FormsScientific Research & Deductions › Form 10

Form 10 — Report by prescribed authority to Chief Commissioner re scientific research approval

Compiled — pending CBDT Appendix III cross-check B · Scientific Research & Deductions
Replaces old Form 3CJ. Under the Income-tax Act, 2025, this compliance now uses Form 10.
New form numberForm 10
Old form number3CJ
Act 2025 reference45
CategoryB · Scientific Research & Deductions
Applies fromTax Year 2026-27 (from 1 April 2026)

What is Form 10?

Form 10 is the Income-tax Act, 2025 form titled “Report by prescribed authority to Chief Commissioner re scientific research approval”. It replaces the earlier Form 3CJ used under the Income-tax Act, 1961 (and the Income-tax Rules, 1962). The purpose of the form is unchanged — the number and format have been updated under the new law.

It falls under the Scientific Research & Deductions category and relates to Section 45 of the Act, and applies to Tax Year 2026-27 (AY 2026-27) onwards, i.e. from 1 April 2026.

A fuller plain-language explainer for Form 10, reviewed by our Chartered Accountants, is being added.

Transitional rule — which form applies?

⚠️ Which form applies depends on the tax year the compliance relates to, not the calendar date you file. Proceedings for tax years beginning before 1 April 2026 (assessments, appeals, TDS for transactions up to 31 March 2026, and Section 89 relief for those years) continue on the old forms.

Frequently asked questions

What is the new form for Form 3CJ?

Under the Income-tax Act, 2025, old Form 3CJ is replaced by Form 10 — Report by prescribed authority to Chief Commissioner re scientific research approval. It applies to Tax Year 2026-27 onwards.

From when does Form 10 apply?

It applies to Tax Year 2026-27 (AY 2026-27) onwards, i.e. from 1 April 2026. Compliance relating to earlier tax years continues on the old forms.

Not sure which form applies to your case?

Our Chartered Accountants handle the filing end-to-end — TDS certificates, audit reports, trust/NGO compliance and more.

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This directory is compiled from official CBDT / incometax.gov.in sources and reputable references, and is being reconciled against the Gazette-notified Income-tax Rules, 2026 (Appendix III). Forms marked “compiled” are pending that final cross-check. This is general information, not tax advice.