Old vs New Tax Regime Calculator (FY 2026-27)
Find your ideal tax structure under the latest rules. Fill in your gross income, rent details, and planned investments like PPF, NPS, or Home Loan interest to compare your tax liabilities side-by-side.
Salary & Deductions
Input your income details & tax savings items
Old Regime Deductions & Exemptions
Choose the New Tax Regime
You will save ₹1,11,800 annually on your income tax liability by choosing this regime.
Detailed Side-by-Side Math
Check how final liabilities are derived
| Parameter | Old Regime | New Regime |
|---|---|---|
| Gross Income | ₹12,00,000 | ₹12,00,000 |
| Standard Deduction | -₹50,000 | -₹75,000 |
| Investment Exemptions | -₹1,75,000 | ₹0 (Not Allowed) |
| Net Taxable Income | ₹9,75,000 | ₹11,25,000 |
| Calculated Slab Tax | ₹1,07,500 | ₹52,500 |
| Section 87A Rebate | -₹0 | -₹52,500 |
| Health & Cess (4%) | ₹4,300 | ₹0 |
| Total Income Tax | ₹1,11,800 | ₹0 |
Understanding Old vs New Tax Regime in India (FY 2026-27)
Income tax filing in India has undergone a major paradigm shift. Taxpayers can now choose between two distinct tax frameworks: the Old Tax Regime and the New Tax Regime. Under the Old Tax Regime, taxpayers benefit from a traditional approach built on deductions and exemptions. By making smart tax-saving investments in government instruments, paying medical insurance, or serving a home loan, you can reduce your net taxable income significantly.
On the other hand, the New Tax Regime is designed to simplify tax filing by offering significantly lower slab rates, but with a major catch: you must forfeit almost all popular tax exemptions and deductions. The union budget carries over the simplified slab structure to the current Financial Year 2026-27 (Assessment Year 2027-28), maintaining the New Regime as the default tax system. This means if you do not actively declare or submit a choice to your employer, your tax deduction at source (TDS) will be calculated according to the New Regime rules.
Choosing between the two regimes requires analyzing your income level, lifestyle expenses, rent commitments, and saving preferences. A simple error in choice can result in thousands of rupees of extra tax payments. This comprehensive guide helps you understand the differences, compare slab rates, and identify the break-even points.
How the Tax Regime Calculator Works
Our interactive calculator takes your Gross Annual Income and applies the rules of both tax structures side-by-side to recommend the option that minimizes your tax liability.
- Step 1: Gross Income Input: You enter your total annual CTC or salary before deductions.
- Step 2: Old Regime Deductions: The calculator applies the statutory ₹50,000 standard deduction, and lets you key in Section 80C investments, HRA tax exemption, Section 80D medical premiums, NPS contributions, and home loan interest (Section 24b).
- Step 3: New Regime Calculations: The calculator automatically applies the higher standard deduction of ₹75,000 and calculates the slab-based tax. No other deductions are factored in.
- Step 4: Section 87A Rebate check: The system applies the rebate rules (net income up to ₹5 Lakhs under Old, and up to ₹12 Lakhs under New) and adds the 4% Health & Education Cess to display the exact payable amount.
Explanation of Input Fields
To get the most accurate result from our old vs new tax regime calculator, you should understand what each input field represents:
Tax Slabs Comparison for FY 2026-27 (AY 2027-28)
The slabs for FY 2026-27 remain unchanged from the previous year. Let\'s review the rates side-by-side in the table below:
New Tax Regime Slabs
| Income Range | Tax Rate |
|---|---|
| Up to ₹4,00,000 | Nil |
| ₹4,00,001 to ₹8,00,000 | 5% |
| ₹8,00,001 to ₹12,00,000 | 10% |
| ₹12,00,001 to ₹16,00,000 | 15% |
| ₹16,00,001 to ₹20,00,000 | 20% |
| ₹20,00,001 to ₹24,00,000 | 25% |
| Above ₹24,00,000 | 30% |
Old Tax Regime Slabs
| Income Range | Tax Rate |
|---|---|
| Up to ₹2,50,000 | Nil |
| ₹2,50,001 to ₹5,00,000 | 5% |
| ₹5,00,001 to ₹10,00,000 | 20% |
| Above ₹10,00,000 | 30% |
- In both regimes, a flat 4% Health & Education Cess is levied on the total tax calculated.
- Surcharge rates are applicable for high earners (taxable income exceeding ₹50 Lakhs). In the New regime, the maximum surcharge rate is capped at 25% (for incomes > ₹5 Crores), whereas in the Old regime, it is 37%.
Key Comparison Parameters
| Feature | Old Tax Regime | New Tax Regime |
|---|---|---|
| Standard Deduction | ₹50,000 | ₹75,000 |
| Section 87A Rebate Limit | Income up to ₹5,00,000 (Max rebate ₹12,500) | Income up to ₹12,00,000 (Max rebate ₹60,000) |
| Sec 80C Deductions | Allowed up to ₹1.5 Lakhs | Not Allowed |
| HRA Exemption | Allowed (based on rent details) | Not Allowed |
| Home Loan Interest (Self-occupied) | Allowed up to ₹2 Lakhs | Not Allowed |
| NPS (Sec 80CCD(1B)) | Allowed up to ₹50,000 | Not Allowed |
Regime Benefits
Benefits of Old Tax Regime
- Encourages long-term structured savings in schemes like PPF, NPS, EPF, and ELSS.
- Highly beneficial for individuals paying heavy rents in metro cities (via HRA exemption).
- Offers huge tax relief for home buyers paying interest on a housing loan under Section 24b.
- Supports medical security savings by allowing deductions for healthcare premium policies (Section 80D).
Benefits of New Tax Regime
- Zero tax liability on gross incomes up to ₹12.75 Lakhs due to high Section 87A rebate.
- Simple to file; no need to track rent receipts, investment proofs, or insurance declarations.
- Provides higher disposable cash in hand, allowing individuals to invest in equity, crypto, or other assets freely.
- Lower basic slab tax rates reduce tax burden for individuals with little to no investments.
Detailed Example Calculations (Case Studies)
Let\'s analyze how both tax regimes perform for different salary levels. Assume standard deductions of ₹1,50,000 under 80C and ₹25,000 under 80D for the Old Regime.
Case 1: Gross Salary of ₹5,00,000 (₹5 LPA)
Calculations for entry-level professionals
- Gross Income: ₹5,00,000
- Deduction (SD): ₹50,000
- Net Taxable Income: ₹4,50,000
- Slab Tax: ₹10,000 (5% of 2L)
- Rebate (87A): -₹10,000
- Total Tax Payable: ₹0
- Gross Income: ₹5,00,000
- Deduction (SD): ₹75,000
- Net Taxable Income: ₹4,25,000
- Slab Tax: ₹1,250 (5% of 25k)
- Rebate (87A): -₹1,250
- Total Tax Payable: ₹0
Verdict: Both regimes result in ₹0 tax liability.
Case 2: Gross Salary of ₹10,00,000 (₹10 LPA)
Calculations for mid-level professionals
- Gross Income: ₹10,00,000
- Deduction (SD+80C+80D): ₹2,25,000
- Net Taxable Income: ₹7,75,000
- Slab Tax: ₹67,500
- 4% Cess: ₹2,700
- Total Tax Payable: ₹70,200
- Gross Income: ₹10,00,000
- Deduction (SD): ₹75,000
- Net Taxable Income: ₹9,25,000
- Slab Tax: ₹32,500 (since income is under ₹12 Lakhs)
- Rebate (87A): -₹32,500
- Total Tax Payable: ₹0
Verdict: New Regime wins by ₹70,200! The New Regime rebate for incomes under ₹12 Lakhs makes it incredibly powerful.
Case 3: Gross Salary of ₹15,00,000 (₹15 LPA)
Calculations for senior professionals
- Gross Income: ₹15,00,000
- Deductions (SD+80C+80D): ₹2,25,000
- Net Taxable Income: ₹12,75,000
- Slab Tax: ₹1,95,000
- 4% Cess: ₹7,800
- Total Tax Payable: ₹2,02,800
- Gross Income: ₹15,00,000
- Deduction (SD): ₹75,000
- Net Taxable Income: ₹14,25,000
- Slab Tax: ₹93,750
- 4% Cess: ₹3,750
- Total Tax Payable: ₹97,500
Verdict: New Regime saves you ₹1,05,300. To match this in the Old Regime, you would need deductions exceeding ₹4,08,333.
Case 4: Gross Salary of ₹20,00,000 (₹20 LPA)
Calculations for leadership roles
- Gross Income: ₹20,00,000
- Deductions (SD+80C+80D+NPS): ₹3,00,000
- Net Taxable Income: ₹17,00,000
- Slab Tax: ₹3,22,500
- 4% Cess: ₹12,900
- Total Tax Payable: ₹3,35,400
- Gross Income: ₹20,00,000
- Deduction (SD): ₹75,000
- Net Taxable Income: ₹19,25,000
- Slab Tax: ₹1,85,000
- 4% Cess: ₹7,400
- Total Tax Payable: ₹1,92,400
Verdict: New Regime saves ₹1,43,000. Under the Old Regime, you would need deductions of at least ₹4,75,000 to justify sticking to it.
Who Should Choose Which Tax Regime?
Finding the right tax structure depends largely on how much of your salary you commit to tax-saving investments or key exemptions. Below is a helpful framework to guide your choice.
- You pay high monthly rent in cities like Mumbai or Bangalore and claim a solid HRA exemption.
- You are paying interest on a home loan for a self-occupied property (up to ₹2 Lakhs).
- Your total tax-saving deductions (Section 80C, 80D, 24b, NPS, HRA) exceed ₹3.75 Lakhs to ₹4.25 Lakhs.
- You prefer forced savings through PPF, NPS, or ELSS to secure your financial future.
- Your gross income is under ₹12.75 Lakhs (standard deduction + rebate renders your tax ₹0).
- You do not want to lock your money in long-term lock-in funds like PPF or ELSS.
- You do not pay rent or own a home loan, meaning you have minimal deductions.
- You want a simple tax filing experience without the hassle of collecting and submitting proofs to HR.
Popular Deductions Available Under the Old Regime
Here is a checklist of the main deductions you can claim to reduce tax liability in the Old Regime:
Common Mistakes Taxpayers Make
Taxpayers often lose money due to negligence or a lack of understanding of tax rules. Avoid these typical pitfalls:
- Assuming the New Regime is always better: Many believe that since New Regime rates are lower, it is always the cheapest option. However, if you pay significant rent or serve a home loan, the Old Regime could save you far more.
- Forgetting default regime provisions: The New Tax Regime is the default regime. If you fail to choose a regime with your employer at the beginning of the year, TDS will automatically be deducted under the New Regime, reducing your flexibility later unless you file returns carefully.
- Double-counting deductions: Attempting to claim Home Loan Principal under Section 80C and Home Loan Interest under Section 24b without proper proofs or documents is a major compliance risk that can lead to IT notices.
- Misunderstanding Section 87A rebate limits: Rebate under 87A in the New Regime makes income up to ₹12 Lakhs tax-free, but if your taxable income crosses ₹12 Lakhs by even ₹10, your entire slab tax of ₹90,000+ becomes payable! Make sure to compute your net income accurately.
Conclusion
There is no single "best" regime that fits everyone. The choice depends entirely on your personal financial structure. We recommend using our Old vs New Tax Regime Calculator (FY 2026-27) to key in your exact figures, perform side-by-side math, and export a PDF report. Reviewing this before declaring investments to your company HR ensures that you choose the most cash-flow-friendly structure for your salary.
Frequently Asked Questions (FY 2026-27)
Got doubts? Find quick, simple answers to the most common queries about old and new income tax regimes.
For the Financial Year 2026-27 (Assessment Year 2027-28), the standard deduction is ₹50,000 under the Old Tax Regime and ₹75,000 under the New Tax Regime. Salaried employees and pensioners receive this benefit automatically as a flat reduction from their gross salary before tax calculations begin.
Yes, if you are a salaried individual without any business or professional income. You can choose either regime at the time of declaring tax investments to your employer, and you can change your mind and switch when filing your Income Tax Return (ITR). However, taxpayers with business or professional income can only switch back to the Old Regime once in their lifetime after opting out.
No, the Section 80C deduction (which covers PPF, ELSS, LIC premium, EPF, school fees, and home loan principal up to ₹1.5 lakh) is completely unavailable under the New Tax Regime. The New regime offers lower tax slabs but removes almost all deductions and exemptions.
Under the Old Tax Regime, you get a Section 87A rebate of up to ₹12,500 if your net taxable income does not exceed ₹5,00,000, effectively making it tax-free. Under the New Tax Regime, you get a rebate of up to ₹60,000 if your taxable income does not exceed ₹12,00,000. Combined with the standard deduction of ₹75,000, individuals earning up to ₹12,75,000 can pay zero tax under the New Regime.
No, HRA tax exemption under Section 10(13A) is not allowed under the New Tax Regime. If you want to claim tax-free rent, you must opt for the Old Tax Regime and provide rent receipts and the landlord's PAN details to your employer.
Interest paid on a home loan for a self-occupied property (up to ₹2,00,000) is only allowed as a deduction under the Old Tax Regime. The New Tax Regime does not allow any deduction for interest on self-occupied properties. However, interest paid on let-out (rented) properties can be deducted under both regimes up to the rental income, but losses under the head "Income from House Property" cannot be set off against salary or carried forward in the New Regime.
Self-contributions to NPS under Section 80CCD(1B) up to ₹50,000 are only deductible under the Old Tax Regime. However, employer contributions to your NPS account under Section 80CCD(2) (up to 10% of basic salary + DA for private sector, 14% for government employees) are fully deductible under both the Old and New Tax Regimes.
The break-even deduction point depends on your gross income. For example, if your gross salary is ₹10 Lakhs, the Old Regime becomes beneficial if your total deductions (80C, HRA, 80D, etc.) exceed ₹2,62,500. For a salary of ₹15 Lakhs, you need deductions of at least ₹3,75,000. For salaries above ₹20 Lakhs, you typically need deductions exceeding ₹4,25,000 to justify opting for the Old Regime.
No, both Leave Travel Allowance (LTA) under Section 10(5) and Medical Insurance premium deductions under Section 80D (up to ₹75,000 covering self, family, and senior citizen parents) are completely blocked under the New Tax Regime. They can only be claimed in the Old Tax Regime.
If you fail to choose a regime, your employer will automatically deduct TDS under the New Tax Regime by default, as it is now the default tax regime in India. However, you can still switch to the Old Tax Regime at the time of filing your ITR (Income Tax Return) and claim a refund for any excess tax deducted.