Tools & Calculators
Free calculators for income tax, GST, TDS and personal finance, built on the Income-tax Act, 2025 as it applies to Tax Year 2026-27. Each one runs in your browser, stores nothing, and produces a sheet you can print or save.
Income Tax Calculator — Old vs New Regime
Compare both regimes side by side for Tax Year 2026-27 and see which one costs less, with a full head-wise computation you can print.
- Slabs under Section 202(1) and the First Schedule
- Rebate under Section 156 with marginal relief
- Exempt allowances capped at their statutory limits
- Capital gains under Sections 196, 197 and 198
- Crypto and virtual digital assets at a flat 30%
- Printable computation sheet and PDF download
Advance Tax Calculator & Instalment Planner
Work out what is due at each instalment date, and what interest is running if a date was missed.
- Instalment schedule under Section 408
- Live countdown to the next due date
- Interest under Sections 424 and 425
- The 12% and 36% tolerance applied correctly
- Relief for income arising late in the year
- Payment plan with challan particulars
HRA Exemption Calculator
Work out the exemption on house rent allowance and what it is actually worth against the new regime.
- Least of the three tests, computed month by month
- Handles a change of city or rent during the year
- Metro and non-metro rates applied automatically
- Shows the effect on your regime choice
EMI Calculator
Monthly instalment, total interest and a full amortisation schedule for a home, vehicle or business loan.
- Instalment, total interest and total outgo
- Month-by-month amortisation schedule
- Effect of part prepayment on tenure and interest
- Downloadable repayment schedule
GST Late Fee & Interest Calculator
Late fee and interest on a delayed GSTR-1, GSTR-3B or annual return, worked out to the day.
- Late fee per day with the prescribed ceilings
- Separate treatment of nil returns
- Interest on the net cash liability
- Return-wise and period-wise summary
TDS Late Fee & Interest Calculator
Interest on late deduction and late payment, plus the late filing fee on a delayed TDS return.
- Interest for late deduction and late payment
- Late filing fee with the statutory cap
- Quarter-wise computation
- Summary ready for correction statements
GST Due Date Calendar
Month-by-month due dates for every GST return, with turnover and scheme filters.
- GSTR-1, GSTR-3B, CMP-08 and annual returns
- Monthly and quarterly filers handled separately
- Highlights what is due next
- Whole-year view you can print
Disclaimer
This calculator is provided only to give quick and easy access to a basic tax calculation. It does not purport to give a correct computation of income or tax in every circumstance. For filing a return, or for any other statutory use, the exact computation should be made under the provisions contained in the relevant Acts, Rules and notifications, and a professional should be consulted before any final decision is taken. The output is for information only and no liability is accepted for any action taken on the basis of it.