mistakes to avoid
Copying a colleague's choice. Their rent, EPF, and investments are not yours. Regime selection is personal.
Ignoring employer TDS. If HR deducted tax on the New Regime all year but you file under Old Regime with large deductions, you may get a refund. The opposite creates tax payable at filing time.
Claiming HRA without valid rent proof. Old Regime HRA needs receipts, landlord PAN when required, and consistent declarations. See our guide on HRA when landlord PAN is missing if that applies.
Forgetting AIS income. Interest, dividends, or other entries in AIS still count even if they are missing from Form 16. Under-reporting triggers notices later.
Choosing Old Regime but not investing. Old Regime only helps if you actually make qualifying payments. Do not buy unnecessary insurance or funds just to save tax unless they fit your plan anyway.
After you decide: filing and proof
Once you pick a regime on the ITR portal, the return flows use that choice for computation. Keep deduction proofs for at least six years. Rent receipts, 80C statements, and home loan certificates should match what you entered.
If you are filing ITR-1, walk through our e-file ITR guide for portal steps and e-verification. For refund tracking or CPC notices, use the Tax Season hub for linked guides.
Want an expert to file for you?
ClearTax can review your regime choice, AIS mismatches, and multiple Form 16s before you submit.
Related Guides
- e-File Your Income Tax Return
- How to Claim HRA Without Landlord PAN
- How to Reply to Income Tax Notice 143(1)
- Income Tax Refund Not Received? Common Fixes
Need more help?
For more step-by-step tax instructions, browse our Taxes and Finance guides or compare both regimes with our free Income Tax Calculator.