How this calculator works
It adds up salary, business or professional income and other income such as interest and rent, applies the FY 2026-27 slabs for the regime you choose, then adds surcharge and 4% cess. TDS already deducted is subtracted. If ₹10,000 or more is still due, it splits the amount across the four instalment dates.
New regime slabs for FY 2026-27
Up to ₹4 lakh: nil. ₹4–8 lakh: 5%. ₹8–12 lakh: 10%. ₹12–16 lakh: 15%. ₹16–20 lakh: 20%. ₹20–24 lakh: 25%. Above ₹24 lakh: 30%. A rebate makes tax nil up to ₹12 lakh of taxable income, with marginal relief just above it. Budget 2026 kept these rates unchanged.
What it does not cover
Capital gains on shares, funds or property are taxed at special rates and are left out, as are agricultural income and losses carried forward. If you have these, treat the result as a starting point and check with a chartered accountant.