Taxation and accounting

New Income Tax Act 2025: What Changes from April 2026

India's new Income Tax Act 2025 replaces the 1961 law from April 2026. Learn what changes — the 'tax year' concept, simplified structure, new ITR forms and more.

Taxation and accounting · 5 min read · Updated 2026-06-09

A new income tax law

After more than six decades, India is replacing the Income Tax Act of 1961 with the new Income Tax Act 2025, effective from 1 April 2026. The goal is to modernise and simplify the law, which had become complex through decades of amendments. For most taxpayers, the core principles stay the same, but the structure and some processes are cleaner.

Simpler structure and language

The new Act reorganises provisions into a far more concise, readable structure with fewer, clearer chapters. The aim is to make the law easier to understand for ordinary taxpayers and businesses, reducing confusion and disputes over interpretation.

The 'tax year' concept

One notable change is the move toward a clearer 'tax year' approach, simplifying the earlier interplay of 'previous year' and 'assessment year'. This makes it easier to understand which period your income and filing relate to.

What stays the same

Importantly, the new law did not change the income tax slab rates or the existence of both the new and old regimes for the relevant year. The new regime remains the default, with the option to choose the old regime where beneficial. Cess and key reliefs broadly continue.

Process and compliance updates

Alongside the new Act, expect new ITR forms and streamlined filing and TDS/TCS processes designed to ease compliance. Some procedural reliefs were also introduced. As always, the practical details get clearer as forms and rules are notified.

How Aidwish helps

Aidwish stays on top of the new Income Tax Act and its forms, and files your returns accurately under the updated framework — so the transition is smooth for you.

Note: Tax and compliance rules change through government notifications and Budgets. Verify the current figures or consult a professional before acting. Aidwish can help you stay updated and compliant.

FAQ

Questions, answered

When does the new Income Tax Act 2025 take effect?

It is effective from 1 April 2026, replacing the Income Tax Act 1961.

Did the slabs change with the new Act?

No. The slab rates and the choice between the new and old regimes continue; the change is mainly to structure and simplification.

What is the 'tax year' concept?

A clearer approach that simplifies the earlier 'previous year' and 'assessment year' framework.

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