Every filing season the same question comes up: should I file under the new tax regime or the old one? The honest answer is that it depends on how many deductions you actually claim. After the Budget 2025 changes, the new regime has become more attractive for most salaried taxpayers — but the old regime still wins for those with heavy deductions. Here is a plain-English way to decide, with the current slabs and a worked example.
The core difference
The new regime offers lower tax rates across wider slabs but takes away most deductions and exemptions. The old regime has higher rates but lets you reduce taxable income through deductions like Section 80C, 80D, HRA, home loan interest and many others. The new regime is now the default, so you have to actively opt for the old one if it suits you better.
New regime slabs for FY 2025-26
The Budget 2025 widened the new-regime slabs and raised the rebate so that resident individuals with taxable income up to Rs 12 lakh effectively pay no tax (a salaried person gets an additional Rs 75,000 standard deduction on top).
| Income slab | Rate |
|---|---|
| Up to Rs 4 lakh | Nil |
| Rs 4 lakh – Rs 8 lakh | 5% |
| Rs 8 lakh – Rs 12 lakh | 10% |
| Rs 12 lakh – Rs 16 lakh | 15% |
| Rs 16 lakh – Rs 20 lakh | 20% |
| Rs 20 lakh – Rs 24 lakh | 25% |
| Above Rs 24 lakh | 30% |
Plus applicable surcharge and 4% health & education cess. The 87A rebate makes income up to Rs 12 lakh tax-free under the new regime.
When the new regime usually wins
If you do not have large investments or loans to claim, the new regime is often simpler and cheaper. It tends to favour younger earners, people who rent without claiming much HRA, those without a home loan, and anyone who prefers to keep money liquid rather than locking it into tax-saving instruments. With the raised rebate, most salaried people earning up to about Rs 12–13 lakh now pay less under the new regime.
When the old regime usually wins
If you fully use deductions — a maxed-out 80C (Rs 1.5 lakh), health insurance under 80D, significant HRA, and especially home loan interest (up to Rs 2 lakh under section 24b) — the old regime can leave more money in your pocket despite the higher rates. The more you legitimately claim, the more attractive the old regime becomes, particularly at higher income levels.
A worked example
Take a salaried individual earning Rs 15 lakh. Under the new regime (after the Rs 75,000 standard deduction) tax works out to roughly Rs 1.0 lakh. Under the old regime, if they claim Rs 1.5 lakh (80C) + Rs 25,000 (80D) + Rs 2 lakh (home loan interest) + Rs 50,000 standard deduction, taxable income drops to about Rs 10.75 lakh and tax is broadly similar. The deciding factor is whether those deductions are real: if this person has no home loan and limited 80C, the new regime clearly wins; with a full deduction stack, the old regime edges ahead.
| Your profile | Likely better regime |
|---|---|
| Few deductions, no home loan | New regime |
| Home loan + full 80C + HRA | Old regime |
| Income up to Rs 12 lakh | New regime (often nil tax) |
Old regime slabs for comparison
The old regime keeps the long-standing slabs, with a higher basic exemption available to senior citizens. The trade-off for these higher rates is access to the full range of deductions and exemptions.
| Income slab | Rate |
|---|---|
| Up to Rs 2.5 lakh | Nil |
| Rs 2.5 lakh – Rs 5 lakh | 5% |
| Rs 5 lakh – Rs 10 lakh | 20% |
| Above Rs 10 lakh | 30% |
A rebate under section 87A keeps income up to Rs 5 lakh tax-free under the old regime. Plus surcharge and 4% cess.
What you give up under the new regime
Choosing the new regime means letting go of most of the deductions that define old-regime tax planning: Section 80C (investments like PPF, ELSS, life insurance and EPF), 80D (health insurance), HRA exemption, LTA, the Rs 2 lakh home loan interest deduction on a self-occupied property, and most of Chapter VI-A. A few benefits do survive in the new regime — the Rs 75,000 standard deduction for salaried taxpayers, the employer's NPS contribution under 80CCD(2), and certain others — but the broad rule is simpler rates in exchange for fewer claims.
The switching rule: salaried vs business income
This is where many people slip. A salaried individual with no business income can choose afresh every year — new regime one year, old the next, whatever saves more. But a taxpayer with business or professional income who opts out of the new regime to use the old one can switch back to the new regime only once in their lifetime, and after returning they generally cannot go back to the old regime again. So business owners should think carefully before opting out, because the door does not stay open.
How to decide for your situation
- Add up the deductions you realistically claim each year (80C, 80D, HRA, home loan interest, NPS and others).
- Compare your tax under both regimes using the actual numbers, not assumptions.
- Remember salaried individuals can usually switch between regimes year to year, while those with business income can opt out of the new regime only once.
- Factor in effort: the new regime needs far less documentation and proof.
High earners: watch the surcharge
At higher income levels, surcharge changes the maths. The new regime caps the highest surcharge rate at 25% (against 37% under the old regime), which lowers the effective tax rate for those earning above Rs 5 crore. So for very high earners with limited deductions, the new regime can be markedly cheaper. Conversely, someone with a large home loan, full 80C, substantial 80D and significant donations under 80G may still come out ahead under the old regime even at higher incomes. The only reliable way to know is to compute both.
Common mistakes when choosing
- Sticking with the old regime out of habit without re-running the numbers after the Budget 2025 changes.
- Forgetting that the new regime is now the default — you must actively opt for the old one each year (and salaried taxpayers do this in the return or via Form 10-IEA where required).
- Business owners switching to the old regime without realising they can return to the new regime only once.
- Counting deductions you do not actually claim, or double-counting the standard deduction.
There is no universally correct answer — it is genuinely personal to your income mix and what you claim. The safest approach is to run both calculations before you file and pick the one that costs less for that year. When we handle your ITR-1 filing we compare both regimes automatically and file under whichever saves you more. If your situation is complex (capital gains, business income, multiple properties), our ITR-2 and ITR-3 services cover it. For business filers, see our small-business ITR guide.
This article is general information, not tax or legal advice. Rules can change; confirm specifics for your business before acting.