Calculating your income tax manually can feel confusing and time-consuming. An online income tax calculator takes away this complexity by giving you an instant estimate of your tax liability based on your income, deductions, and the applicable tax slabs.

If you want to understand how the new tax regime income tax calculator works, how to use it, and how it helps you plan better, here’s everything you need to know.

What is an Income Tax Calculator?

An income tax calculator is an online tool that helps you estimate your tax liability based on:

• Your income
  
• Your tax slab
  
• Deductions applicable to you
  

Individuals who fall under the taxable income bracket must pay a portion of their net annual income as tax. You can choose between the old tax regime (with deductions) and the new tax regime (with lower tax rates).

Income tax may be paid through TDS on salary or directly via the Income Tax portal managed by the CBDT. Online tax calculators make it easier to understand your dues, including income generated from sources like rent or interest.

The Paisaseekho Income Tax Calculator is updated as per the Union Budget 2025 for FY 2025–26 and AY 2026–27.

Budget 2025 Updates on Income Tax

The Union Budget 2025 introduced several major changes. Key highlights include:

• Income tax rebate increased to ₹60,000 (earlier ₹25,000).
  → No tax liability on income up to ₹12 lakh under the new regime.
  
• TDS limit on rent increased to ₹50,000/month for FY 2025–26.
  
• Senior citizen deduction on interest increased from ₹50,000 to ₹1,00,000.
  
• TCS threshold on foreign remittances (LRS) increased to ₹10 lakh (earlier ₹7 lakh).
  TCS removed for education loans from specified financial institutions.
  

Revised Income Tax Slabs (New Regime) – FY 2025–26 / AY 2026–27

How to Use Paisaseekho’s Online Income Tax Calculator?

Follow these steps to calculate your tax quickly:

1. Select the Assessment Year (e.g., choose AY 2026–27 for FY 2025–26).
   
2. Enter your age.
   
3. Under “Income”, provide:
   
   • Gross salary (monthly or annual)
     
   • Income from other sources (interest, rental income, etc.)
     
4. Enter the deductions you are eligible for:
   
   • Sections 80C, 80CCD(1B), 80D, 80G, 80TTA/80TTB, 80GG, etc.
     
   • Interest on education loan under 80E
     
5. Provide HRA exemption details if applicable (basic salary, DA, HRA, rent paid).
   
6. Select whether you live in a metro city.
   
7. Click “Calculate” to view your estimated tax liability.
   

The calculator works for both old and new tax regimes.

How to Calculate Income Tax on Salary?

Here’s the simplified process:

1. Calculate your gross salary
   Includes basic salary, allowances, bonus, and taxable components.
   
2. Subtract eligible exemptions (Old Regime only)
   Examples:
   
   • House Rent Allowance (HRA)
     
   • Leave Travel Allowance (LTA)
     
   • Standard Deduction
     
3. Apply deductions under the Income Tax Act (Old Regime)
   
   • Section 80C (PF, PPF, life insurance, etc.)
     
   • Section 80D (health insurance)
     
   • Section 24b (home loan interest)
     
4. Arrive at your taxable income
   Gross salary – exemptions – deductions.
   
5. Apply the applicable tax slabs
   Calculate tax for each slab separately.
   
6. Add up your total tax liability
   
7. Apply rebate (if eligible)
   Section 87A rebate under the new regime applies up to ₹12 lakh income.
   
8. Add 4% Health & Education Cess
   

This gives your final tax payable.

Example: Income Tax Calculation Under the New Regime

For a salary of ₹18,00,000/year:

Tax Slab Breakdown

Benefits of an Income Tax Calculator

1. Accuracy

Removes human error and gives reliable estimates instantly.

2. Speed & Convenience

Calculate anytime, anywhere, no manual formulas needed.

3. User-Friendly

Just enter your details and get your tax estimate within seconds.

4. Better Expense Management

Knowing your tax liability helps you allocate money more efficiently.

5. Improved Financial Planning

Find how much you can save by investing in PF, ELSS, PPF, FDs, and other tax-saving tools.

6. Data Privacy

Online calculators protect sensitive financial details from misuse, unlike paper-based notes.

Using an income tax calculator, especially with the updated new tax regime calculator, helps you understand your tax obligations, avoid surprises, and plan smarter for the financial year.

FAQs

1. How can I calculate my income tax?

You can calculate income tax manually using tax slabs, deductions, exemptions, and cess. The easier method is using the Paisaseekho Income Tax Calculator, which does the entire calculation instantly.

2. How much tax will be deducted from my salary?

Tax deducted from your salary depends on your taxable income, tax regime, deductions, and exemptions. Your employer deducts TDS based on these inputs.

3. Does everyone have to file income tax returns?

Anyone with taxable income above the basic exemption limit must file ITR. Even those below the limit often file returns to claim TDS refunds or maintain financial records.

4. Does the income tax calculator also calculate TDS?

Yes. The calculator estimates the total tax liability, helping you understand how much TDS your employer may deduct.

5. Can I use the Income Tax Calculator if I have multiple income sources?

Yes. You can enter salary, rental income, interest income, and other earnings to calculate your combined tax liability accurately.