Old vs New Tax Regime: How to Decide Which One Suits You
A step-by-step method to compare the two regimes using your own deductions, without relying on rules of thumb.
Individuals have two ways to compute income tax: the new regime, with lower slab rates and few deductions, and the old regime, with higher rates but a range of deductions and exemptions. Which one costs less depends on your own numbers.
The basic trade-off
- New regime: simpler, with lower rates across slabs and a limited set of deductions. It is the default regime.
- Old regime: allows deductions such as home loan interest on a self-occupied property, house rent allowance, life insurance and provident fund contributions, health insurance and others, within limits.
Slabs, rebates and the standard deduction are revised by Finance Acts. Use the figures for the current tax year from the Income Tax Department or our calculator rather than older charts. Since 1 April 2026 the Income-tax Act, 2025 governs, with a “tax year” replacing the previous year and assessment year, and new section numbers for the same ideas.
How to compare, step by step
- Add up your gross salary and other income for the year.
- List the deductions and exemptions you would actually claim under the old regime, such as HRA, home loan interest, and eligible investments and insurance.
- Compute tax under the old regime on the reduced income.
- Compute tax under the new regime, applying only the deductions it allows.
- Compare the two totals including cess, and pick the lower.
When each tends to suit
- People with few deductions, or those who prefer not to lock money into investments, often do better in the new regime.
- People with large deductions, such as a home loan plus HRA plus substantial eligible savings, may find the old regime cheaper.
These are tendencies, not rules. A difference of a few thousand rupees may not justify changing your investment behaviour.
Things to remember
- Salaried individuals can generally choose each year, while individuals with business income have limits on switching back to the old regime once they opt out. Check the current rule for your case.
- Tell your employer your choice early so TDS is deducted correctly, and you can still correct it in your return.
- Compare both regimes again each year, because your income and deductions change.
Run the numbers
Use the free calculators on Palgou to compare both regimes for the current tax year.
Frequently asked questions
Which regime is better, old or new?
It depends on your deductions. Compute tax under both and choose the lower one.
Can I switch between regimes every year?
Salaried individuals generally can. Persons with business income face restrictions, so check the current rule.
Is the standard deduction available in both regimes?
Check the current year’s provisions. The availability and amount have differed between the regimes in recent years.
Do I need to tell my employer which regime I choose?
Yes, so that TDS on salary is deducted on the right basis.
This article is for general information only and is not investment, tax or legal advice. Figures are illustrative, so confirm current rules and rates before making decisions.
Related reading
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- How EMI Is Calculated: Formula, Example and Ways to Reduce Interest
- NRI Taxation in India: Residential Status, Taxable Income and Key Rules
