How to Pay Income Tax in India: Tax Slabs, Calculation, and Online ITR Filing Guide

Whether you are a salaried employee, a business owner, a freelancer, or an online earner, understanding income tax is important. In India, income tax depends on your taxable income, the type of income you earn, and the tax regime you choose. This guide explains the tax slabs, tax calculation, and online income tax return filing process in simple English.

1. What Is Income Tax?

Income tax is a tax imposed by the government on taxable income earned by individuals and other taxpayers. Your income may come from salary, business, freelancing, house rent, bank interest, or online activities. Different types of income may have different tax rules.

2. Income Tax Slabs for FY 2026–27

Under the new tax regime, the ordinary income tax slabs for FY 2026–27 are:

• Up to ₹4 lakh: Nil
• ₹4 lakh to ₹8 lakh: 5%
• ₹8 lakh to ₹12 lakh: 10%
• ₹12 lakh to ₹16 lakh: 15%
• ₹16 lakh to ₹20 lakh: 20%
• ₹20 lakh to ₹24 lakh: 25%
• Above ₹24 lakh: 30%

These rates apply to different portions of taxable income. They do not mean that your entire income is taxed at the highest rate you reach.

3. How Much Tax Is Payable on ₹12 Lakh Income?

Under the new tax regime, an eligible resident individual may receive a rebate under Section 87A of up to ₹60,000 on ordinary taxable income of ₹12 lakh. Therefore, the income tax payable may be zero if the individual qualifies for the full rebate and has no income taxed at special rates.

Eligible salaried employees may also benefit from a standard deduction of ₹75,000, potentially making salary income up to ₹12.75 lakh tax-free under these conditions.

4. How Is Income Tax Calculated?

Suppose your taxable income is ₹15 lakh under the new tax regime. A simplified calculation is:

• First ₹4 lakh: Nil tax
• Next ₹4 lakh at 5%: ₹20,000
• Next ₹4 lakh at 10%: ₹40,000
• Remaining ₹3 lakh at 15%: ₹45,000

Total income tax: ₹1,05,000. A 4% Health and Education Cess would add ₹4,200, making the total ₹1,09,200 before considering any applicable relief, credits, or special-rate income.

5. How to File an Income Tax Return Online

1. Visit the official website: Income Tax e-Filing Portal.
2. Log in using your PAN and the required credentials.
3. Open the e-File section and select Income Tax Return.
4. Choose the correct assessment year and applicable ITR form.
5. Review your salary, business income, bank interest, and other income details.
6. Check your tax regime, TDS, and tax calculation carefully.
7. Submit the return and complete e-verification.

6. Documents Required for ITR Filing

Keep your PAN, bank account details, Form 16 if applicable, bank interest statements, Form 26AS, Annual Information Statement (AIS), and records of your income and eligible deductions ready before filing.

7. Does Everyone Need to Pay Income Tax?

Not everyone who earns money has to pay income tax. Your tax liability depends on taxable income, applicable rebates, the chosen tax regime, and the nature of your income. In some circumstances, filing an ITR may be compulsory even when no tax is payable.

8. Smart Tax Planning Tips

• Keep accurate records of your income and expenses throughout the year.
• Compare the old and new tax regimes before making your choice.
• Review Form 26AS and AIS to identify any reporting differences.
• File your ITR before the applicable deadline.
• Use the official income tax portal or consult a qualified tax professional if your situation is complicated.

Important Note: This article is for general educational purposes only. Actual tax liability may vary depending on your income type, eligibility for rebates, deductions, and the tax laws applicable to your circumstances. Verify the latest rules on the official Income Tax Department website.

9. What Is TDS and How Does It Work?

TDS stands for Tax Deducted at Source. It is a system in which tax is deducted from certain payments before the money reaches the recipient. TDS may apply to salary, professional fees, interest, rent, and other payments depending on the applicable income tax rules.

For example, if your employer deducts TDS from your monthly salary, the deducted amount is deposited with the government on your behalf. You can check your TDS details through Form 26AS and the Annual Information Statement (AIS) available on the Income Tax Department portal.

If excess TDS has been deducted, you may be eligible to claim a refund by filing your income tax return.

10. What Is Advance Tax?

Advance tax is income tax paid in installments during the financial year instead of paying the entire amount at the end. It generally applies when your estimated tax liability, after considering TDS and other eligible credits, is ₹10,000 or more.

Advance tax is commonly relevant for freelancers, business owners, professionals, investors, and individuals earning income from sources where sufficient TDS is not deducted.

Eligible taxpayers should calculate their estimated annual income and pay advance tax according to the applicable installment deadlines. Failure to pay advance tax when required may result in interest under the Income Tax Act.

11. How Can You Save Income Tax Legally?

Tax planning helps you manage your income and reduce unnecessary tax expenses. The available benefits depend on your selected tax regime and personal financial situation.

• Compare the old and new tax regimes before making your final decision.
• Check whether deductions and exemptions are available under your chosen regime.
• Keep proper records of eligible investments and expenses.
• Review your salary structure and tax deductions regularly.
• Use the official income tax calculator to estimate your annual tax liability.

Remember that tax-saving investments should match your financial goals. Do not invest money only to receive a tax benefit without understanding the investment conditions.

12. Common Income Tax Filing Mistakes to Avoid

Many taxpayers make mistakes while filing their income tax returns. These errors can cause delays, incorrect tax calculations, or refund problems.

• Entering an incorrect PAN or bank account number.
• Forgetting to report bank interest or other income.
• Choosing the wrong ITR form.
• Claiming deductions without proper supporting documents.
• Ignoring differences between AIS, Form 26AS, and reported income.
• Submitting the return without completing e-verification.

Always review your return carefully before submitting it. Correct information helps prevent unnecessary notices and complications.

13. How to Check Your Income Tax Refund

If you have paid more tax than your actual tax liability, you may be eligible for an income tax refund. After filing your return, complete the required verification process.

You can check your refund status by logging in to the official Income Tax e-Filing portal and opening the relevant return or refund status section.

Make sure your bank account is correctly entered and eligible for refund processing. If your refund is delayed, check for pending verification, bank account issues, or any communication from the Income Tax Department.

Final Words on Income Tax Management

Understanding TDS, advance tax, tax planning, and ITR filing can help you manage your financial responsibilities more effectively. Keep your income records updated, check official tax information regularly, and submit your return within the applicable deadline.

For accurate tax calculations and personalized advice, visit the official Income Tax Department website or consult a qualified tax professional.