What is the Income-tax Act, 2025 and when did it come into effect?

The Income-tax Act, 2025 replaced the Income Tax Act 1961 from April 1, 2026. It simplifies the entire direct tax framework, renumbers sections, removes redundancies, and modernizes taxation for India.

Is the Income Tax Act 1961 still valid after April 2026?

The Income Tax Act 1961 was repealed under Section 536 of the new Act from April 1, 2026. However, all assessments, appeals, and proceedings for periods before April 1, 2026 continue under the old ITA 1961 rules.

What is the new section number for Section 80C in Income Tax Act 2025?

Section 80C of the ITA 1961 maps to Section 123 of the Income-tax Act, 2025. Deductions for LIC premiums, PPF, ELSS, EPF, and home loan principal repayment continue under the new act.

What is the new section for TDS on professional fees (194J)?

Section 194J (TDS on professional and technical services) of the old Income Tax Act 1961 has been renumbered in the Income-tax Act, 2025. Use our free converter at ita1961to2025.in to find the exact new section number instantly.

How do I convert old income tax section numbers to new 2025 numbers?

Visit ita1961to2025.in and use the free section search tool. Type any old ITA 1961 section number (e.g., 80C, 194J, 139) and instantly see the new Income-tax Act, 2025 equivalent, its status, and key changes.

Is the ITA 1961 to 2025 mapping tool free for CAs and tax professionals?

Yes, completely free. The section mapper, comparison cheat sheet, PDF download, and Tax Academy blog are all free for Chartered Accountants, tax lawyers, law students, and taxpayers.

Which sections were completely deleted in the new Income Tax Act 2025?

Several redundant and overlapping sections from ITA 1961 were not carried into the Income-tax Act, 2025. Use our free converter — each section is marked as Retained, Modified, or Deleted so you can quickly check any section's status.

Can I download the ITA 1961 to Income-tax Act 2025 comparison as a PDF?

Yes! Visit the Comparison page at ita1961to2025.in/comparison to download a free cheat sheet PDF showing side-by-side mapping of key ITA 1961 sections to their Income-tax Act, 2025 equivalents.

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ITA 1961 → ITA 2025Investigation

Section 133C → Section 151

Power to call for information by prescribed income-tax authority

RetainedHigh - The most common notice received by everyday taxpayers.

Quick Answer

Section 133C of the Income Tax Act, 1961 (Power to call for information by prescribed income-tax authority) corresponds to Section 151 of the Income-tax Act, 2025, effective 1st April 2026. Status: Retained.

What changed for Section 133C

Section 133C of the 1961 Act sets out the rules on power to call for information by prescribed income-tax authority. Allows centralized authorities (like CPC) to issue notices calling for information to verify data in the ITR.

Under the Income-tax Act, 2025 (effective 1st April 2026), Section 133C is retained and renumbered as Section 151 of the Income-tax Act, 2025. Retained. This is the legal backing for all automated mismatch notices sent by the Centralized Processing Centre (CPC).

The transition impact on Section 133C is assessed as High. The most common notice received by everyday taxpayers.

Old Law (ITA 1961)Ch: XIII

Sec 133C

Provision Summary

Allows centralized authorities (like CPC) to issue notices calling for information to verify data in the ITR.

New Law (ITA 2025)Ch: XII

Sec 151

Provision Summary

Retained. This is the legal backing for all automated mismatch notices sent by the Centralized Processing Centre (CPC).

Key Changes & Highlights

Fully integrated with the faceless compliance portal.

Related Sections

Section 143(1)

Frequently Asked Questions

Which subject does Section 133C of the 1961 Act cover?

Section 133C of the Income Tax Act, 1961 covers power to call for information by prescribed income-tax authority. Allows centralized authorities (like CPC) to issue notices calling for information to verify data in the ITR.

What is the new section number for Section 133C under the Income-tax Act, 2025?

Section 133C of the Income Tax Act, 1961 maps to Section 151 of the Income-tax Act, 2025, effective 1st April 2026 (status: Retained). Retained. This is the legal backing for all automated mismatch notices sent by the Centralized Processing Centre (CPC).

How does the Income-tax Act, 2025 affect Section 133C in practice?

The transition impact for Section 133C is rated High. The most common notice received by everyday taxpayers.

What is new about Section 133C under the Income-tax Act, 2025?

Fully integrated with the faceless compliance portal. These points are specific to Section 133C (Power to call for information by prescribed income-tax authority).

Disclaimer: This mapping of Section 133C (Power to call for information by prescribed income-tax authority) to Section 151 of the Income-tax Act, 2025 is for educational and reference purposes only, based on publicly available drafts and circulars. As Section 133C is currently marked Retained, always confirm its treatment with a qualified Chartered Accountant before filing or making compliance decisions.

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