How To Use The ITR Calculator

A fast, visual, and no-nonsense guide to compute your income tax under the New and Old regimes — with practical tips, optimization ideas, and must‑know do’s & don’ts.

calculate Open Calculator compare_arrows Compare Regimes

Overview & Key Ideas

The calculator computes your estimated tax for FY 2025‑26 (AY 2026‑27). It supports both regimes, senior citizen slabs, surcharge, 87A rebate, marginal relief, and more. All calculations run locally in your browser.

New Regime — Quick Facts

  • Lower rates, minimal deductions. Standard deduction available for salary/pension.
  • Simple, default choice for many with low to moderate deductions.
  • Great for those who prefer straightforward compliance.

Old Regime — Quick Facts

  • Allows popular deductions (80C, 80D, HRA, home loan interest, etc.).
  • Potentially lower tax if your total eligible deductions are substantial.
  • Requires entering deduction amounts accurately.
Tip: If your deductions are high, Old Regime may win. If not, New Regime is often better.

Choosing New vs Old Regime

Use the Compare tool to see which regime gives you a lower tax for your profile. As a rule of thumb, the Old Regime becomes competitive when your total deductions exceed a certain break‑even point.

Start Here
Open Compare, choose “Income Type”, enter income, pick a deduction profile, hit Compare.
Adjust Profile
Move between Minimal/Moderate/High deductions to mirror your real situation.
Decide
Pick the regime with the lower estimated tax, then proceed to detailed calculator.

Quick Start (2 minutes)

  1. Open the Income Tax Calculator.
  2. Select your Age Category and Residential Status.
  3. Enter income details (salary or other income). Use clean numbers (e.g., 1200000).
  4. Pick a regime (or try both via Compare). If Old, add deductions you actually claim.
  5. Press Calculate to view Estimated Tax and effective rate.
Screenshot: Calculator — Inputs
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Screenshot: Calculator — Results
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Step‑by‑Step (New Regime)

  • Select New Regime. Enter your gross salary or relevant income.
  • Standard deduction is applied automatically for eligible salary/pension.
  • Employer NPS contribution (80CCD(2)) may still apply as per rules.
  • Review 87A rebate, surcharge, and cess effects in the result summary.
  • Note your effective tax rate for quick comparisons.
Screenshot: New Regime summary with effective rate
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Step‑by‑Step (Old Regime)

  • Enable Old Regime. Add deductions you truly claim: 80C, 80D, 80CCD(1B), 80G, etc.
  • Enter HRA or home‑loan interest under appropriate heads if applicable.
  • Senior citizens: verify slab differences and medical deduction caps.
  • Check the net taxable income; verify surcharge and marginal relief if applicable.
  • Compare Old vs New again if results are close.
Screenshot: Old Regime deductions selection
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Calculator Features

speed Real‑time Results

Instant updates as you change inputs. No waiting, no loading.

lock Privacy‑First

Runs entirely in your browser. Your data never leaves your device.

percent Effective Rate

See your true tax burden to make smarter planning decisions.

tune Scenario Testing

Toggle deductions and compare regimes to evaluate outcomes.

Pro Tips & Tricks

  • Keep numbers clean (e.g., 1200000). The tool formats results for you.
  • Try the Compare page first; it quickly reveals the better regime.
  • Use the effective rate to communicate outcomes to stakeholders.
  • Senior citizens: toggle relevant options; 80D caps differ.
  • Saving for retirement? Factor employer NPS (80CCD(2)) correctly.

Optimization Playbooks

Maximize 80C (Old)
Use PPF/ELSS/EPF/life insurance principal to reach the cap if it meaningfully lowers tax vs New Regime.
Health First (80D)
Check family/parents coverage and age to apply the right caps. Senior caps are higher.
NPS Strategy
Use the additional 80CCD(1B) limit and account for employer 80CCD(2) where applicable.

Screenshots To Capture

  1. Calculator Inputs (with Age Category and basic income filled)
  2. New Regime Result (showing estimated tax and effective rate)
  3. Old Regime Deductions Panel (popular deductions enabled)
  4. Old Regime Result (showing impact of deductions)
  5. Compare Page (before and after pressing Compare)
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Do’s & Don’ts (ITR Essentials)

Do’s
  • Reconcile Form 26AS/AIS/TIS with your entries.
  • Verify employer TDS and PAN–Aadhaar status.
  • Keep proofs for deductions claimed (receipts, statements).
  • Report all income heads: salary, interest, capital gains, rent, others.
  • File before due dates; track notices and acknowledgements.
Don’ts
  • Don’t overstate deductions; mismatches trigger notices.
  • Don’t ignore capital gains on mutual funds/stocks/real estate.
  • Don’t assume employer NPS equals personal NPS treatment.
  • Don’t miss advance tax when applicable.
  • Don’t wait until the last day to e‑verify and respond.

Ready to try it now?

Open the calculator and run your scenario in under 2 minutes.

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