Income Tax Act 2026: New Rules & Key Changes from April 1

India's tax landscape is undergoing its most significant transformation in over six decades. Imagine filing your income tax return and discovering that familiar Section 80C is now Section 123, or that 'Assessment Year' no longer exists. From April 1, 2026, the Income Tax Act 2025 replaces the 1961 law, bringing simplified language, restructured provisions, and new compliance rules. Whether you're a salaried employee, business owner, or investor, understanding these changes is crucial for FY 2026-27. This comprehensive guide covers everything—from the new Tax Year concept to revised ITR deadlines, HRA expansion, and what these rules mean for your tax liability.

Understanding the Income Tax Act 2025: A New Era from April 1, 2026

The Income Tax Act 1961—drafted in the Nehru era, amended 65 times, and swollen to 819 sections across 47 chapters—formally ceases to be the law from April 1, 2026. The Income Tax Act 2025 replaces it with a cleaner, 536-section statute built for a digital economy, designed for ordinary citizens, and aimed at reducing legal disputes. The good news for taxpayers: tax rates, deductions, and exemptions remain unchanged—the new Act restructures the law itself.

Simultaneously, the Income Tax Rules 1962 (which had 500+ rules) are replaced by the Income Tax Rules 2026—reduced to just 333 rules. The Central Board of Direct Taxes (CBDT) notified the Income Tax Rules 2026 vide Notification No. G.S.R. 198(E) dated March 20, 2026, under Section 533 of the Income Tax Act 2025, which came into effect from April 1, 2026.

What Actually Changes for Individual Taxpayers?

For most individual taxpayers, almost nothing changes in terms of actual tax liability—rates, deductions, and exemptions are identical. However, professionals and businesses must navigate the complete renumbering of sections. For instance, the widely-used Section 80C becomes Section 123 from April 1, 2026, although the deduction benefit of up to ₹1.5 lakh continues.

Planning your taxes for FY 2026-27? Use our Income Tax Calculator to estimate your tax liability under both old and new regimes with the updated rules.

The Tax Year Concept: Simplifying India's Most Confusing Terminology

One of the most taxpayer-friendly changes is the elimination of confusing terminology. The Income Tax Act 2025 replaces two confusing terms—Previous Year and Assessment Year—with a single unified concept called Tax Year. Under the old system, income earned in Previous Year 2025-26 was assessed in Assessment Year 2026-27, and this two-year terminology confused millions of filers.

A 'Tax Year' is a period of twelve months contained in a financial year, replacing the term 'previous year' used in the Income Tax Act 1961. From April 1, 2026, the year in which you earn income is simply called the Tax Year—and you file your return within the same Tax Year.

How Tax Year Works: Practical Example

Tax Year 2026-27 = April 1, 2026 to March 31, 2027—income earned and filed within this period. Your Form 16 will now show Tax Year 2026-27 instead of Assessment Year 2027-28. However, FY 2025-26 (AY 2026-27) returns are still filed under the old Income Tax Act 1961. Your first return under the new Income Tax Act 2025 will be filed from July 2027 for Tax Year 2026-27.

Income Tax Slabs for FY 2026-27: What Remains Unchanged

Budget 2026 proposed no changes to the tax slabs for FY 2026-27, meaning the existing tax slabs and rates are applicable under both the new and old tax regimes. Tax slab rates are unchanged, and the new regime slabs introduced in Budget 2025 continue as the default for FY 2026-27.

New Tax Regime Slabs for FY 2026-27 (AY 2027-28)

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%

Taxpayers opting for the new tax regime are eligible for a tax rebate of up to ₹60,000 under Section 87A, making income up to ₹12 lakh effectively tax-free. For salaried employees, the tax-free limit extends to ₹12.75 lakh after factoring in the ₹75,000 standard deduction.

Old Tax Regime Slabs (Unchanged)

Under the old tax regime, taxpayers continue to enjoy basic exemption limits of ₹4 lakh under the new tax regime and ₹2.5 lakh under the old tax regime. Senior citizens (60-79 years) get ₹3 lakh exemption, and super senior citizens (80+ years) get ₹5 lakh exemption under the old regime. The old regime offers various deductions including Section 80C (₹1.5 lakh), Section 80D (health insurance), HRA, and home loan interest.

Compare your tax liability instantly using our Income Tax Calculator for FY 2026-27.

Major Compliance Changes: ITR Deadlines, Revised Returns & New Forms

Extended ITR Filing Deadlines

Effective from April 2026, the due date to file ITR-3 and ITR-4 for non-audit taxpayers has been extended to August 31 from the end of the relevant tax year, and this due date is also applicable for FY 2025-26 (AY 2026-27). However, the due date for ITR-1 and ITR-2 remains the same, i.e., July 31 from the end of the relevant tax year.

Revised Return Timeline Extended

The period to file a revised return has been extended from nine months to twelve months from the end of the relevant tax year, meaning the last date to file a revised ITR for FY 2025-26 (AY 2026-27) will be March 31, 2027 instead of December 31, 2026. However, a nominal fee has been introduced for filing a revised return after the nine-month period: ₹5,000 if total income exceeds ₹5 lakh, and ₹1,000 if total income is below ₹5 lakh.

Need help accessing your TDS details before filing? Use our Form 26AS / TDS Fetch Tool to instantly retrieve your tax credit information.

Income Tax Rules 2026: Key Changes in Exemptions and Allowances

HRA Exemption Expansion to 8 Cities

One of the most significant changes: The Income Tax Rules 2026 extend the 50% HRA exemption to include Bengaluru, Pune, Hyderabad, and Ahmedabad. From April 1, 2026, taxpayers in 8 cities can benefit from 50% HRA exemption—Delhi, Ahmedabad, Chennai, Bengaluru, Kolkata, Pune, Mumbai, and Hyderabad. Previously, only Delhi, Mumbai, Kolkata, and Chennai qualified.

Additionally, taxpayers are now required to disclose their relationship with the landlord to ensure there are no false HRA exemptions claimed. Calculate your exact HRA benefit using our HRA Calculator.

Increased Exemption Limits for Allowances and Perquisites

The new Income Tax Rules 2026 introduce higher exemption limits for children education allowance, hostel allowance, meal coupon exemption, etc., under the old regime. This long-awaited change reflects exempt allowances and perquisite values consistent with current market rates and inflation, making the exemptions and benefits meaningful.

For example, meal vouchers up to ₹200 per day are tax-free as per the new income tax rule changes. Gift vouchers have been raised: tax-free gift vouchers are now ₹15,000 annually (available under both old and new regimes), up from ₹5,000.

Section Renumbering: From 80C to Section 123

The most widely-used tax-saving provision undergoes a numbering change. In the Income Tax Act 2025, Section 80C deductions now fall under Section 123, but the overall deduction limit of ₹1.5 lakh in a tax year remains unchanged. All eligible investments are now listed in Schedule XV.

Eligible investments under Section 123 (formerly 80C) continue to include:

• Public Provident Fund (PPF)
• Equity Linked Savings Scheme (ELSS)
• Life Insurance Premiums
• National Savings Certificate (NSC)
• 5-year Tax Saving Fixed Deposits
• Sukanya Samriddhi Yojana
• Home Loan Principal Repayment
• Tuition Fees for Children (maximum 2 children)
• National Pension Scheme (NPS) under Section 80CCD(1)

Since many taxpayers are familiar with Section 80C by name, the shift to Section 123 is expected to cause confusion initially, especially during the first year of filing under the new Act. However, these deductions remain relevant for taxpayers who choose the old regime, even after the new law takes effect.

Important: Section 80C/Section 123 deductions are not available under the new tax regime. Only taxpayers opting for the old regime can claim these benefits.

Other Significant Changes from April 1, 2026

TCS Rate Rationalization

Multiple TCS rates across categories have been simplified to a uniform 2%, reducing confusion for businesses and importers and following the government's ongoing effort to reduce TCS-driven refund delays.

Sovereign Gold Bonds (SGB) Taxation Change

From April 1, 2026, capital gains on redemption of Sovereign Gold Bonds (SGB) are exempt only if the bonds were issued by the RBI in the initial issuance. SGBs purchased in the secondary market will not be excluded, and capital gains will be taxed. If you hold SGBs, calculate your potential capital gains liability using our Capital Gain Calculator.

Buyback Taxation

The amount received by taxpayers on the buyback of shares by the company is now taxable under the head "Capital gains", marking a shift in how buyback proceeds are treated for tax purposes.

Minimum Alternate Tax (MAT) Reduction

Minimum Alternate Tax has been reduced from 15% to 14% for companies. Critically, companies will not be allowed to accumulate new MAT credit after March 31, 2026. Existing MAT credits accumulated before April 1, 2026 can still be utilized.

Dividend Income Deduction Removed

Earlier, taxpayers could deduct interest expenses (up to 20% of dividend income) while computing taxable dividend income. From April 1, 2026, this deduction is removed.

How to Prepare for the Income Tax Act 2025

For Salaried Employees

• Review your salary structure for the new financial year FY 2026-27
• Decide between old and new tax regimes based on your deductions
• If you live in Bengaluru, Pune, Hyderabad, or Ahmedabad, recalculate your HRA benefit
• Understand that Section 80C is now Section 123 (but benefits remain the same)
• Plan tax-saving investments before March 31, 2027

For Business Owners and Professionals

• Update accounting software with new section numbering
• Mark the new ITR-3/ITR-4 deadline: August 31
• Review TCS compliance under the new 2% uniform rate
• Understand the Tax Year concept for advance tax payments
• Consult with your CA about MAT credit utilization before March 31, 2026

For Investors

• Review your Sovereign Gold Bond holdings (secondary market SGBs now taxable)
• Plan equity investments considering unchanged LTCG/STCG rates
• Use our Stock Profit Calculator to estimate your gains and tax liability
• Continue claiming NPS deduction of ₹50,000 under Section 80CCD(1B) if in old regime

Old Regime vs New Regime: Which Should You Choose for FY 2026-27?

The dual regime structure continues in FY 2026-27. The Income Tax Bill 2026 retains the dual-tax regime approach while introducing notable updates aimed at simplifying compliance and expanding benefits for certain taxpayer groups.

Choose the New Tax Regime if:

• Your total deductions (80C + 80D + HRA + home loan interest) are less than ₹3-4 lakh
• You prefer zero paperwork and simple tax filing
• You want to benefit from the ₹75,000 standard deduction
• Your income is between ₹7 lakh to ₹15 lakh with minimal investments

Choose the Old Tax Regime if:

• You have significant 80C investments (₹1.5 lakh), health insurance (₹50,000+), and HRA exemption
• You're paying home loan interest (up to ₹2 lakh deduction under Section 24b)
• You have education loan interest (unlimited deduction under Section 80E)
• Your total deductions exceed ₹4-5 lakh annually

Use our Income Tax Calculator to run a side-by-side comparison and see which regime saves you more tax.

Practical Example: Tax Calculation for FY 2026-27

Case Study: Mr. Sharma, a salaried employee in Bengaluru, earns ₹15,00,000 annually.

Under New Tax Regime:

• Gross Salary: ₹15,00,000
• Less: Standard Deduction: ₹75,000
• Taxable Income: ₹14,25,000
• Tax Calculation:
  • ₹0-4 lakh: Nil
  • ₹4-8 lakh (₹4 lakh × 5%): ₹20,000
  • ₹8-12 lakh (₹4 lakh × 10%): ₹40,000
  • ₹12-14.25 lakh (₹2.25 lakh × 15%): ₹33,750
• Total Tax: ₹93,750
• Add: 4% Cess: ₹3,750
• Final Tax: ₹97,500

Under Old Tax Regime:

• Gross Salary: ₹15,00,000
• Less: Standard Deduction: ₹50,000
• Less: HRA Exemption (50% applicable in Bengaluru): ₹1,80,000
• Less: Section 80C: ₹1,50,000
• Less: Section 80D (health insurance): ₹25,000
• Taxable Income: ₹10,95,000
• Tax: ₹1,47,000 (before cess)
• Add: 4% Cess: ₹5,880
• Final Tax: ₹1,52,880

Verdict: For Mr. Sharma, the new tax regime saves ₹55,380 in taxes, making it the better choice despite losing deductions.

Conclusion: Navigating India's New Tax Landscape

The Income Tax Act 2025, effective from April 1, 2026, represents the most comprehensive overhaul of India's direct tax system in 65 years. While tax rates and deduction limits remain unchanged, the simplified structure, new Tax Year concept, extended filing deadlines, and expanded HRA benefits mark a taxpayer-friendly shift. Whether you're adapting to Section 123 (formerly 80C), planning investments under the dual regime, or understanding the new ITR deadlines, staying informed is your best tax-saving strategy.

Key action points: Review your salary structure, decide between old and new regimes early, leverage the expanded HRA exemption if you're in the 8 covered cities, and mark the new ITR deadlines in your calendar. The transition from the 1961 Act to the 2025 Act is not just a legal change—it's an opportunity to simplify your tax compliance and optimize your financial planning.

Ready to calculate your tax liability for FY 2026-27? Explore all our free tax tools at TaxFetch Tools and stay ahead of the new tax rules. From income tax calculators to TDS verification and capital gains computation, we've got everything you need for seamless tax compliance under the new Income Tax Act 2026.

Frequently Asked Questions (FAQs)

What is the Income Tax Act 2025 and when does it come into effect?

The Income Tax Act 2025 replaces the Income Tax Act 1961 and comes into effect from April 1, 2026. It simplifies the 819-section old law into a 536-section statute with plain language and logical sequencing. Tax rates, slabs, and deductions remain unchanged, but section numbering is restructured. The Income Tax Rules 2026 replace the 1962 Rules, reducing 500+ rules to just 333 rules.

What is the Tax Year concept under the new Income Tax Act 2026?

The Tax Year replaces the confusing Previous Year and Assessment Year terminology. From April 1, 2026, income earned in Tax Year 2026-27 (April 1, 2026 to March 31, 2027) will be filed and assessed within the same Tax Year. This eliminates the dual-year reference that confused millions of taxpayers. Your Form 16 will now show Tax Year 2026-27 instead of Assessment Year 2027-28.

Are income tax slabs changing for FY 2026-27?

No, Budget 2026 retained the existing tax slabs for FY 2026-27. Under the new tax regime, income up to ₹4 lakh is exempt, with rates ranging from 5% to 30%. Section 87A rebate of ₹60,000 ensures income up to ₹12 lakh is tax-free. For salaried individuals, the effective tax-free limit is ₹12.75 lakh after the ₹75,000 standard deduction. The old regime slabs also remain unchanged.

What are the new ITR filing deadlines from April 2026?

From April 2026, ITR-3 and ITR-4 filing deadlines for non-audit taxpayers have been extended to August 31 from the end of the relevant tax year. ITR-1 and ITR-2 deadlines remain July 31. The period to file revised returns has been extended from 9 months to 12 months, with the last date being March 31 instead of December 31. A fee of ₹5,000 applies if total income exceeds ₹5 lakh for revised returns filed after 9 months.

Which cities now qualify for 50% HRA exemption under Income Tax Rules 2026?

The Income Tax Rules 2026 extend the 50% HRA exemption to eight cities: Delhi, Mumbai, Kolkata, Chennai, Bengaluru, Pune, Hyderabad, and Ahmedabad. Previously, only Delhi, Mumbai, Kolkata, and Chennai qualified for 50% HRA exemption. Taxpayers in these cities can now claim higher HRA benefits, but must disclose their relationship with the landlord to prevent false claims.