Guide, assumptions & sources
What this toolkit does, what it does not do, and where to verify your tax result.
Tax year and scope
The main tax estimator is designed around Tax Year 2026–27 under the Income-tax Act, 2025, as amended by the Finance Act, 2026. The new-regime normal slab structure for eligible individuals/HUF-style cases is 0% up to ₹4 lakh, 5% from ₹4–8 lakh, 10% from ₹8–12 lakh, 15% from ₹12–16 lakh, 20% from ₹16–20 lakh, 25% from ₹20–24 lakh, and 30% above ₹24 lakh.
The old-regime estimator uses common individual slabs and age-based basic exemption thresholds. The actual tax outcome can depend on residential status, special-rate income, rebate eligibility, deductions, surcharge, marginal relief, rounding, and other provisions.
Features included
- Basic tax estimate and old/new regime comparison.
- Advanced annual income planner with income heads, deductions and credits.
- Salary and simplified HRA exemption estimator.
- Illustrative eligible-equity capital gains estimate.
- Advance-tax instalment planning.
- Browser print / Save as PDF for results.
Known limitations
- Does not reproduce all official calculator fields or validations.
- Does not calculate all special-rate incomes, capital-gains categories, exemptions, losses, MAT/AMT, surcharge marginal relief or interest.
- Advance tax output is an indicative schedule, not a determination of whether you are legally required to pay.
- HRA and capital gains calculators cover simplified scenarios only.
- Non-individual categories, treaty cases and business-income regime elections require separate review.
Official references
- Income Tax Calculator User Manual
- Official Income Tax Department calculator
- Income-tax Act, 2025 reference materials
Not legal or financial advice. Confirm current law and your specific facts with the official portal or a qualified tax professional before filing or making payments.