Income Tax Slab Rates 2025-26 Explained Simply | New Regime vs Old Regime

Introduction

Understanding the Income Tax Slab Rates 2025-26 is one of the most important things every earning person in India needs to know. Yet most people never get a clear answer. Imagine this — it is the end of March and your employer sends you a message saying a certain amount has been deducted from your salary as income tax. You stare at the number and wonder — why this amount? Why not more or less? Who decided this? Can I reduce it?

These are questions that millions of Indians ask every single year, yet very few ever get a clear and simple answer. Most articles on income tax are either written for Chartered Accountants or are so full of technical terms that a regular person gives up reading after the second paragraph.

That stops here.

In this article, The Commerce Lab explains everything about the Income Tax Slab Rates 2025-26 in plain, simple English. No jargon. No confusion. Whether you are a Class 12 student studying taxation for your board exams, a fresh graduate who just received your first salary, or a parent trying to understand tax planning for your family — this guide is written for you.

By the end of this article, you will know exactly how much tax you need to pay, why India has two different tax regimes, which one saves you more money, and how to calculate your tax yourself with real solved examples.

Let us begin from the very basics.

What is Income Tax?

Income Tax is a tax that the Government of India collects from individuals and businesses on the income they earn during a financial year.

Think of it this way. Imagine the government is like the management of a large apartment complex called India. You live here, you use its roads, hospitals, schools, railways, and defence forces. In return for all these services, you contribute a small share of your annual income to the government. That contribution is called Income Tax.

This tax is governed by the Income Tax Act, 1961. From 1st April 2026 onwards, this is being replaced by the Income Tax Act, 2025, which simplifies many provisions while keeping the overall structure largely the same.

What is a Financial Year (FY) and Assessment Year (AY)?

Before reading about tax slabs, you must understand two very important terms that appear everywhere in taxation.

So when this article says “Income Tax Slab for FY 2025-26”, it means the income earned between 1st April 2025 and 31st March 2026, and the tax for this income must be filed by 31st July 2026.

What is an Income Tax Slab? Understanding the 2025-26 Structure

India follows a progressive tax system. This means the government does not charge the same tax rate on everyone. Instead, it divides income into ranges called slabs, and each slab carries its own tax rate.

The logic is simple and fair. A person earning Rs. 3 lakh per year and a person earning Rs. 30 lakh per year should not pay tax at the same rate. The one earning more can afford to contribute a higher percentage. The one earning less gets protection through lower rates or no tax at all.

Simple illustration:

A person earning Rs. 3 lakh per year pays zero tax. A person earning Rs. 10 lakh per year does not pay tax on the entire Rs. 10 lakh. Only the portion of income that falls in each slab is taxed at that slab’s rate. This makes the system very fair for people at every income level.

India Has Two Tax Regimes — The Most Important Thing to Understand

From FY 2020-21 onwards, the Government of India introduced a second method of calculating income tax. Today, every taxpayer in India has a choice between two systems, officially called regimes.

These are the New Tax Regime and the Old Tax Regime.

Think of it like two different mobile recharge plans offered by a telecom company. Plan A gives you a lower base price but no extra benefits like free OTT subscriptions or cashback. Plan B has a slightly higher price but gives you many additional benefits if you use them. If you actively use those benefits, Plan B saves you more money. If you do not, Plan A is cheaper and simpler.

The New Tax Regime works the same way as Plan A. Lower tax rates. No deductions. Simple calculations.

The Old Tax Regime works like Plan B. Slightly higher tax rates, but allows you to reduce your taxable income through investments and allowances like LIC, PPF, home loan interest, health insurance, and house rent — provided you actually make these investments.

From FY 2023-24 onwards, the New Tax Regime became the default system. This means if you do not specifically request the Old Regime while filing your return, the government automatically applies the New Regime to calculate your tax.

NEW TAX REGIME vs OLD TAX REGIME — Complete Side-by-Side Analysis

Section A — The Core Philosophy

The New Tax Regime was built for simplicity and immediate relief. The government wanted taxpayers to stop making forced investments just for the sake of saving tax. Instead of worrying about where to put your money every March, you pay a lower, flat tax rate and invest freely wherever you want.

The Old Tax Regime was built to encourage long-term financial discipline. By rewarding you with deductions when you invest in PPF, take a home loan, buy health insurance, or pay for your children’s education, the government was nudging citizens toward habits that build financial security. If you already have these habits, the Old Regime can be significantly more beneficial.

Section B — Slab Rate Comparison

NEW TAX REGIME — Income Tax Slab Rates 2025-26

Key highlight: The basic exemption starts at Rs. 4 lakh, which is higher than the Old Regime. And with the Section 87A rebate, income up to Rs. 12 lakh becomes completely tax-free. For salaried employees, the Rs. 75,000 standard deduction pushes this limit further to Rs. 12,75,000.

OLD TAX REGIME — Income Tax Slab Rates 2025-26

The Old Regime has different slab tables based on your age.

For Individuals Below 60 Years of Age:

Rebate: Section 87A gives a rebate of Rs. 12,500 if taxable income is up to Rs. 5 lakh, making the effective tax zero. Standard Deduction: Rs. 50,000 for salaried individuals.

For Senior Citizens (Age 60 to 80 Years):

Senior citizens receive a higher basic exemption of Rs. 3 lakh instead of Rs. 2.5 lakh.

For Super Senior Citizens (Age Above 80 Years):

Super senior citizens enjoy an exemption limit of Rs. 5 lakh, meaning most of them pay no tax at all on their pension and interest income.

Important distinction: Under the New Tax Regime, there is absolutely no age-based benefit. The same slabs apply to a 25-year-old and an 85-year-old equally. The Old Regime, by contrast, specifically rewards senior and super senior citizens with higher exemption limits.

Section C — Deductions Available

This is where the character of the two regimes truly diverges.

Under the Old Tax Regime, you can reduce your taxable income by investing in or spending on approved categories. These are called deductions and exemptions.

Under the New Tax Regime, none of the above deductions are available to you. The only exception is the employer’s contribution to NPS under Section 80CCD(2), which continues to be allowed.

Section D — The Section 87A Rebate Comparison

The New Regime’s rebate is five times larger and applies to a much wider income range. This is one of the strongest advantages of the New Regime for middle-income earners.

Section E — Full Feature Comparison Table

Section F — How to Decide Which Regime is Right for You

The New Tax Regime is the better choice when your annual income is Rs. 12 lakh or less and you want to pay zero tax without any investment planning. It is also better when you are just starting your career and do not yet have large investments or a home loan. It suits those who prefer a straightforward tax calculation without maintaining records of every investment made during the year.

The Old Tax Regime is the better choice when you already invest Rs. 1.5 lakh or more under Section 80C every year through PPF, LIC, or ELSS. It is also better when you are paying a home loan with significant interest, when you live in a rented house and claim HRA, when you pay health insurance premiums for yourself and your parents, or when you are a senior citizen with a higher basic exemption need.

The most reliable way to decide is to calculate your tax liability under both regimes using the same income figure and choose the one that results in a lower tax. You can use the free calculator available at incometax.gov.in.

What is Cess and Surcharge?

After calculating your basic income tax, two additional charges may apply.

Health and Education Cess — 4%

This is charged on the total tax amount, not on your income. Every taxpayer under both old and new regimes must pay this without exception.

Example: If your income tax comes to Rs. 10,000, then cess = Rs. 10,000 multiplied by 4% = Rs. 400. Your total tax payable becomes Rs. 10,400.

This amount is used by the central government specifically for health and education programs across the country.

Surcharge — Only for Very High Incomes

Surcharge is an additional charge levied on the tax amount when income exceeds Rs. 50 lakh. Most salaried individuals, students, and small business owners do not fall into this category.

How to Calculate Income Tax — Step-by-Step

Step 1: Calculate your Gross Income by adding salary, business income, rent income, capital gains, and any other source.

Step 2: Subtract the Standard Deduction. Rs. 75,000 under New Regime. Rs. 50,000 under Old Regime for salaried individuals.

Step 3 (Old Regime only): Subtract all eligible deductions such as 80C, 80D, home loan interest, HRA, and others.

Step 4: The amount remaining is your Taxable Income.

Step 5: Apply the slab rates from the relevant table to find your basic income tax.

Step 6: Subtract the Section 87A rebate if your income qualifies.

Step 7: Add 4% Health and Education Cess on the tax amount after rebate.

Step 8: Add Surcharge if your income exceeds Rs. 50 lakh.

Step 9: The final number is your Total Tax Payable for the year.

Solved Example 1 — New Tax Regime

Ravi is a salaried employee earning Rs. 12,75,000 per year. He chooses the New Tax Regime. How much tax does he pay?

Step 1 — Apply Standard Deduction Rs. 12,75,000 minus Rs. 75,000 = Rs. 12,00,000 Taxable Income

Step 2 — Apply New Regime Slab Rates

Step 3 — Apply Section 87A Rebate Taxable income is exactly Rs. 12 lakh. Full rebate of Rs. 60,000 applies. Tax after rebate = Rs. 60,000 minus Rs. 60,000 = Rs. 0

Step 4 — Add Cess Rs. 0 multiplied by 4% = Rs. 0

Final Result: Ravi pays zero income tax despite earning Rs. 12.75 lakh per year.

Solved Example 2 — New Tax Regime, Higher Income

Priya earns Rs. 18,00,000 per year and opts for the New Tax Regime.

Step 1 — Apply Standard Deduction Rs. 18,00,000 minus Rs. 75,000 = Rs. 17,25,000 Taxable Income

Step 2 — Apply New Regime Slab Rates

Step 3 — Section 87A Rebate Income exceeds Rs. 12 lakh, so no rebate applies.

Step 4 — Add 4% Cess Rs. 1,45,000 multiplied by 4% = Rs. 5,800

Final Result: Priya’s total income tax = Rs. 1,45,000 plus Rs. 5,800 = Rs. 1,50,800

Solved Example 3 — Old Tax Regime With Deductions

Arjun earns Rs. 10,00,000 per year. He invests Rs. 1,50,000 in PPF and LIC under Section 80C and chooses the Old Regime.

Step 1 — Apply Standard Deduction Rs. 10,00,000 minus Rs. 50,000 = Rs. 9,50,000

Step 2 — Apply Section 80C Deduction Rs. 9,50,000 minus Rs. 1,50,000 = Rs. 8,00,000 Taxable Income

Step 3 — Apply Old Regime Slab Rates

Step 4 — Add 4% Cess Rs. 72,500 multiplied by 4% = Rs. 2,900

Final Result: Arjun’s total income tax = Rs. 72,500 plus Rs. 2,900 = Rs. 75,400

Comparison check: If Arjun had chosen the New Tax Regime, his taxable income would have been Rs. 9,50,000 (no 80C benefit allowed), and his tax before cess would have been approximately Rs. 92,500. So by choosing the Old Regime, Arjun saved nearly Rs. 20,000 in tax. This clearly shows why the Old Regime benefits people who invest regularly.

When Do You Pay Zero Income Tax?

Under the New Tax Regime, your total income is Rs. 12,00,000 or less.

Under the New Tax Regime for salaried employees, your gross salary is Rs. 12,75,000 or less, because the Rs. 75,000 standard deduction brings the taxable income to Rs. 12 lakh and the Section 87A rebate makes the final tax zero.

Under the Old Tax Regime, your taxable income after all eligible deductions is Rs. 5,00,000 or less.

Under the Old Tax Regime for super senior citizens, income up to Rs. 5 lakh is already fully exempt.

Budget 2025 — Key Changes for FY 2025-26

The Union Budget 2025, presented by Finance Minister Nirmala Sitharaman, brought the following changes effective from 1st April 2025.

The basic exemption limit under the New Regime was raised from Rs. 3 lakh to Rs. 4 lakh. The Section 87A rebate in the New Regime was increased from Rs. 25,000 to Rs. 60,000, making income up to Rs. 12 lakh completely tax-free. The standard deduction for salaried individuals in the New Regime was raised from Rs. 50,000 to Rs. 75,000. The TDS threshold for senior citizens on interest income was doubled from Rs. 50,000 to Rs. 1,00,000. The TDS threshold on rent was raised from Rs. 2.4 lakh to Rs. 6 lakh per year.

Budget 2026 Update

Finance Minister Nirmala Sitharaman confirmed in Budget 2026 that there are no changes to income tax slab rates for FY 2026-27. All existing slabs, rebates, and deductions remain exactly as they are. Taxpayers can continue with the same planning for the next financial year without any adjustments.

Quick Reference Glossary

Conclusion — Income Tax Slab Rates 2025-26 Made Simple

Income tax does not need to be intimidating. Once you understand the slab system, the two regime options, and how deductions work, the entire process becomes straightforward and manageable.

The New Tax Regime is the right choice if your income is below Rs. 12 lakh or you do not make significant tax-saving investments. You pay zero tax, face no paperwork related to investments, and can freely invest wherever you prefer.

The Old Tax Regime is the right choice if you already invest regularly in PPF, LIC, ELSS, or a home loan. Those deductions can significantly reduce your taxable income and result in a lower overall tax than the New Regime.

The golden rule remains unchanged — calculate your tax under both regimes using your actual income and deductions. Choose the one that gives a lower result. And file your Income Tax Return for FY 2025-26 before 31st July 2026.

Also read: https://thecommercelab.co.in/what-is-pan-card-full-guide-rules-how-to-apply-in-2026/

Swathika B

Swathika B is an MBA graduate in Finance & Business Analytics , the founder of The Commerce Lab. With a strong academic foundation in B.Com BFSI and hands-on experience in financial analysis, data analytics, and business studies, she created this platform to make Commerce and Accountancy simple, practical, and exam-ready for students across India.