Income tax calculator India: old regime versus new regime
Enter your income and, if you want the old regime, your deductions. The calculator works out tax under both regimes and shows which is lower, with every step shown.
How to use this calculator
- Enter your gross annual income and say whether it is salary or pension (this gives the standard deduction).
- Choose your age group; it changes the old-regime slabs.
- For the old regime enter your 80C investments, health insurance, NPS, home loan interest, HRA exemption and any other deductions. The new regime ignores these.
- Compare the two totals, the monthly income after tax and the working tables.
Worked examples
Example 1
A salaried person aged under 60 with ₹15,00,000 income, claiming 80C of ₹1,50,000 and health insurance of ₹25,000.
You enter
| Gross annual income | ₹15,00,000 |
|---|---|
| Do you earn a salary or pension? | Yes (standard deduction applies) |
| Your age (old regime slabs) | Below 60 |
| Section 80C investments (old regime only) | ₹1,50,000 |
| Health insurance, section 80D (old regime only) | ₹25,000 |
| NPS extra, section 80CCD(1B) (old regime only) | ₹0 |
| Home loan interest (old regime only) | ₹0 |
| HRA exemption for the year (old regime only) | ₹0 |
| Other deductions (old regime only) | ₹0 |
You get
| Tax under the new regime | ₹97,500 |
|---|---|
| Tax under the old regime | ₹2,02,800 |
| Lower tax | New regime by ₹1,05,300 |
| Average rate: new, old | 6.5%, 13.5% |
| Monthly income after tax: new, old | ₹1,16,875, ₹1,08,100 |
Example 2
An income of ₹12,75,000 under the new regime, where the rebate brings tax to zero.
You enter
| Gross annual income | ₹12,75,000 |
|---|---|
| Do you earn a salary or pension? | Yes (standard deduction applies) |
| Your age (old regime slabs) | Below 60 |
| Section 80C investments (old regime only) | ₹0 |
| Health insurance, section 80D (old regime only) | ₹0 |
| NPS extra, section 80CCD(1B) (old regime only) | ₹0 |
| Home loan interest (old regime only) | ₹0 |
| HRA exemption for the year (old regime only) | ₹0 |
| Other deductions (old regime only) | ₹0 |
You get
| Tax under the new regime | ₹0 |
|---|---|
| Tax under the old regime | ₹1,87,200 |
| Lower tax | New regime by ₹1,87,200 |
| Average rate: new, old | 0%, 14.7% |
| Monthly income after tax: new, old | ₹1,06,250, ₹90,650 |
Example 3
A senior citizen with ₹8,00,000 income and no deductions.
You enter
| Gross annual income | ₹8,00,000 |
|---|---|
| Do you earn a salary or pension? | Yes (standard deduction applies) |
| Your age (old regime slabs) | 60 to 79 (senior) |
| Section 80C investments (old regime only) | ₹0 |
| Health insurance, section 80D (old regime only) | ₹0 |
| NPS extra, section 80CCD(1B) (old regime only) | ₹0 |
| Home loan interest (old regime only) | ₹0 |
| HRA exemption for the year (old regime only) | ₹0 |
| Other deductions (old regime only) | ₹0 |
You get
| Tax under the new regime | ₹0 |
|---|---|
| Tax under the old regime | ₹62,400 |
| Lower tax | New regime by ₹62,400 |
| Average rate: new, old | 0%, 7.8% |
| Monthly income after tax: new, old | ₹66,667, ₹61,467 |
How it works
The new regime has lower rates and almost no deductions; the old regime has higher rates and many deductions. Which wins depends on how much you can legitimately deduct. With few deductions the new regime is usually lower.
The calculator applies the standard deduction, the section 87A rebate (so tax is nil up to the rebate limit under each regime), marginal relief just above the new-regime limit, surcharge for very high incomes and 4% cess. It does not model capital gains, special-rate income, employer NPS, surcharge marginal relief or other deductions, so treat the answer as an estimate and confirm with a tax professional or the official calculator.
Rates used (FY 2026-27 (assessment year 2027-28))
New regime
| Income slice | Rate |
|---|---|
| ₹0 to ₹4,00,000 | 0% |
| ₹4,00,000 to ₹8,00,000 | 5% |
| ₹8,00,000 to ₹12,00,000 | 10% |
| ₹12,00,000 to ₹16,00,000 | 15% |
| ₹16,00,000 to ₹20,00,000 | 20% |
| ₹20,00,000 to ₹24,00,000 | 25% |
| above ₹24,00,000 | 30% |
Standard deduction ₹75,000 (salary or pension). Rebate under section 87A: up to ₹60,000 when taxable income is up to ₹12,00,000, with marginal relief just above. Cess 4%.
Old regime, age Below 60
| Income slice | Rate |
|---|---|
| ₹0 to ₹2,50,000 | 0% |
| ₹2,50,000 to ₹5,00,000 | 5% |
| ₹5,00,000 to ₹10,00,000 | 20% |
| above ₹10,00,000 | 30% |
Old regime, age 60 to 79
| Income slice | Rate |
|---|---|
| ₹0 to ₹3,00,000 | 0% |
| ₹3,00,000 to ₹5,00,000 | 5% |
| ₹5,00,000 to ₹10,00,000 | 20% |
| above ₹10,00,000 | 30% |
Old regime, age 80 or more
| Income slice | Rate |
|---|---|
| ₹0 to ₹5,00,000 | 0% |
| ₹5,00,000 to ₹10,00,000 | 20% |
| above ₹10,00,000 | 30% |
Standard deduction ₹50,000. Rebate: up to ₹12,500 when taxable income is up to ₹5,00,000. Limits applied: 80C ₹1,50,000, NPS extra ₹50,000, home loan interest ₹2,00,000. Cess 4%.
These figures were checked against published summaries after the 2026 Union Budget, which left the structure unchanged. They are not an official source: confirm on the Income Tax Department website before relying on them.
Formula
Tax = tax on slabs - rebate (+ surcharge) then + 4% cess. Taxable income = gross income - standard deduction - (old regime) deductions.
Common questions
Which regime is better?
Run both with your real deductions. The new regime wins when deductions are small.
Are these the latest rates?
The slabs shown below are the FY 2026-27 figures as published in summaries after Budget 2026. Tax law changes, so check the Income Tax Department's site for the current year before relying on this.
Does it file my return?
No, it only estimates the tax.
Why is my tax zero?
Under the new regime, taxable income up to the rebate limit pays no tax after the section 87A rebate.
Learn more
Read the lesson Tax basics and good records on pusaram.com for the ideas behind this calculator.
Calculators give estimates for learning and planning. They are not financial, tax, legal or medical advice, and results depend entirely on the numbers you enter. Check rates, limits and rules with an official source or a qualified professional before acting.