Income Tax Calculator
v1.3Estimate income tax on your salary with deductions and effective rate.
Last updated · Last reviewed
Inputs
Standard deduction, 80C, HRA, etc.
Use your applicable slab rate.
Result
Estimated Tax
₹210,000.00
At 20% on taxable income
Saved calculations remain on this device unless you choose to share them. No tracking, no account needed.
Related calculators
Formula
Taxable Income = max(0, Income − Deductions)\nTax = Taxable Income × Rate\nEffective Rate = Tax ÷ Income × 100\n\nVariables: Income (gross annual), Deductions (80C, HRA, standard deduction, etc.), Rate (effective % slab).\n\nAssumptions: Flat applicable rate; surcharge & cess excluded; old vs new regime selected by user.\n\nOfficial References: Central Board of Direct Taxes (CBDT), Income Tax Department of India, Internal Revenue Service (IRS), HM Revenue & Customs (HMRC).
How it works
Estimates income tax payable from gross income, total deductions, and an applicable tax rate. Works for flat-rate jurisdictions and as a slab approximation when you enter your effective rate.
Example
Example: Income ₹12,00,000, deductions ₹1,50,000, rate 20% → Taxable ₹10,50,000 × 20% = ₹2,10,000 tax; effective rate 17.5%.
Official Sources & References
The formulas, rates and definitions used by this calculator are aligned with the following official sources:
- Internal Revenue Service (IRS) — U.S. federal tax brackets, standard deduction, retirement contribution limits.
- Income Tax Department, Government of India — Indian slab rates, Section 80C / 24(b) / HRA rules.
- HM Revenue & Customs (HMRC) — UK income tax, National Insurance, ISA / pension allowances.
- Canada Revenue Agency (CRA) — Canadian federal/provincial tax and TFSA / RRSP limits.
We use only primary sources — regulators, standards bodies and scheme operators. See our full sourcing policy for details. Sources & References Policy · Calculator Methodology · How We Verify Formulas
Trust & Accuracy
Formula verified
Verified against official IRS / HMRC / Income Tax Department slab logic.
Last reviewed
June 27, 2026
Accuracy tested
Edge cases tested, formula validation and manual verification completed.
Available for
United States, Canada, United Kingdom, Australia, India, European Union.
Currency support
USD · INR · CAD · AUD · GBP · EUR
Privacy
No information entered into this calculator is stored on our servers unless you explicitly choose to save or share your calculation.
Print, share & save
Use the Save, Share, Copy, PDF, CSV and Print actions under the result panel.
Accessibility
Keyboard navigable, screen-reader friendly labels, responsive on mobile and desktop.
Learn more: How we verify formulas · How we test accuracy · Methodology · Editorial policy
Recent Updates
We continuously review and improve our calculators to keep formulas, assumptions and references accurate.
View change log (4)Show
- v1.3
Added Trust & Accuracy panel and machine-readable change log.
- v1.2
Added Save, Share, PDF, CSV and Print actions to results.
- v1.1
Added global currency selector (USD, INR, CAD, AUD, GBP, EUR).
- v1.0
Initial calculator release with verified formulas and Official Sources.