Old vs New Tax Regime Calculator
Tax under both regimes for 2026-27 and the break-even deductions the old regime needs at your income, with a chart from ₹5 lakh to ₹50 lakh.
A ₹25 lakh salary pays ₹3,19,800 of income tax in tax year 2026-27 under the new regime, or ₹26,650 a month. At this level both regimes tax each extra rupee at 30%, so the deductions the old regime needs stop rising. The line is ₹8,00,000, and it is the same at ₹25 lakh, ₹30 lakh or ₹50 lakh.
By Bulan Sarkar · Updated
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Rates checked on 6 October 2026 against the CBDT Tax Reference Tables for the Income-tax Act, 2025 on incometaxindia.gov.in (Tax Rates page, last reviewed 28 September 2026): new-regime slabs under section 202, old-regime slabs, and 4% health and education cess. The ₹3,19,800 new-regime figure was cross-checked by hand and against two public calculator pages on 9 October 2026.
Under the new regime a ₹25 lakh salary pays ₹3,19,800 in tax for tax year 2026-27, or ₹26,650 a month. After the ₹75,000 standard deduction, ₹24,25,000 is taxable; slab tax on that is ₹3,07,500 and 4% cess adds ₹12,300. The old regime matches it when your deductions reach ₹8,00,000 on top of its ₹50,000 standard deduction. That line stays the same for every salary from ₹24.75 lakh to ₹50 lakh, because both regimes charge 30% on each extra rupee there. The usual deductions without rent stop at ₹4,27,500, so the old regime needs at least ₹3,72,500 of HRA exemption on top.
The last ₹25,000 of your salary is already in the 30% slab. From here on, every extra ₹1,000 of salary or other income costs ₹312 in tax with cess, in either regime.
Above ₹24 lakh of taxable income, the new regime's slab tax equals 30% of taxable income minus ₹4,20,000. Above ₹10 lakh, the old regime's equals 30% of taxable income minus ₹1,87,500. The old regime also gives a smaller standard deduction (₹50,000 against ₹75,000), which costs ₹7,500 more. Put together, the old regime starts ₹2,40,000 behind, and each rupee of deduction saves 30 paise. ₹2,40,000 ÷ 30% = ₹8,00,000, and no salary figure appears in that sum. So the line stays fixed until the surcharge starts above ₹50 lakh.
| Salary | New-regime tax | Deductions the old regime needs |
|---|---|---|
| ₹15 lakh | ₹97,500 | ₹5,43,750 |
| ₹20 lakh | ₹1,92,400 | ₹7,08,334 |
| ₹22 lakh | ₹2,40,500 | ₹7,54,167 |
| ₹24 lakh | ₹2,92,500 | ₹7,87,500 |
| ₹24.75 lakh | ₹3,12,000 | ₹8,00,000 |
| ₹25 lakh | ₹3,19,800 | ₹8,00,000 |
| ₹30 lakh | ₹4,75,800 | ₹8,00,000 |
| ₹40 lakh | ₹7,87,800 | ₹8,00,000 |
| ₹50 lakh | ₹10,99,800 | ₹8,00,000 |
Deductions the old regime needs, ₹15 lakh to ₹50 lakh salary
| Deductions you claim (on top of the ₹50,000 standard deduction) | Old-regime tax | Against ₹3,19,800 new |
|---|---|---|
| None | ₹5,69,400 | ₹2,49,600 more |
| s.123 ₹1.5 lakh, s.126 ₹25,000, own NPS ₹50,000, professional tax ₹2,500 (₹2,27,500) | ₹4,98,420 | ₹1,78,620 more |
| The same plus ₹2 lakh home loan interest (₹4,27,500) | ₹4,36,020 | ₹1,16,220 more |
| Row 3 with the full ₹1 lakh of health insurance for you and senior-citizen parents (₹5,02,500) | ₹4,12,620 | ₹92,820 more |
Each ₹1 lakh of deduction below the line still leaves the old regime ₹31,200 behind. Without HRA, someone who claims everything in row 4 is ₹2,97,500 short of ₹8 lakh.
HRA exemption is the smallest of three amounts: the HRA your employer pays, your rent minus 10% of basic plus DA, and 50% of basic plus DA (40% outside Delhi, Mumbai, Kolkata, Chennai, Bengaluru, Hyderabad, Pune and Ahmedabad).
| Other deductions you already claim | HRA exemption needed | Basic + DA needed, 50% city | Basic + DA needed, other city |
|---|---|---|---|
| ₹2,27,500 (renter, no home loan) | ₹5,72,500 | ₹11,45,000 (46% of salary) | ₹14,31,250 (57%) |
| ₹4,27,500 (home loan on a house elsewhere) | ₹3,72,500 | ₹7,45,000 (30%) | ₹9,31,250 (37%) |
The rent has to clear the need plus 10% of basic. A renter in row 1 with an ₹11.45 lakh basic would pay at least ₹6,87,000 a year, about ₹57,250 a month. In row 2 with a ₹10 lakh basic, ₹4,72,500 a year, about ₹39,400 a month, is enough.
A ₹1 lakh raise costs ₹31,200 in tax under both regimes. So at this level a raise does not change which regime gives the lower figure; only the deductions do. That is different from ₹15 or ₹20 lakh, where a raise pushes the line up.
Employer NPS works differently. If your salary structure includes an employer contribution, the new regime deducts up to 14% of basic plus DA under section 124(1) (old 80CCD(2)) and the old regime 10%. On a ₹10 lakh basic, ₹1,40,000 of employer NPS takes the new-regime tax to ₹2,82,100, which is ₹37,700 less. Because the old regime counts only ₹1,00,000 of it, its line rises to ₹8,20,834. Most NPS money stays locked until 60.
HRA allowance ₹6,25,000. The three limits are ₹6,25,000 received, ₹7,20,000 − ₹1,25,000 = ₹5,95,000, and 50% of basic = ₹6,25,000, so the exemption is ₹5,95,000. Add section 123 ₹1,50,000, own NPS ₹50,000, health insurance ₹25,000 and professional tax ₹2,500: deductions ₹8,22,500, which is ₹22,500 past the line.
Old regime: ₹25,00,000 − ₹50,000 − ₹8,22,500 = ₹16,27,500 taxable. Tax ₹1,12,500 + ₹1,88,250 = ₹3,00,750, plus cess = ₹3,12,780. That is ₹7,020 less than the new regime, which is ₹22,500 × 31.2%.
Gurugram is not one of the eight 50% cities, so the cap is 40% of basic, ₹4,00,000. The HRA allowance is also ₹4,00,000, and rent minus 10% of basic is ₹4,40,000, so the exemption is ₹4,00,000. With the ₹4,27,500 that includes ₹2 lakh of home loan interest, deductions come to ₹8,27,500.
Old regime: ₹16,22,500 taxable, tax ₹2,99,250 plus cess = ₹3,11,220, which is ₹8,580 less than the new regime. Moving to a cheaper flat would not change this until the rent fell below about ₹41,700 a month (₹5 lakh a year); below that, the second limit binds and the exemption shrinks.
Written by Bulan Sarkar, who checked the results by hand and against a second public calculator. Use it for planning; it isn't tax or investment advice.
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