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Tax Calculator

A transparent income-tax estimator. Enter your income, choose a preset or type your own slabs, and the calculator taxes each slice of income at its own rate, applies a rebate, an optional surcharge and cess, and shows a slab-by-slab table so you can see exactly where the tax comes from. Because every slab, deduction and rate can be edited it works for any country or tax year. A second mode adds or removes a flat sales tax or VAT.

Finance Runs in your browser

Estimate Your Tax

Estimate only, not tax advice. The India preset follows the new tax regime for AY 2026-27 (income earned in FY 2025-26) from incometax.gov.in (slabs, section 87A rebate, 4% cess) and the Income Tax Department threshold page (standard deduction ₹75,000), checked 24 October 2026. Rules change every Budget and differ by taxpayer, so verify with the official source or a tax professional.

Choosing a preset fills the boxes below; you can then edit every value.
Total income for the year before deductions.
Subtracted from income first (set 0 if it does not apply to you).
Any other amount allowed in your regime.
Example: “800000 10” means the part of income up to 8,00,000 is taxed at 10% (from the previous limit). The last line must start with “above”.
India section 87A: 12,00,000. Use 0 for no rebate.
India section 87A: 60,000.
India: just above 12,00,000 the extra tax cannot exceed the extra income.
Single flat % on tax; India: 10% above 50 lakh, 15% above 1 crore, 25% above 2 crore.
India health and education cess: 4%.

How to Use the Tax Calculator

  1. Pick a calculation: income tax, add VAT, or remove VAT.
  2. For income tax, choose the preset (or Custom), enter your annual income and check the deductions, slabs, rebate and cess boxes.
  3. Press Calculate.
  4. Read the estimate, the effective rate and the slab-wise table; change any assumption and calculate again.

About This Tool

Salaried people planning take-home pay, freelancers sizing an advance-tax payment, students learning how marginal tax works, and shop owners who need to add or remove VAT.

Input: Numbers  ·  Output: Tax estimate.

Features and Limitations

Features

  • India new-regime preset with its source and date stated.
  • Fully editable slabs, deductions, rebate, surcharge and cess.
  • Marginal-relief handling of the rebate threshold.
  • Slab-by-slab table and written working.
  • Flat sales tax / VAT add and remove mode.

Limitations

  • It is an estimator: it does not know your exact deductions, residency, age, capital gains or special-rate income.
  • Only the new-regime slabs for an individual under 60 are preset. Old-regime, senior-citizen or other-country slabs must be typed in.
  • Surcharge is one flat percentage and surcharge marginal relief is not modelled.
  • Slabs and rebates change with each Budget; the preset is as of 24 October 2026. It is labelled AY 2026-27 because that is the year the Income Tax Department page shows. News reports say Budget 2026 left the new-regime slabs unchanged for FY 2026-27 (AY 2027-28), but that was not confirmed on an official page, so check before relying on it.
  • Results are computed in your browser; nothing you enter is sent to a server.

Example

With the India preset, income ₹15,00,000 minus the ₹75,000 standard deduction is ₹14,25,000 taxable. Slab tax is ₹20,000 + ₹40,000 + 15% of ₹2,25,000 = ₹93,750; the rebate does not apply above ₹12,00,000; cess 4% adds ₹3,750, so the estimate is ₹97,500.

Frequently Asked Questions

How are progressive tax slabs calculated?

Each slab’s rate applies only to the income inside that slab. For taxable income of ₹10,00,000 under the preset: 0% on the first ₹4,00,000, 5% on the next ₹4,00,000 (₹20,000) and 10% on the next ₹2,00,000 (₹20,000), so ₹40,000 before rebate and cess.

Where do the preset numbers come from?

Slabs, the ₹60,000 rebate up to ₹12,00,000 and 4% cess come from the Income Tax Department’s page for AY 2026-27 (incometax.gov.in/iec/foportal/help/individual/return-applicable-2); the ₹75,000 standard deduction from incometaxindia.gov.in (threshold limits). Checked on 24 October 2026.

What is marginal relief on the rebate?

Where taxable income is only a little above the rebate limit, the tax would otherwise jump. Marginal relief limits the tax to the amount of income above the limit. At ₹12,10,000 slab tax would be ₹61,500 but only ₹10,000 is payable before cess.

Can I use it for another country?

Yes. Choose Custom, enter each slab’s upper limit and rate on its own line, finish with an “above” line, and set the standard deduction, rebate, surcharge and cess to match your rules. Check the figures against your tax authority.

How do I add or remove VAT or sales tax?

To add: tax = net × rate ÷ 100 and gross = net + tax. To remove: net = gross × 100 ÷ (100 + rate). At 20%, a gross price of 1,200 has net 1,000 and tax 200.

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