Which income tax regime should I choose?

Open the income tax calculator and compare old vs new with your deductions. The cheaper regime depends on salary structure and investments — there is no universal answer.

Does the GST calculator know my product’s rate?

No. You choose the GST rate. India has multiple slabs; the tool adds or removes tax and can split CGST/SGST or IGST at the rate you enter.

Are these results safe to file with?

Use them to understand numbers, then file with official utilities or a tax professional. Always cross-check slabs and exemptions for the current tax year.

CalcMantra · India

Income Tax, GST & Tax Calculators for India

Free income tax (old vs new regime), GST, TDS, Section 80C, advance tax, and capital gains calculators for India. Clear breakdowns — not a tax filing.

CalcMantra tax calculators help you compare regimes, estimate GST on a bill, check TDS, and sketch capital gains or 80C room using the rates and FY notes on each page.

These pages are for planning and learning. They are not e-filing software and do not replace a CA for complex cases, audits, or notices.

Income tax GST TDS Tax year notes

Income Tax CalculatorFree income tax calculator for India — compare old vs new regime for Tax Year 2026-27 with deductions and a clear breakdown.Open calculator →Capital Gains CalculatorEstimate tax on equity and property capital gains using current headline rates.Open calculator →GST CalculatorFree GST calculator for India — add or remove GST and split CGST/SGST or IGST at the rate you choose.Open calculator →TDS on Salary CalculatorEstimate monthly TDS as one-twelfth of new-regime income tax on salary. Employer Form 16 can still differ.Open calculator →Section 80C CalculatorSee how much of the ₹1.5 lakh 80C cap you have used. 80C applies in the old regime, not the default new regime.Open calculator →Advance Tax CalculatorSplit estimated annual tax into the four statutory advance-tax instalments if tax is ₹10,000 or more.Open calculator →

Tax calculators FAQs

Which income tax regime should I choose?: Open the income tax calculator and compare old vs new with your deductions. The cheaper regime depends on salary structure and investments — there is no universal answer.
Does the GST calculator know my product’s rate?: No. You choose the GST rate. India has multiple slabs; the tool adds or removes tax and can split CGST/SGST or IGST at the rate you enter.
Are these results safe to file with?: Use them to understand numbers, then file with official utilities or a tax professional. Always cross-check slabs and exemptions for the current tax year.

Looking for scenario answers with tables? See popular finance questions or the calculator guides.