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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Enter your values and choose Calculate. Your inputs stay on this device.
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
- 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.
Source and update
Last reviewed: 2026-08-10
Income Tax Department — New vs. Old Tax Regime FAQsFrequently 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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