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Income Tax Old vs New Regime Calculator

Work out income tax old vs new regime instantly with clear inputs, formula shown and shareable results.

About Income Tax Old vs New Regime Calculator

The old regime allows deductions against wider slabs; the new regime offers lower rates but almost no deductions. Applying both slab structures to the same income shows the break-even level of deductions at which one overtakes the other.

Formula

Regime comparison

Old: tax on (income - deductions - standard deduction); New: tax on (income - standard deduction), lower slab rates

Worked example

With the default values below, Income Tax Old vs New Regime Calculator returns Saving From The Better Regime of $33,800.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Gross Annual Incomeminimum 0
1,500,000
Deductions Claimed Under The Old Regimeminimum 0
300,000

Results

Saving From The Better Regime
$33,800.00
Tax Under The Old Regime
$163,800.00
Tax Under The New Regime
$130,000.00
Which Regime Wins
The new regime is cheaper for these figures

Step by step

  1. 1Values used
  2. 2Regime comparison
  3. 3Saving From The Better Regime= 33,800.00
  4. 4Tax Under The Old Regime= 163,800.00
  5. 5Tax Under The New Regime= 130,000.00
  6. 6Which Regime Wins= The new regime is cheaper for these figures

Assumptions and limits

  • The result is derived only from the 2 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation or fees or charges into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • Tax figures are estimates based on the rates, caps and thresholds you enter. Real rules differ by jurisdiction and change every year, and personal circumstances alter the outcome. This is not tax or financial advice — confirm with a qualified adviser.
  • This is an estimate for general information and not professional financial, tax or legal advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Tax figures are estimates based on the rates, caps and thresholds you enter. Real rules differ by jurisdiction and change every year, and personal circumstances alter the outcome. This is not tax or financial advice — confirm with a qualified adviser.

Frequently Asked Questions

How many deductions make the old regime worthwhile?

Broadly, the more you claim the better the old regime looks. Below a moderate level of deductions the lower new-regime rates win.

Can the regime be changed each year?

Salaried taxpayers can usually switch annually; those with business income face stricter one-time rules.

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