SOURCE-AWARE TAX AND PAY SCENARIOS

Old vs New Tax Regime Comparison

Compare old and new tax-regime scenarios after you enter the taxable base and effective rate for each regime and period.

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Your result

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How it works

Each scenario equals the comparable taxable base × the effective rate entered for that regime; the difference is shown.

Assumptions and limits

This does not decide your eligibility, deductions, option timing, slab treatment, cess, surcharge, or legal outcome. Use the official portal and current guidance for the selected period.

About this calculator

This comparison prevents a misleading built-in rule by requiring you to enter the effective rates you have verified for the same income base and period.

What this tool helps you check

Compare two user-verified effective-rate scenarios for the same income base and period; it does not choose a regime for you.

How to use it

  1. Check the assumptions shown for this old vs new tax regime comparison before entering a scenario.
  2. Choose the FY and AY or tax-year label, then enter like-for-like taxable income and verified effective rates.
  3. Select Calculate to keep the inputs and method visible beside the result.
  4. Use the official portal to decide eligibility and option timing; this output is only a comparison of entered scenarios.

Build a reliable scenario

How to use and verify your Old vs New Tax Regime Comparison result

Old vs New Tax Regime Comparison helps you check a specific tax, salary & work question with figures that apply to you. Compare old and new tax-regime scenarios after you enter the taxable base and effective rate for each regime and period. Compare two user-verified effective-rate scenarios for the same income base and period; it does not choose a regime for you. The page keeps the method and limits visible so the result can be understood, compared, and checked instead of treated as an unexplained answer.

Before calculating

Prepare Financial year (FY), Assessment year / tax year label, Comparable taxable-income base, Old-regime effective rate verified for your scenario and New-regime effective rate verified for your scenario. Check the assumptions shown for this old vs new tax regime comparison before entering a scenario. Choose the FY and AY or tax-year label, then enter like-for-like taxable income and verified effective rates. Select Calculate to keep the inputs and method visible beside the result. Use the official portal to decide eligibility and option timing; this output is only a comparison of entered scenarios. Keep units, dates, currency, and time periods consistent.

What changes the result?

The stated method is: Each scenario equals the comparable taxable base × the effective rate entered for that regime; the difference is shown. Change one assumption at a time to see which input drives the result, then compare scenarios on the same basis.

When checking the answer

This does not decide your eligibility, deductions, option timing, slab treatment, cess, surcharge, or legal outcome. Use the official portal and current guidance for the selected period. Estimate only — not an income-tax return, GST invoice, payroll record, tax opinion, or official calculation. Verify the applicable period and official source before filing or paying.

Quick verification checklist

  • • Confirm the date and unit of every input.
  • • Replace defaults with values that match your case.
  • • Compare the answer with a second scenario.
  • • Use the official source for regulated or high-impact decisions.

Source and update

Last reviewed: 2026-08-10

Income Tax Department — New vs. Old Tax Regime FAQs

Frequently asked questions

What does this old vs new tax regime comparison estimate?

This comparison prevents a misleading built-in rule by requiring you to enter the effective rates you have verified for the same income base and period.

Can I enter amounts in lakhs or crores?

Yes. Enter the full rupee amount or an equivalent decimal value. Results are formatted with Indian number grouping for readability.

Is the result an official quote, filing, or recommendation?

No. It is an educational estimate based on the values entered. Verify a financial, tax, payroll, or investment decision against the applicable official record or provider.

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