Skip to main content
PaisaProof

Income Tax Calculator (Old vs New)

Compare your income tax under the old and new regimes for FY 2025-26 (AY 2026-27) — then see what investing the difference could grow to. Salaried, transparent slabs, no login.

Total salary income before any deductions

80C, 80D, HRA, home-loan interest, etc. (used for old regime only)

Return assumption if you invest the tax you save (% p.a.)

%

How long you keep redirecting the annual saving

yr

Lower tax under the

New regime

Saves ₹1,13,100/year vs the other regime

New regime

₹97,500

6.5% effective

Old regime

₹2,10,600

14.0% effective

Invest that ₹1,13,100/yr for 20 years

₹94,16,969

at 12% CAGR — the real cost of picking the wrong regime

FY 2025-26 (AY 2026-27) slabs, salaried standard deduction applied automatically (₹75k new / ₹50k old), §87A rebate and 4% cess included. Estimate for comparison — not tax advice. Surcharge and marginal relief are approximated near thresholds.

Want to save your scenarios?

Join the waitlist to unlock personalized tracking, advanced modeling, and custom reports.

Calculator guide

How to use the Income Tax Calculator (Old vs New)

Use this income tax calculator to compare old and new regime tax for FY 2025-26 and estimate what investing the annual saving could become.

Old regime vs new regime

The new regime usually works well for taxpayers with fewer deductions. The old regime can still be better when deductions such as 80C, HRA, 80D, or home-loan interest are meaningful.

This calculator keeps the comparison visible instead of hiding the calculation behind a single answer.

Why PaisaProof shows invested tax savings

A yearly tax saving is not just a one-year benefit. If you invest that saving consistently, it can compound into a separate goal corpus over time.

Frequently asked questions

Which financial year does this calculator use?+

It uses FY 2025-26, also known as assessment year 2026-27, for salaried estimates.

Is this tax advice?+

No. It is an estimate for comparison. Consult a qualified tax professional for filing decisions.

Does it include standard deduction?+

Yes. It applies salaried standard deduction assumptions for old and new regimes as noted in the result panel.

Related calculators